Last Update: 1132 AM CST Mon Feb 16 2026

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Brownsville, TX Local Forecast Office

46NM ENE Port Isabel TX

Marine Zone Forecast


Tonight
Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave detail: east 3 feet at 4 seconds and southeast 2 feet at 7 seconds.
Tuesday
South winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 6 seconds.
Tuesday Night
South winds 15 to 20 knots. Seas 3 to 5 feet. Wave detail: southeast 5 feet at 5 seconds.
Wednesday
South winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 5 feet. Wave detail: south 5 feet at 6 seconds.
Wednesday Night
South winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: south 5 feet at 6 seconds.
Thursday
South winds 15 to 20 knots, diminishing to 10 to 15 knots late in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: south 5 feet at 6 seconds.
Thursday Night
Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Friday
Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Friday Night
Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Saturday
East winds around 10 knots, becoming northeast in the afternoon. Seas 4 to 5 feet.
Saturday Night
Northeast winds 10 to 15 knots. Seas 4 to 5 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight.



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1132 AM CST Mon Feb 16 2026
 
 

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