National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Fog/Mist

77°F

25°C

Humidity 94%
Wind Speed S 3 mph
Barometer 29.77 in (1007.4 mb)
Dewpoint 75°F (24°C)
Visibility 6.00 mi
Heat Index78°F (26°C)
Last update 3 Sep 3:54 am ChST
Extended Forecast for

Santa Rosa GU

High Surf Advisory September 3, 06:00am until September 4, 04:00pm
Click here for hazard details and duration
High Surf Advisory

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 75. West southwest wind around 9 mph. Chance of precipitation is 50%.

    Low: 75 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. West southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 50%.

    High: 84 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 75. Southwest wind 15 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

  • Friday

    Friday: Partly sunny, with a high near 86. West southwest wind 16 to 18 mph, with gusts as high as 25 mph.

    High: 86 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 77. West southwest wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 77 °F

    Mostly Cloudy

  • Saturday

    Saturday: Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 76.

    Low: 76 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 75. West southwest wind around 9 mph. Chance of precipitation is 50%.
Thursday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. West southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 50%.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 75. Southwest wind 15 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 86. West southwest wind 16 to 18 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 77. West southwest wind 11 to 15 mph, with gusts as high as 21 mph.
Saturday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 75.
Sunday
A chance of showers. Partly sunny, with a high near 85.
Sunday Night
Mostly cloudy, with a low around 76.
Labor Day
Partly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 76.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 76.
Wednesday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:05 pm ChST Sep 2, 2026
Forecast Valid:
4am ChST Sep 3, 2026-6pm ChST Sep 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation