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.

Partly Cloudy

84°F

29°C

Humidity 80%
Wind Speed SW 14 G 23 mph
Barometer 29.83 in (1007.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 12 Aug 7:54 am ChST
Extended Forecast for

Agana Station GU

High Surf Advisory August 12, 08:57am until August 13, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory August 12, 08:57am until August 13, 04:00pm

    NOW until 4:00pm Thu

    High Surf Advisory

  • Today

    High: 88 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers. Partly cloudy, with a low around 78. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 88. West southwest wind 11 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 79. West southwest wind 10 to 14 mph, with gusts as high as 18 mph.

    Low: 79 °F

    Isolated
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 87. West southwest wind 11 to 16 mph, with gusts as high as 22 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 77.

    Low: 77 °F

    Mostly Cloudy

Detailed Forecast

Today
Isolated showers. Mostly sunny, with a high near 88. West southwest wind 15 to 17 mph, with gusts as high as 23 mph.
Tonight
Isolated showers. Partly cloudy, with a low around 78. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Isolated showers. Mostly sunny, with a high near 88. West southwest wind 11 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Isolated showers. Partly cloudy, with a low around 79. West southwest wind 10 to 14 mph, with gusts as high as 18 mph.
Friday
Mostly sunny, with a high near 87. West southwest wind 11 to 16 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 77.
Sunday
A chance of showers. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 76.
Monday
A chance of showers. Partly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 77.
Tuesday
Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Agana Station GU
 13.47°N 144.79°E
Last Update:
6:05 am ChST Aug 12, 2026
Forecast Valid:
8am ChST Aug 12, 2026-6pm ChST Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation