Right now

Guam International Airport, Tiyan

The NWS observation had empty fields; 7 values filled from the PGUM METAR.

Temperature 80°F

Clear. Feels like 86°. 27°C, feels like 30°C.

  • Rain chance, tonight4%
  • WindNE 6 mph (10 km/h)
  • Humidity87%
  • UV index7 peak today
  • Sunrise tomorrowabout 6:18am

Measured today 9:54pm, about 10 miles from Ipan.

In plain words

English, 日本語, 한국어, 中文, Tagalog

Right now near Ipan: clear, 80°F (27°C), feels like 86°F (30°C). Wind from the northeast at 6 mph. Up to 9% chance of rain in the next 12 hours. Typhoon readiness: COR 4 (normal). This is Guam's standing level; the GHS/OCD website could not be checked just now. No weather alerts in effect. Seas around 6 ft; rip current risk is moderate. 1 active tropical cyclone in the western Pacific; the nearest is about 1,136 miles from Guam.イパン周辺の現在の天気は晴れ、気温27°C(80°F)、体感温度30°C(86°F)です。風は北東、時速10km(6マイル)です。今後12時間の降水確率は最大9%です。台風警戒レベル: COR 4(平常時)。これはグアムの通常のレベルです(現在GHS/OCDのサイトを確認できません)。現在、気象警報・注意報は出ていません。沿岸の波の高さは約1.8m(6フィート)です。離岸流の危険度は「中程度」です。西太平洋では1個の熱帯低気圧(台風を含む)が発生中で、最も近いものはグアムから約1,828km(1,136マイル)です。이판 주변 현재 날씨: 맑음. 기온 27°C(80°F), 체감 온도 30°C(86°F). 바람: 북동풍, 시속 10km(6마일). 향후 12시간 강수 확률: 최대 9%. 태풍 대비 단계: COR 4(평상시). 괌의 기본 단계입니다(현재 GHS/OCD 웹사이트를 확인할 수 없음). 현재 발효 중인 기상 특보 없음. 연안 파고: 약 1.8m(6피트). 이안류 위험: 보통. 서태평양에서 열대저기압(태풍 포함) 1개가 활동 중이며, 가장 가까운 것은 괌에서 약 1,828km(1,136마일) 떨어져 있습니다.伊潘附近目前天气:晴,气温27°C(80°F),体感温度30°C(86°F)。东北风,风速每小时10公里(6英里)。未来12小时降雨概率最高9%。台风戒备等级:COR 4(正常状态)。这是关岛的常规等级(目前无法查看GHS/OCD网站)。目前没有生效的天气警报。近海浪高约1.8米(6英尺)。离岸流风险:中等。西太平洋目前有1个热带气旋(含台风),最近的一个距关岛约1,828公里(1,136英里)。Sa Ipan ngayon: 27°C (80°F), parang 30°C (86°F) ang pakiramdam, at maaliwalas ang langit. Hangin mula sa hilagang-silangan, 10 km/h (6 mph). Hanggang 9% ang tsansa ng ulan sa susunod na 12 oras. Kahandaan sa bagyo: COR 4 (normal na kalagayan). Ito ang karaniwang antas ng Guam; hindi ma-check ngayon ang website ng GHS/OCD. Walang aktibong babala sa panahon. Taas ng alon sa baybayin: mga 1.8 m (6 talampakan). Panganib ng rip current: katamtaman. May 1 aktibong bagyo sa kanlurang Pasipiko; ang pinakamalapit ay mga 1,828 km (1,136 milya) mula sa Guam.

日本語 (Japanese)

イパン周辺の現在の天気は晴れ、気温27°C(80°F)、体感温度30°C(86°F)です。風は北東、時速10km(6マイル)です。今後12時間の降水確率は最大9%です。台風警戒レベル: COR 4(平常時)。これはグアムの通常のレベルです(現在GHS/OCDのサイトを確認できません)。現在、気象警報・注意報は出ていません。沿岸の波の高さは約1.8m(6フィート)です。離岸流の危険度は「中程度」です。西太平洋では1個の熱帯低気圧(台風を含む)が発生中で、最も近いものはグアムから約1,828km(1,136マイル)です。

한국어 (Korean)

이판 주변 현재 날씨: 맑음. 기온 27°C(80°F), 체감 온도 30°C(86°F). 바람: 북동풍, 시속 10km(6마일). 향후 12시간 강수 확률: 최대 9%. 태풍 대비 단계: COR 4(평상시). 괌의 기본 단계입니다(현재 GHS/OCD 웹사이트를 확인할 수 없음). 현재 발효 중인 기상 특보 없음. 연안 파고: 약 1.8m(6피트). 이안류 위험: 보통. 서태평양에서 열대저기압(태풍 포함) 1개가 활동 중이며, 가장 가까운 것은 괌에서 약 1,828km(1,136마일) 떨어져 있습니다.

简体中文 (Chinese, Simplified)

伊潘附近目前天气:晴,气温27°C(80°F),体感温度30°C(86°F)。东北风,风速每小时10公里(6英里)。未来12小时降雨概率最高9%。台风戒备等级:COR 4(正常状态)。这是关岛的常规等级(目前无法查看GHS/OCD网站)。目前没有生效的天气警报。近海浪高约1.8米(6英尺)。离岸流风险:中等。西太平洋目前有1个热带气旋(含台风),最近的一个距关岛约1,828公里(1,136英里)。

Tagalog

Sa Ipan ngayon: 27°C (80°F), parang 30°C (86°F) ang pakiramdam, at maaliwalas ang langit. Hangin mula sa hilagang-silangan, 10 km/h (6 mph). Hanggang 9% ang tsansa ng ulan sa susunod na 12 oras. Kahandaan sa bagyo: COR 4 (normal na kalagayan). Ito ang karaniwang antas ng Guam; hindi ma-check ngayon ang website ng GHS/OCD. Walang aktibong babala sa panahon. Taas ng alon sa baybayin: mga 1.8 m (6 talampakan). Panganib ng rip current: katamtaman. May 1 aktibong bagyo sa kanlurang Pasipiko; ang pinakamalapit ay mga 1,828 km (1,136 milya) mula sa Guam.

Pick a language with the Language button at the top.

This week

National Weather Service forecast for Ipan. Tap a flag for that day.

Today, November 11

Tonight: low 78° (26°C), 4% chance of rain

Isolated rain showers. Partly cloudy, with a low around 78. Northeast wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.

Thursday, November 12

Thursday: high 88° (31°C), 9% chance of rain

Isolated rain showers. Mostly sunny, with a high near 88. Heat index values as high as 100. Northeast wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible.

Thursday Night: low 78° (26°C), 6% chance of rain

Isolated rain showers. Partly cloudy, with a low around 78. Heat index values as high as 98. Northeast wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible.

Friday, November 13

Friday: high 88° (31°C), 17% chance of rain

Isolated rain showers. Mostly sunny, with a high near 88. Heat index values as high as 100. East northeast wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible.

Friday Night: low 78° (26°C), 13% chance of rain

Isolated rain showers. Partly cloudy, with a low around 78. East northeast wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.

Saturday, November 14

Saturday: high 88° (31°C), 3% chance of rain

A slight chance of rain showers. Mostly sunny, with a high near 88.

Saturday Night: low 76° (24°C), 17% chance of rain

A slight chance of rain showers. Partly cloudy, with a low around 76.

Sunday, November 15

Sunday: high 89° (32°C), 18% chance of rain

A slight chance of rain showers. Mostly sunny, with a high near 89.

Sunday Night: low 76° (24°C), 13% chance of rain

A slight chance of rain showers. Partly cloudy, with a low around 76.

Monday, November 16

Monday: high 89° (32°C), 12% chance of rain

A slight chance of rain showers. Mostly sunny, with a high near 89.

Monday Night: low 77° (25°C), 17% chance of rain

A slight chance of rain showers. Partly cloudy, with a low around 77.

Tuesday, November 17

Tuesday: high 89° (32°C), 16% chance of rain

A slight chance of rain showers. Mostly sunny, with a high near 89.

Tuesday Night: low 76° (24°C), 15% chance of rain

A slight chance of rain showers. Partly cloudy, with a low around 76.

Next 24 hours

78° to 88°

Rain chance up to 9%.

  1. 11pm81°rain chance 4%
  2. Thu80°rain chance 4%
  3. 1am80°rain chance 4%
  4. 2am79°rain chance 4%
  5. 3am79°rain chance 4%
  6. 4am78°rain chance 4%
  7. 5am78°rain chance 4%
  8. 6am78°rain chance 9%
  9. 7am79°rain chance 9%
  10. 8am80°rain chance 9%
  11. 9am82°rain chance 9%
  12. 10am84°rain chance 9%
  13. 11am86°rain chance 9%
  14. 12pm87°rain chance 9%
  15. 1pm88°rain chance 9%
  16. 2pm88°rain chance 9%
  17. 3pm88°rain chance 9%
  18. 4pm87°rain chance 9%
  19. 5pm87°rain chance 9%
  20. 6pm86°rain chance 6%
  21. 7pm85°rain chance 6%
  22. 8pm84°rain chance 6%
  23. 9pm84°rain chance 6%
  24. 10pm82°rain chance 6%

Swipe or scroll sideways for more hours.

On the water now

Ipan faces east. Seas, surf, wind, and tides for boating, fishing, and a swim at the Cove.

6 ft 1.8 mSeas, Guam coastal watersNWS, issued 4:50pm
5 to 7 ftSurf on east-facing reefs (Ipan side)NWS surf forecast, 5:36pm
Calm 0 km/hWind at Pago Bay, gusts 2 mphNOAA station, 10:24pm
2:59amNext low tide, -0.48 ft (-0.1 m)Apra Harbor, NOAA, tomorrow

Rip current risk: Moderate. There is a moderate risk of rip currents along north- and east-facing reefs.

Water temperature: 84°F (29°C) at the CDAT SST Analysis (NWS, 5:36pm); 85.6°F (30°C) at Apra Harbor on the west coast, 10:24pm.

Boating forecast

PMZ151 Guam Coastal Waters

6 ftseas (1.8 m)
10 ktwind, about 12 mph
Tonight
Northeast wind 10 kt. Seas 5 to 6 ft. Wave Detail: East 5 ft at 9 seconds, northwest 3 ft at 11 seconds and northeast 2 ft at 4 seconds.
Thursday
Northeast wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: East 4 ft at 9 seconds, northwest 3 ft at 10 seconds and northeast 3 ft at 4 seconds.
More of the forecast

Gentle northeasterlies will increase to moderate by Thursday night and continue through the rest of the forecast period. Combined seas of 5 to 6 ft will build to 6 to 8 feet beginning Friday due to an elevated north swell emanating from distant Typhoon Cempaka.

Thursday Night
Northeast wind 15 kt. Seas 5 to 7 ft. Wave Detail: East 4 ft at 9 seconds, north 4 ft at 11 seconds and northeast 3 ft at 5 seconds.
Friday
Northeast wind 15 kt. Seas 6 to 8 ft. Wave Detail: North 6 ft at 12 seconds, east 4 ft at 9 seconds and northeast 3 ft at 5 seconds.
Friday Night
Northeast wind 15 kt. Seas 6 to 8 ft. Wave Detail: North 6 ft at 12 seconds, east 5 ft at 9 seconds and northeast 3 ft at 5 seconds.
Saturday
Northeast wind 15 kt. Seas 6 to 8 ft. Wave Detail: North 5 ft at 11 seconds, east 5 ft at 9 seconds, and northeast 3 ft at 5 seconds.
Sunday
East wind 15 kt. Seas 5 to 7 ft. Wave Detail: East 5 ft at 9 seconds, north 4 ft at 10 seconds and east 3 ft at 5 seconds.
Monday
East wind 15 kt. Seas 4 to 6 ft. Wave Detail: East 5 ft at 9 seconds, north 3 ft at 10 seconds and east 3 ft at 5 seconds.

Issued today 4:50pm.

Tides

Apra Harbor, Guam

2:59am

Next low tide, -0.48 ft (-0.1 m), tomorrow. Then high tide tomorrow 10:24am, 2.07 ft.

-1 ft0 ft1 ft2 ft3 ftThu6am12pm6pm2:59am10:24am3:42pm8:04pm

Measured water level 0.84 ft at 10:24pm.

All tide times
  • Low -0.49 fttoday 2:27am
  • High 2.12 fttoday 9:42am
  • Low 1.43 fttoday 3:02pm
  • High 2.03 fttoday 7:36pm
  • Low -0.48 fttomorrow 2:59am
  • High 2.07 fttomorrow 10:24am
  • Low 1.48 fttomorrow 3:42pm
  • High 1.95 fttomorrow 8:04pm
  • Low -0.43 ftFriday 3:35am
  • High 2.01 ftFriday 11:10am

Apra Harbor is NOAA's tide reference station for Guam; tide times on the east coast at Ipan are similar but not identical.

Ipan wave buoy

CDIP 121 / NDBC 52200

Offline

The Ipan buoy has sent no wave readings since Jun 29, so there is no current buoy number to show. NDBC has no real-time data file for 52200.

Last buoy report: 3.1 ft waves on Jun 29 at 8:26am. Shown for the record, not as today's conditions.

For current wave conditions off Ipan, see the Waves off Ipan card; it is a model, not a buoy reading.

Waves off Ipan

Model forecast

5.1 ft 1.6 m

About every 10 seconds, from the east-northeast.

From a computer wave model, not a measurement. Nearest model grid point to the Ipan buoy: 13.355N 144.790E, about 1.7 miles northeast of the Cove.

  • Model timetoday 11pm
  • Nearby water85.6°F at Apra Harbor
4 ft5 ft6 ftNowTue 10pmThu 10pm

Solid line: the model's last 24 hours. Dashed: its forecast.

Sea temperature

Around Guam

85.6°F 30°C

Apra Harbor sensor, 10:24pm.

  • Around Guam (satellite)84.3° to 84.8°F
  • Compared with normal+0.9°F
  • Coral bleaching alertBleaching Watch

Satellite data for Nov 9. Heat stress: 1.7 degree heating weeks.

Open the Pacific sea temperature map (opens in a new tab)

NOAA Coral Reef Watch daily 5 km sea surface temperature, Pacific Ocean (data for Nov 9)

Show the coral heat stress gauge
NOAA Coral Reef Watch bleaching alert gauge for Guam
NOAA Coral Reef Watch heat stress gauge for Guam.

Live wind and wave maps

Windy, WindFinder, and PacIOOS

Open the Windy map (opens in a new tab)

A live map from windy.com. It uses more data, so it waits for your tap.

Typhoon readiness

COR, from Guam Homeland Security

Normal readiness

Standing level - GHS site not reachable at 10:34pm.

Standing rule: Guam stays in COR 4 unless the Governor announces otherwise. No COR change appears in recent local news, and NWS has no tropical storm or typhoon watches or warnings for Guam. The GHS/OCD website could not be reached from our server on this check.

Guam Homeland Security, ghs.guam.gov, opens in a new tabGHS typhoon checklist (opens in a new tab)

What each COR level means
  1. COR 4Guam is always in Condition IV. A typhoon may develop and hit the island within 72 hours.
  2. COR 3A typhoon may possibly hit the island within 48 hours.
  3. COR 2A typhoon is expected to hit the island within 24 hours.
  4. COR 1A typhoon is expected to hit the island within 12 hours.

Definitions from Guam Homeland Security / Office of Civil Defense. COR changes are announced by the Governor through GHS/OCD.

Tropical storms

Joint Typhoon Warning Center

1,136 mi

to the nearest storm, Typhoon Cempaka, north-northeast of Guam. 1 active storm in the western Pacific.

JTWC is tracking 1 active tropical cyclone in the western North Pacific. Closest to Guam: Typhoon Cempaka (31W), about 1,136 miles north-northeast of Guam, moving east-northeast at 38 mph with top winds near 75 mph. No JTWC forecast track currently comes within 600 miles of Guam. No tropical disturbances are being watched for development.

500 mi1,000 mi1,500 miPalauChuukWake IslandGuamCempaka
Open the JTWC satellite outlook (opens in a new tab)
Read the JTWC outlook message

ABPW10 PGTW 110600 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS/110600Z-120600ZNOV2026// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/110151ZNOV2026// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: (1) AT 11NOV26 0000Z, TYPHOON 31W (CEMPAKA) WAS LOCATED NEAR 27.7N 146.7E, APPROXIMATELY 339 NM EAST-NORTHEAST OF IWO TO, AND HAD TRACKED EAST-NORTHEASTWARD AT 23 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 70 KNOTS GUSTING TO 85 KNOTS. SEE REF A (WTPN31 PGTW 110300) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE.//

Outlook issued today 4pm.

Tsunami

U.S. Tsunami Warning Centers

No threat

No tsunami warnings, advisories, or watches for Guam.

Latest bulletin anywhere: Tsunami Information Statement Number 1, About 72 Miles Northwest Of Puerto Rico, 9,267 miles from Guam, Sunday 4:34pm.

Earthquakes

Magnitude 2.5 and up near Guam

M4.7

Latest: 152 km WSW of Merizo Village, Guam, today.

25 earthquakes of magnitude 2.5 or more within 620 miles of Guam in the last 30 days (4 in the last 7 days). Largest: M5.4, 192 km WSW of Merizo Village, Guam.

  1. Magnitude 4.7152 km WSW of Merizo Village, Guam (opens in a new tab)today 6:37pm. 107 miles west-southwest of Guam, 137 km deep.
  2. Magnitude 4.4Mariana Islands region (opens in a new tab)Monday 8:24am, Nov 9. 565 miles north of Guam, 212 km deep.
  3. Magnitude 4.611 km ENE of Yigo Village, Guam (opens in a new tab)Saturday 8:37am, Nov 7. 16 miles east-northeast of Guam, 113 km deep. Felt by 4 people.
  4. Magnitude 4.5107 km SSW of Colonia, Micronesia (opens in a new tab)Nov 5, 12:56am. 588 miles west-southwest of Guam, 10 km deep.
Show all 25 quakes
  1. Magnitude 4.5168 km SE of San Jose Village, Northern Mariana Islands (opens in a new tab)Nov 3, 5:59am. 124 miles east-northeast of Guam, 10 km deep.
  2. Magnitude 4.836 km SSW of Merizo Village, Guam (opens in a new tab)Oct 29, 12:18pm. 37 miles south-southwest of Guam, 70 km deep. Felt by 10 people.
  3. Magnitude 5.4192 km WSW of Merizo Village, Guam (opens in a new tab)Oct 28, 9:14am. 132 miles west-southwest of Guam, 95 km deep. Felt by 1 person.
  4. Magnitude 4.335 km NW of Piti Village, Guam (opens in a new tab)Oct 28, 7:51am. 29 miles west-northwest of Guam, 147 km deep.
  5. Magnitude 4.5124 km ESE of Inarajan Village, Guam (opens in a new tab)Oct 27, 7:14am. 80 miles east-southeast of Guam, 10 km deep.
  6. Magnitude 4.0Pagan region, Northern Mariana Islands (opens in a new tab)Oct 26, 9:41pm. 382 miles north of Guam, 233 km deep.
  7. Magnitude 4.637 km NE of Yigo Village, Guam (opens in a new tab)Oct 22, 6:06pm. 32 miles northeast of Guam, 98 km deep. Felt by 11 people.
  8. Magnitude 4.9Pagan region, Northern Mariana Islands (opens in a new tab)Oct 20, 5:09pm. 376 miles north of Guam, 250 km deep.
  9. Magnitude 4.9Pagan region, Northern Mariana Islands (opens in a new tab)Oct 20, 12:54pm. 339 miles north-northeast of Guam, 125 km deep.
  10. Magnitude 4.3144 km WSW of Merizo Village, Guam (opens in a new tab)Oct 20, 12:27pm. 102 miles west-southwest of Guam, 111 km deep.
  11. Magnitude 4.650 km S of Merizo Village, Guam (opens in a new tab)Oct 19, 3:28am. 45 miles south of Guam, 27 km deep.
  12. Magnitude 4.795 km ESE of Inarajan Village, Guam (opens in a new tab)Oct 18, 8:58pm. 62 miles east-southeast of Guam, 10 km deep.
  13. Magnitude 4.2Pagan region, Northern Mariana Islands (opens in a new tab)Oct 18, 6:17pm. 362 miles north of Guam, 224 km deep.
  14. Magnitude 4.6Mariana Islands region (opens in a new tab)Oct 17, 9:04pm. 231 miles east-southeast of Guam, 10 km deep.
  15. Magnitude 4.9114 km SSW of Merizo Village, Guam (opens in a new tab)Oct 16, 9:57pm. 86 miles south-southwest of Guam, 10 km deep. Felt by 2 people.
  16. Magnitude 4.2191 km NNE of Saipan, Northern Mariana Islands (opens in a new tab)Oct 16, 9:13pm. 257 miles north-northeast of Guam, 76 km deep.
  17. Magnitude 4.4Mariana Islands region (opens in a new tab)Oct 16, 1:57pm. 580 miles north-northwest of Guam, 324 km deep.
  18. Magnitude 4.2Mariana Islands region (opens in a new tab)Oct 15, 6:10pm. 435 miles north-northeast of Guam, 75 km deep.
  19. Magnitude 4.7172 km SSW of Merizo Village, Guam (opens in a new tab)Oct 15, 3:36pm. 123 miles south-southwest of Guam, 10 km deep.
  20. Magnitude 4.1Pagan region, Northern Mariana Islands (opens in a new tab)Oct 14, 6:07am. 383 miles north-northeast of Guam, 116 km deep.
  21. Magnitude 4.3Mariana Islands region (opens in a new tab)Oct 14, 1:37am. 376 miles north-northeast of Guam, 20 km deep.

USGS locates most quakes in this region at magnitude 4 and above, so small local quakes may not appear.

Two forecast models

European (ECMWF) and American (GFS), side by side

7 of 7

days this week where the two models roughly agree. Where they agree, the forecast is more certain.

  • Light to moderate rain today in both models (ECMWF 0.08 in, GFS 0.01 in).
  • The two models roughly agree on all 7 days ahead.
  • Rain over the next 7 days: ECMWF 0.6 in, GFS 0.7 in.
  • Winds stay fairly steady through the week. Windiest: Tuesday at about 20 mph (ECMWF).
  • Highs run 83° to 85°F in both models. Model temperatures are for a grid cell that is partly ocean, so they can run a few degrees below the NWS forecast highs.

Insights come from simple rules applied to the numbers below. Model point: Ipan, Guam (model grid point 13.25N, 144.75E).

ECMWF (blue dots)GFS (red squares)

Rain (inches)0123TodayThuFriSatSunMonTueHigh temperature (°F)80°82°84°86°TodayThuFriSatSunMonTue

Yellow rows are days the two models disagree.

Show the numbers
ECMWF and GFS daily numbers. Highlighted rows are days the models disagree.
DayHigh, ECMWF / GFSLowRain (in)Wind (mph)
Wed Nov 1183° / 84°82° / 81°0.08 / 0.0112 / 11
Thu Nov 1283° / 85°82° / 81°0.00 / 0.0318 / 16
Fri Nov 1384° / 84°82° / 81°0.01 / 0.0617 / 16
Sat Nov 1484° / 84°82° / 81°0.02 / 0.0119 / 16
Sun Nov 1584° / 83°81° / 81°0.19 / 0.2017 / 15
Mon Nov 1684° / 83°81° / 81°0.10 / 0.2518 / 17
Tue Nov 1783° / 85°80° / 81°0.21 / 0.1420 / 18
Wed Nov 1883° / 83°80° / 82°0.06 / 0.1223 / 18
Thu Nov 1984° / 84°80° / 81°0.15 / 0.4818 / 14
Fri Nov 2084° / 83°80° / 81°0.24 / 0.0917 / 11

Forecast discussion

NWS Guam, issued today 5:42pm

Area Forecast Discussion

Visible satellite imagery depicts partly cloudy skies and isolated trade-wind showers passing through the region. Altimetry indicates combined seas of 5 to 6 feet.

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Area Forecast Discussion National Weather Service Tiyan GU 542 PM ChST Wed Nov 11 2026 .Marianas Synopsis... Visible satellite imagery depicts partly cloudy skies and isolated trade-wind showers passing through the region. Altimetry indicates combined seas of 5 to 6 feet. && .Discussion... The trade-wind regime will continue for the Marianas, promoting periods of isolated showers with limited convection due to a temperature inversion and drier mid-level air stifling vertical growth. There may be potential for a brief period of low-end scattered showers on Friday, but deterministic and ensemble accumulated precipitation are leaning towards isolated. According to the U.S. Drought Monitor, there is no indication of drought occurring in the Marianas. However, little to no rainfall over the past several weeks should not be overlooked as total rainfall amounts at this time of year are about 3 inches below normal. As such, water conservation efforts are encouraged as dry season approaches, which could potentially introduce abnormally dry (D0) conditions across the region. && .Marine... Gentle to moderate northeasterlies will continue through the forecast period. Combined seas of 5 to 6 feet are comprised of a dominant trade swell and a secondary northwest swell. Beginning Friday, seas will increase to 6 to 8 feet as an elevated, long-period north swell from distant Typhoon Cempaka approaches the region, in addition to the prevailing trade swell. At the same time, surf along north-facing reefs may become hazardous, leading to dangerous swimming conditions and a high risk of rip currents. For now, a headline was included several days in advance to communicate such hazard. && .Eastern Micronesia... The Near-Equatorial Trough (NET) blankets a good portion of eastern Micronesia with spotty showers and isolated thunderstorms in the vicinity of the NET this afternoon. The NET is expected to continue to weaken throughout the next couple of days. Isolated to low-end scattered showers are expected to prevail throughout the forecast period at all forecast sites; though, some higher-end scattered showers will be possible tonight through Friday night at Majuro as an approaching trough moves through the RMI. Isolated thunderstorms will also be possible Thursday and Friday at Majuro. Light to gentle north to northeast winds at Pohnpei and Kosrae will become more easterly on Thursday and persist through the weekend. Light to gentle easterly winds will persist through much of Friday at Majuro and become more north to northeast starting Friday night, then becoming variable late on Saturday. Combined seas of 4 to 6 feet will generally prevail at all forecast points with seas consisting of a northeast, a north-northwest, and a small, southeast swell. Most of Eastern Micronesia is experiencing abnormally dry (D0) drought conditions. Try to start conserving water as we are transitioning into the dry season. && .Western Micronesia... An area of convergence is over Palau and Yap. This is forecast to bring scattered showers to these islands. However, model guidance suggests these showers have about 2 inches of Precipitable WATer (PWAT) to pull from. This could lead to quick burst of showers, while the rest of the day remain dry. While these showers may bring some temporary drought relief, Palau being in a moderate drought (D1) and Yap being in abnormally dry (D0), these categories are not expected to change this week. Overall, intermittent light to moderate scattered showers are expected through the beginning of next week. Try to start conserving water as we are transitioning into the dry season. For Chuuk, a ridge of high pressure has built in and will inhibit shower development through at least the beginning of next week. Chuuk remains abnormally dry (D1 drought category) for this time of year. Try to start conserving water as we are transitioning into the dry season. As for marine conditions near Palau and Yap, seas of 5 to 6 feet will gradually build over the next several days as a swell from distant Typhoon Cempaka will enter Palau and Yap's coastal waters later this week. This swell will bring heightened seas and elevated surf along north facing reefs. Surf levels are forecast to approach the thresholds of High Surf Advisory of 9 feet, however, at this time surf is not anticipated to breach that threshold. Conditions near Chuuk are forecasted to remain around 5 to 6 feet through the forecast period. East to north winds across the region will be light to moderate. && .GUM WATCHES/WARNINGS/ADVISORIES... GU...None. MP...None. Marianas Waters...None. && $$ Marianas: Mesa East Micronesia: Whisnant West Micronesia: Bowsher

Surf zone forecast

NWS Guam, issued today 5:36pm

Surf Zone Forecast

There is a moderate risk of rip currents along north- and east-facing reefs. Surf is comprised of an easterly trade swell and a secondary northwest swell that will eventually shift to the north around Thursday night. Distant Typhoon Cempaka may generate an elevated, long-period north swell over the next few days, potentially leading to hazardous surf and a high risk of rip currents along north-facing reefs on Friday.

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Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 536 PM ChST Wed Nov 11 2026 .DISCUSSION...There is a moderate risk of rip currents along north- and east-facing reefs. Surf is comprised of an easterly trade swell and a secondary northwest swell that will eventually shift to the north around Thursday night. Distant Typhoon Cempaka may generate an elevated, long-period north swell over the next few days, potentially leading to hazardous surf and a high risk of rip currents along north-facing reefs on Friday. $$ GUZ001-MPZ001>003-112245- Guam-Rota-Tinian-Saipan- 536 PM ChST Wed Nov 11 2026 ...HAZARDOUS SURF POSSIBLE ALONG NORTH-FACING REEFS STARTING FRIDAY... 36 hour Surf Zone Forecast for the Marianas from 600 PM Wednesday through 600 AM Friday .TONIGHT... Rip Current Risk.....Moderate *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............5 to 7 feet. South facing reefs............2 to 4 feet. West facing reefs............2 to 4 feet. Swell/Period Primary swell................East at 4 to 5 feet. Primary period...............9 seconds. Secondary swell..............Northwest at around 3 feet. Secondary period.............11 seconds. Water Temperature CDAT SST Analysis..........84 Degrees. Winds...............Northeast at 10 to 15 mph. .THURSDAY... Rip Current Risk.....Moderate *. Surf Height North facing reefs............3 to 5 feet. East facing reefs............4 to 6 feet. South facing reefs............2 to 4 feet. West facing reefs............2 to 4 feet. Swell/Period Primary swell................East at around 4 feet. Primary period...............9 seconds. Secondary swell..............Northwest at around 3 feet. Secondary period.............10 seconds. Max Heat Index.........Around 100. Winds...............Northeast at 10 to 15 mph. .THURSDAY NIGHT... Rip Current Risk.....Moderate *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............4 to 6 feet. South facing reefs............2 to 4 feet. West facing reefs............1 to 3 feet. Swell/Period Primary swell................East at around 4 feet. Primary period...............9 seconds. Secondary swell..............North at around 4 feet. Secondary period.............11 seconds. Winds...............Northeast at 10 to 15 mph. Tide information for the next 36 hours... At Apra Harbor, Guam... High tide 2.0 feet at 7:36 PM Wednesday Low tide -0.5 feet at 2:59 AM Thursday High tide 2.1 feet at 10:24 AM Thursday Low tide 1.5 feet at 3:42 PM Thursday High tide 2.0 feet at 8:04 PM Thursday Low tide -0.4 feet at 3:35 AM Friday At Rota Island... High tide 1.9 feet at 7:33 PM Wednesday Low tide -0.5 feet at 2:53 AM Thursday High tide 1.9 feet at 10:21 AM Thursday Low tide 1.4 feet at 3:36 PM Thursday High tide 1.8 feet at 8:01 PM Thursday Low tide -0.4 feet at 3:29 AM Friday At Tinian Island... High tide 1.5 feet at 7:34 PM Wednesday Low tide -0.2 feet at 2:36 AM Thursday High tide 1.5 feet at 10:22 AM Thursday Low tide 0.5 feet at 3:19 PM Thursday High tide 1.4 feet at 8:02 PM Thursday Low tide -0.1 feet at 3:12 AM Friday At Tanapag Harbor, Saipan... High tide 2.0 feet at 7:29 PM Wednesday Low tide -0.2 feet at 3:09 AM Thursday High tide 2.1 feet at 10:57 AM Thursday Low tide 1.7 feet at 3:45 PM Thursday High tide 1.9 feet at 7:51 PM Thursday Low tide -0.2 feet at 3:43 AM Friday * Low Risk of rip currents - Strong currents can still occur near jetties and reef channels. Always have a flotation device with you in the water. Moderate Risk of rip currents - Wave conditions support stronger or more frequent rip currents. Always have a flotation device with you in the water. High Risk of rip currents - Large waves will produce strong rip currents, especially along narrow reefs and beaches. Rip currents will be life threatening. If caught in a rip current, swim parallel to the beach rather than against the current. $$

Tropical cyclone advisory

NWS Guam, issued yesterday 1:55pm

Tropical Cyclone Public Advisory: Typhoon Cempaka (31W)

Typhoon Cempaka (31W). About 900 miles north-northwest of Guam. Maximum sustained winds 110 mph. Moving east-northeast, 75 degrees at 15 mph. Watches and warnings: None.

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BULLETIN Typhoon Cempaka (31W) Advisory Number 16 National Weather Service Tiyan GU WP312026 155 PM ChST Tue Nov 10 2026 ...TYPHOON CEMPAKA MOVING EAST-NORTHEAST ACROSS THE OPEN PACIFIC... CHANGES WITH THIS ADVISORY -------------------------- None. WATCHES AND WARNINGS -------------------- None. SUMMARY OF 100 PM CHST...0300 UTC...INFORMATION ----------------------------------------------- Location...25.3N 139.0E About 150 miles west-northwest of Iwo To About 620 miles northwest of Agrihan About 660 miles northwest of Pagan About 690 miles northwest of Alamagan About 825 miles north-northwest of Saipan About 900 miles north-northwest of Guam Maximum sustained winds...110 mph Present movement...east-northeast...75 degrees at 15 mph DISCUSSION AND OUTLOOK ---------------------- At 100 PM CHST...0300 UTC...the center of Typhoon Cempaka was located near Latitude 25.3 degrees North and Longitude 139.0 degrees East. Cempaka is moving east-northeast at 15 mph. It is expected to maintain this general course with an increase in forward speed through Wednesday. Maximum sustained winds remain at 110 mph. Cempaka is forecast to weaken through tonight. Typhoon force winds extend outward from the center up to 40 miles. Tropical storm force winds extend outward from the center up to 90 miles. NEXT ADVISORY ------------- This will be the last advisory issued by the National Weather Service on Cempaka. $$ Doll

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