Coastal Storm Impacting the Mid-Atlantic; Heavy Rain and Below Average Temperatures Over the Plains

A coastal storm will bring widespread rain, gusty winds, shallow coastal flooding, rip currents, large surf and possible areal flooding over the Mid-Atlantic region into Wednesday. Heavy rains and thunderstorms, some severe, persist across the Plains. Above average temperatures expected across much of the CONUS, except over the Plains. Read More >

Hazardous Weather Conditions

Last Update: 422 PM AST Tue Sep 16 2025

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San Juan, PR Local Forecast Office

51NM N San Juan PR

Marine Zone Forecast


Tonight
East winds around 15 knots with gusts up to 25 knots. Seas around 5 feet. Wave detail: east 5 feet at 8 seconds and north 1 foot at 8 seconds. Scattered showers. Isolated thunderstorms late this evening and overnight.
Wednesday
East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 6 feet. Wave detail: east 5 feet at 8 seconds and northwest 1 foot at 10 seconds. Numerous showers.
Wednesday Night
East winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet. Wave detail: east 6 feet at 8 seconds and northwest 1 foot at 9 seconds. Numerous showers, mainly in the evening.
Thursday
East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave detail: east 5 feet at 8 seconds and northwest 1 foot at 8 seconds. Scattered showers.
Thursday Night
East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave detail: east 4 feet at 8 seconds and northwest 1 foot at 8 seconds. Scattered showers in the evening, then numerous showers after midnight.
Friday
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 northeast 2 feet at 11 seconds. Scattered showers in the morning.
Friday Night
East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet. Scattered showers.
Saturday
East winds 5 to 10 knots. Seas 4 to 6 feet.
Saturday Night
Northeast winds 5 to 10 knots. Seas 4 to 6 feet. Scattered showers.
Sunday
Northeast winds around 5 knots. Seas 4 to 5 feet. Scattered showers.
Sunday Night
Northeast winds around 5 knots, becoming southeast around 5 knots after midnight. Seas 4 to 5 feet.

winds and seas higher in and near thunderstorms.




Winds and seas higher in and near thunderstorms.
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422 PM AST Tue Sep 16 2025
 
 

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