Chart / Forecasts

Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM

GMZ275 · Coastal Waters Forecast · National Weather Service Corpus Christi TX · Issued 144 PM CDT Sat Oct 3 2026
Small Craft Should Exercise Caution
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Forecast
Rest Of Today
Northeast winds around 15 knots with gusts up to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 6 seconds. A chance of showers and thunderstorms.
Tonight
Northeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight.
Sunday
Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds. A chance of thunderstorms. Showers.
Sunday Night
Northeast winds 15 to 20 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Showers with a chance of thunderstorms.
Monday
Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 7 seconds. Showers with a chance of thunderstorms.
Monday Night
Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds. A chance of thunderstorms. Showers.
Tuesday
Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of thunderstorms. Showers likely, mainly in the morning.
Tuesday Night
Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms.
Wednesday
Northeast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms.
Wednesday Night
Northeast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers. A chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms.
Synopsis
Gentle to moderate (BF 3-4) northeasterly flow will strengthen to fresh to strong (BF 5-6) Sunday to Tuesday morning, leading to occasional Small Craft Advisory conditions. Moderate to fresh (BF 4- 5) northeasterly flow will return through the latter half of next week. Scattered to numerous showers and thunderstorms will continue through Tuesday, then low rain chances continue.
Source: National Weather Service Coastal Waters Forecast (CWF), issued 144 PM CDT Sat Oct 3 2026, valid until Sun, 04 Oct 2026 07:15 UTC. Original text · All zones