Last Update: 348 PM ChST Thu Jul 23 2026

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Tiyan, GU Local Forecast Office

23NM WSW San Jose (Tinian) GU

Marine Zone Forecast


Tonight
Northeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: northeast 2 ft at 4 seconds, west to southwest 2 ft at 9 seconds, east 2 ft at 9 seconds and southeast 2 ft at 10 seconds. scattered showers with isolated thunderstorms.
Friday
Northeast wind 10 kt. Seas 3 to 4 ft. Wave detail: west to southwest 2 ft at 9 seconds, northeast 2 ft at 4 seconds, east 2 ft at 9 seconds and southeast 2 ft at 10 seconds. scattered showers with isolated thunderstorms.
Friday Night
East wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: west to southwest 2 ft at 9 seconds, east 2 ft at 4 seconds, east 2 ft at 9 seconds and southeast 2 ft at 10 seconds. scattered showers with isolated thunderstorms.
Saturday
Southeast wind 5 kt. Seas around 3 ft. Wave detail: west to southwest 2 ft at 9 seconds, east 2 ft at 9 seconds and southeast 2 ft at 10 seconds. Scattered showers with isolated thunderstorms.
Saturday Night
Southeast wind 5 to 10 kt. Seas around 3 ft. Wave detail: west 3 ft at 9 seconds, southeast 2 ft at 4 seconds and east 2 ft at 9 seconds.
Sunday Through Monday
East wind 5 to 15 kt. Seas around 3 ft. Wave detail: east 3 ft at 4 seconds, west 2 ft at 9 seconds and east 2 ft at 9 seconds.
Tuesday
East wind 10 kt. Seas around 3 ft. Wave detail: east 3 ft at 8 seconds, east 2 ft at 4 seconds and west 2 ft at 9 seconds. A slight chance of thunderstorms.



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348 PM ChST Thu Jul 23 2026
 
 

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