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Last Update: 223 AM CDT Sun Sep 20 2026
For More Weather Information:
46NM ENE Port Isabel TX
Marine Zone Forecast
Today
Southeast winds 5 to 10 knots, becoming east this afternoon. Seas 3 to 4 feet. Wave detail: east 3 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms this morning, then a slight chance of showers and thunderstorms early this afternoon.
Tonight
Southeast winds around 10 knots, becoming 5 to 10 knots early in the morning. Seas 2 to 4 feet. Wave detail: east 3 feet at 6 seconds.
Monday
Southeast winds 5 to 10 knots, becoming east in the afternoon. Seas 2 to 3 feet. Wave detail: east 2 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon.
Monday Night
East winds 10 to 15 knots, becoming southeast 5 to 10 knots early in the morning. Seas 2 to 3 feet. Wave detail: east 2 feet at 5 seconds.
Tuesday
East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: east 2 feet at 5 seconds and east 1 foot at 8 seconds. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon.
Tuesday Night
East winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 4 seconds and east 1 foot at 9 seconds. A slight chance of thunderstorms. A chance of showers early in the evening, then a slight chance of showers in the late evening and overnight.
Wednesday
East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon.
Wednesday Night
East winds 10 to 15 knots. Seas 3 to 4 feet. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight.
Thursday
East winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms.
Thursday Night
East winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms.
winds and seas higher in and near thunderstorms.
winds and seas higher in and near thunderstorms.
Winds and seas higher in and near thunderstorms.
Additional Forecasts and Information
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