Last Update: 234 AM CDT Sun Sep 6 2026

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Brownsville, TX Local Forecast Office

10NM N Port Isabel TX

Marine Zone Forecast


Today
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots this afternoon. A moderate chop on the bay.
Tonight
Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Light chop on the bay.
Monday
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots late in the afternoon. Light chop on the bay, increasing to a moderate chop late in the afternoon.
Monday Night
Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Light chop on the bay.
Tuesday
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay.
Tuesday Night
Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Light chop on the bay.
Wednesday
Southeast winds around 5 knots, becoming 5 to 10 knots in the afternoon. Light chop on the bay. A slight chance of showers and thunderstorms.
Wednesday Night
Southeast winds 5 to 10 knots, becoming south after midnight. Light chop on the bay. A slight chance of showers and thunderstorms early in the evening.
Thursday
South winds around 5 knots, becoming southeast in the afternoon. Smooth on the bay, increasing to light chop in the afternoon.
Thursday Night
Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop early in the morning.

winds and waves higher in and near thunderstorms.




Winds and waves higher in and near thunderstorms.
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234 AM CDT Sun Sep 6 2026
 
 

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