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Last Update: 418 PM AST Thu Oct 15 2026

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San Juan, PR Local Forecast Office

57NM SSW Mayaguez PR

Marine Zone Forecast


Tonight
East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds and northeast 2 feet at 8 seconds. Scattered showers this evening. Isolated showers after midnight, then scattered showers late.
Friday
East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 5 seconds and northeast 2 feet at 8 seconds. Scattered showers in the afternoon.
Friday Night
East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 5 seconds and north 1 foot at 8 seconds.
Saturday
East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas around 3 feet. Wave detail: east 3 feet at 5 seconds and north 1 foot at 8 seconds. Scattered showers in the morning.
Saturday Night
East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast 3 feet at 6 seconds and north 3 feet at 12 seconds.
Sunday
East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: north 3 feet at 12 seconds and east 2 feet at 5 seconds.
Sunday Night
East winds 5 to 10 knots. Seas around 3 feet.
Monday
East winds 5 to 10 knots. Seas around 3 feet.
Monday Night
East winds 5 to 10 knots. Seas around 3 feet.
Tuesday
East winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet.
Tuesday Night
East winds 5 to 10 knots. Seas 4 to 6 feet, occasionally to 8 feet.



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418 PM AST Thu Oct 15 2026
 
 

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