Last Update: 135 AM CDT Sat Apr 18 2026
For More Weather Information:
46NM ENE Port Isabel TX
Marine Zone Forecast
Today
Southeast winds 10 to 15 knots, becoming east late this afternoon. Seas 4 to 5 feet. Wave detail: southeast 5 feet at 7 seconds.
Tonight
East winds around 10 knots, becoming northeast after midnight, then increasing to 15 to 20 knots early in the morning. Seas 3 to 4 feet. Wave detail: southeast 4 feet at 7 seconds and southeast 2 feet at 3 seconds. A slight chance of showers in the evening. A slight chance of thunderstorms in the late evening and overnight. Showers after midnight.
Sunday
Northeast winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: northeast 7 feet at 7 seconds and north 2 feet at 4 seconds. A slight chance of thunderstorms. Showers.
Sunday Night
Northeast winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: northeast 7 feet at 7 seconds. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers and thunderstorms after midnight.
Monday
East winds around 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: east 5 feet at 7 seconds. Showers likely.
Monday Night
East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: east 5 feet at 7 seconds. A chance of thunderstorms. Showers likely early in the evening, then a chance of showers in the late evening and overnight.
Tuesday
Southeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers with a slight chance of thunderstorms.
Tuesday Night
Southeast winds 10 to 15 knots. Seas 4 to 5 feet. 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
Southeast winds around 10 knots. Seas 3 to 4 feet. A slight chance of thunderstorms early in the morning. A slight chance of showers.
Wednesday Night
Southeast winds 10 to 15 knots. Seas 3 to 5 feet. A slight chance of showers early in the evening.
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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