Last Update: 1255 AM CST Mon Nov 10 2025

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Brownsville, TX Local Forecast Office

10NM N Port Isabel TX

Marine Zone Forecast


Today
North winds 20 to 25 knots. Rough on the bay.
Tonight
Northeast winds 10 to 15 knots, becoming north around 5 knots after midnight. A moderate chop on the bay, diminishing to smooth after midnight.
Tuesday
Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Light chop on the bay, increasing to a moderate chop in the afternoon.
Tuesday Night
South winds 15 to 20 knots. Choppy on the bay.
Wednesday
South winds 15 to 20 knots. Choppy on the bay.
Wednesday Night
South winds 10 to 15 knots. A moderate chop on the bay.
Thursday
Southeast winds 10 to 15 knots. A moderate chop on the bay.
Thursday Night
Southeast winds 10 to 15 knots, becoming south 15 to 20 knots after midnight. A moderate chop on the bay, increasing to choppy after midnight.
Friday
Southeast winds 15 to 20 knots. Choppy on the bay.
Friday Night
Southeast winds 20 to 25 knots. Rough on the bay.



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1255 AM CST Mon Nov 10 2025
 
 

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