Last Update: 412 PM AST Tue Nov 11 2025

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San Juan, PR Local Forecast Office

51NM N San Juan PR

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING...

Tonight
East winds 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave detail: east 4 feet at 8 seconds and north 1 foot at 13 seconds. Isolated showers early this evening, then scattered showers late this evening and overnight.
Wednesday
East winds around 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 8 seconds and north 1 foot at 15 seconds. Scattered showers in the morning.
Wednesday Night
East winds around 15 knots with gusts up to 25 knots. Seas 4 to 5 feet, building to 5 to 7 feet after midnight. Wave detail: east 4 feet at 8 seconds and northwest 3 feet at 13 seconds, becoming northwest 6 feet at 13 seconds and east 4 feet at 8 seconds. Scattered showers after midnight.
Thursday
East winds 10 to 15 knots with gusts up to 20 knots. Seas 6 to 7 feet. Wave detail: northwest 6 feet at 12 seconds and east 4 feet at 8 seconds. Scattered showers in the morning.
Thursday Night
East winds 10 to 15 knots with gusts up to 20 knots. Seas 5 to 6 feet. Wave detail: east 4 feet at 8 seconds and northwest 4 feet at 10 seconds.
Friday
East winds 5 to 10 knots. Seas around 5 feet. Wave detail: north 4 feet at 10 seconds and east 3 feet at 8 seconds.
Friday Night
East winds 5 to 10 knots. Seas 4 to 5 feet.
Saturday
Southeast winds around 5 knots, becoming west around 5 knots in the afternoon. Seas around 4 feet.
Saturday Night
North winds around 5 knots. Seas 3 to 4 feet. Scattered showers.
Sunday
Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers in the morning.
Sunday Night
Northeast winds 5 to 10 knots. Seas 4 to 5 feet. Scattered showers.



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412 PM AST Tue Nov 11 2025
 
 

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