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.

Fair

80°F

27°C

Humidity 90%
Wind Speed SW 10 G 20 mph
Barometer 29.73 in (1006.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 5 Oct 4:54 am ChST
Extended Forecast for

Tiyan GU

High Surf Advisory October 5, 05:33am until October 5, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory October 5, 05:33am until October 5, 04:00pm

    NOW until 4:00pm Mon

    High Surf Advisory

  • Overnight

    Low: 78 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers. Partly sunny, with a high near 87. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers and
    Breezy

  • Monday Night

    Monday Night: Scattered showers. Mostly cloudy, with a low around 78. Southwest wind 13 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. West southwest wind 8 to 14 mph. Chance of precipitation is 50%.

    Low: 78 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely. Cloudy, with a low around 78. Chance of precipitation is 60%.

    Low: 78 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 78. Southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
Scattered showers. Partly sunny, with a high near 87. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 78. Southwest wind 13 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. West southwest wind 8 to 14 mph. Chance of precipitation is 50%.
Wednesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 86. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Cloudy, with a low around 78. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 86.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 78.
Friday
A chance of showers. Partly sunny, with a high near 87.
Friday Night
A chance of showers. Mostly cloudy, with a low around 78.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 78.
Sunday
A chance of showers. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tiyan GU
 13.49°N 144.81°E
Last Update:
6:06 pm ChST Oct 4, 2026
Forecast Valid:
5am ChST Oct 5, 2026-6pm ChST Oct 11, 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