Last Update: 409 AM AST Thu Sep 10 2026

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San Juan, PR Local Forecast Office

9NM NNW Charlotte Amalie VI

Marine Zone Forecast


Today
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: east 5 feet at 6 seconds and northeast 1 foot at 11 seconds. Scattered showers with isolated thunderstorms.
Tonight
East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 7 seconds and north 2 feet at 10 seconds. Scattered showers in the evening.
Friday
East winds around 15 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 6 seconds and north 2 feet at 9 seconds.
Friday Night
East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 7 seconds.
Saturday
East winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 7 seconds.
Saturday Night
East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 5 seconds and north 1 foot at 8 seconds.
Sunday
East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.
Sunday Night
East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.
Monday
East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the morning.
Monday Night
East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet.

winds and seas higher in and near thunderstorms.




Winds and seas higher in and near thunderstorms.
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409 AM AST Thu Sep 10 2026
 
 

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