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.

A Few Clouds

84°F

29°C

Humidity 80%
Wind Speed SW 9 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 4 Sep 7:54 am ChST
Extended Forecast for

Santa Rosa GU

High Surf Advisory September 4, 08:23am until September 4, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory September 4, 08:23am until September 4, 04:00pm

    NOW until 4:00pm Fri

    High Surf Advisory

  • Today

    High: 86 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. West southwest wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. West wind 10 to 14 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 78. West wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 78 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers and thunderstorms. Partly sunny, with a high near 86. West wind around 6 mph. Chance of precipitation is 40%.

    High: 86 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Labor Day

    Labor Day: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

Detailed Forecast

Today
Scattered showers and thunderstorms. Partly sunny, with a high near 86. West southwest wind 18 to 21 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. West southwest wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Saturday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. West wind 10 to 14 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 78. West wind 6 to 8 mph. Chance of precipitation is 60%.
Sunday
Scattered showers and thunderstorms. Partly sunny, with a high near 86. West wind around 6 mph. Chance of precipitation is 40%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 78.
Labor Day
Partly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 78.
Thursday
A chance of showers. Partly sunny, with a high near 86.
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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 am ChST Sep 4, 2026
Forecast Valid:
8am ChST Sep 4, 2026-6pm ChST Sep 10, 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