Coastal Waters Forecast for Galveston Bay (GMZ335) (Text-Only)
NWS Forecast for: Galveston Bay (GMZ335)
Issued by: National Weather Service Houston, TX
Last Update: 632 AM CDT Thu May 21 2026


Today: East winds around 10 knots, becoming south this afternoon. Bay waters slightly choppy. Showers and thunderstorms. Wind could exceed 30 knots in the vicinity of thunderstorms.

Tonight: South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms.

Friday: South winds around 10 knots. Bay waters smooth to slightly choppy. Showers and thunderstorms likely.

Friday Night: South winds around 10 knots. Bay waters smooth to slightly choppy.

Saturday: Southeast winds 10 to 15 knots. Bay waters slightly choppy. Showers and thunderstorms likely.

Saturday Night: Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Showers and thunderstorms.

Sunday: South winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon. Showers and thunderstorms.

Sunday Night: Southeast winds 5 to 10 knots. Bay waters smooth. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight.

Monday: Southeast winds 5 to 10 knots. Bay waters smooth. A chance of thunderstorms. Showers likely, mainly in the morning.

Monday Night: Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms after midnight.

winds and waves higher in and near thunderstorms.







Zone Forecast: Galveston Bay (GMZ335)

Visit your local NWS office at: https://www.weather.gov/hgx