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Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM Marine Forecast

Updated 1:28am CDT Aug 27, 2026
Zone Map
Today
Southwest winds 5 to 10 knots, becoming south early this afternoon, then increasing to 5 to 10 knots late. Seas around 2 feet this morning, then around 2 feet or less. Wave Detail: South 2 feet at 4 seconds, becoming south 1 foot at 4 seconds.
Tonight
South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds.
Friday
Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the morning.
Friday Night
Southeast winds 5 to 10 knots, becoming south after midnight. Seas around 2 feet or less. Wave Detail: Southeast 1 foot at 5 seconds. A slight chance of showers after midnight.
Saturday
Southeast winds around 5 knots, becoming east in the afternoon. Seas around 2 feet or less. Wave Detail: Southeast 1 foot at 5 seconds. A slight chance of showers and thunderstorms in the morning.
Saturday Night
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast 1 foot at 8 seconds.
Sunday
South winds around 5 knots, becoming southeast in the afternoon. Seas around 2 feet.
Sunday Night
Southeast winds 10 to 15 knots. Seas around 2 feet.
Monday
South winds 5 to 10 knots. Seas around 2 feet.
Monday Night
Southeast winds 10 to 15 knots. Seas around 2 feet.