NWS Marine Forecast


   GMZ300-280815-  207 PM CDT Sun Sep 27 2026    .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM  including Galveston and Matagorda Bays.    Light winds and low seas will persist into Tuesday. Southeast  winds will increase heading into midweek allowing for building  seas. Small Craft Advisories will likely be required. Periods of  unsettled weather are anticipated during the second half of the  week as deep moisture interacts with a very slow moving upper  level trough in the vicinity.    $$
   GMZ335-280815-  Galveston Bay-  207 PM CDT Sun Sep 27 2026    THIS AFTERNOON  Southeast winds 5 to 10 knots. Bay waters  smooth.  TONIGHT  South winds 5 to 10 knots. Bay waters smooth.  MONDAY  Southeast winds 5 to 10 knots. Bay waters smooth.  MONDAY NIGHT  Southeast winds 10 to 15 knots. Bay waters  slightly choppy.  TUESDAY  Southeast winds 10 to 15 knots. Bay waters slightly  choppy.  TUESDAY NIGHT  Southeast winds 15 to 20 knots. Bay waters  choppy.  WEDNESDAY  Southeast winds 15 to 20 knots. Bay waters choppy. A  chance of showers. A chance of thunderstorms in the afternoon.  WEDNESDAY NIGHT  Southeast winds around 20 knots, increasing to  20 to 25 knots after midnight. Bay waters choppy, increasing to  rough after midnight. A chance of showers after midnight.  THURSDAY  South winds 15 to 20 knots, becoming southeast around  15 knots in the afternoon. Bay waters choppy, diminishing to  slightly choppy in the afternoon. Showers likely with a chance of  thunderstorms.  THURSDAY NIGHT  Southeast winds 10 to 15 knots. Bay waters  slightly choppy. Showers likely with a chance of thunderstorms.    Winds and waves higher in and near thunderstorms.    $$