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Agana GU

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:05 pm ChST Aug 16, 2025
Forecast Valid: 6am ChST Aug 17, 2025-6pm ChST Aug 23, 2025

Today

E wind 6 to 10 kt. Scattered showers and thunderstorms. Waves 1 ft or less.

Tonight

E wind 7 to 9 kt. Mostly cloudy. Waves 1 ft or less.

Monday

E wind 8 to 11 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

E wind 8 to 12 kt. Scattered showers and thunderstorms. Waves 1 ft or less.

Tuesday

E wind 6 to 10 kt. Scattered showers and thunderstorms. Waves 1 ft or less.

Tuesday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming E around 6 kt in the morning. Partly sunny. Waves 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.

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