Last Update: 1131 AM CDT Mon Aug 17 2026

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Brownsville, TX Local Forecast Office

17NM NE Port Isabel TX

Marine Zone Forecast


Tonight
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 6 seconds.
Tuesday
South winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 5 seconds and east 1 foot at 8 seconds.
Tuesday Night
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds and east 1 foot at 9 seconds.
Wednesday
South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds and southeast 2 feet at 8 seconds.
Wednesday Night
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds.
Thursday
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 5 seconds.
Thursday Night
Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Friday
South winds 10 to 15 knots. Seas 2 to 3 feet.
Friday Night
South winds 10 to 15 knots. Seas 2 to 3 feet.
Saturday
South winds 5 to 10 knots becoming southeast in the afternoon. Seas 2 to 3 feet.
Saturday Night
South winds 10 to 15 knots. Seas 2 to 4 feet.



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1131 AM CDT Mon Aug 17 2026
 
 

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