Last Update: 507 PM ChST Mon Oct 19 2026

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Tiyan, GU Local Forecast Office

9NM SSE Rota GU

Marine Zone Forecast

...SMALL CRAFT ADVISORY IS CANCELLED...

Tonight
Southeast wind 10 to 20 kt with gusts to 30 kt near heavier showers. Seas 7 to 9 ft. Wave detail: south 8 ft at 9 seconds, southeast 4 ft at 4 seconds and northeast 3 ft at 9 seconds. Isolated thunderstorms. Numerous showers with locally heavy showers possible this evening, then scattered showers near midnight.
Tuesday
East wind 5 to 15 kt. Seas 6 to 8 ft. Wave detail: southwest 7 ft at 9 seconds, northeast 3 ft at 9 seconds and east 3 ft at 4 seconds.
Tuesday Night
Northeast wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: west 6 ft at 9 seconds, northeast 3 ft at 9 seconds and northeast 2 ft at 4 seconds. Scattered showers.
Wednesday
Northeast wind 10 kt. Seas 5 to 7 ft. Wave detail: west 6 ft at 10 seconds, northeast 4 ft at 9 seconds and northeast 2 ft at 4 seconds.
Wednesday Night
Northeast wind 10 kt. Seas 5 to 7 ft. Wave detail: west 5 ft at 10 seconds, northeast 4 ft at 9 seconds and northeast 2 ft at 4 seconds.
Thursday
Northeast wind 10 to 15 kt. Seas 6 to 8 ft. Wave detail: west 5 ft at 11 seconds, northeast 5 ft at 10 seconds and northeast 3 ft at 4 seconds. A chance of showers.
Friday
East wind 5 to 10 kt. Seas 6 to 8 ft. Wave detail: northeast 6 ft at 8 seconds, west 5 ft at 11 seconds and east 2 ft at 4 seconds. A chance of showers.
Saturday
East wind 5 to 10 kt. Seas 6 to 8 ft. Wave detail: northeast 6 ft at 10 seconds, west 4 ft at 12 seconds and east 2 ft at 4 seconds. A chance of showers with a slight chance of thunderstorms.



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507 PM ChST Mon Oct 19 2026
 
 

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