Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 251230
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
630 AM CST Tue Nov 25 2025

Upper Texas coastal waters from High Island to the Matagorda Ship
Channel out 60 nautical miles including Galveston and Matagorda
Bays.

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the
average highest 10 percent of the waves.

GMZ300-260115-
630 AM CST Tue Nov 25 2025

.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.

Light northwest to north winds through this evening. A push of
cool, dry air will move into the waters late tonight and early
Wednesday morning ushering in northeast winds around 20 to 25
knots with gusts of around 30 knots along with building seas.
Small Craft Advisories will be required. Onshore winds resume and
increase later in the week.

$$

GMZ330-335-260115-
Matagorda Bay-Galveston Bay-
630 AM CST Tue Nov 25 2025

.TODAY...West winds 5 to 10 knots, becoming north late. Bay
waters smooth. Patchy fog early this morning.
.TONIGHT...North winds around 15 knots, increasing to 15 to
20 knots after midnight. Bay waters slightly choppy, increasing
to choppy after midnight.
.WEDNESDAY...North winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Bay waters choppy, diminishing to
slightly choppy in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up
to 20 knots. Bay waters slightly choppy.
.THURSDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...East winds around 15 knots, becoming southeast 15 to
20 knots in the afternoon. Bay waters slightly choppy, increasing
to choppy in the afternoon.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers after midnight.
.SATURDAY...South winds 15 to 20 knots. Bay waters choppy. A
chance of showers in the morning, then showers likely in the
afternoon.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots, becoming east
after midnight. Bay waters choppy. Showers likely with a chance
of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-260115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
630 AM CST Tue Nov 25 2025

.TODAY...Southwest winds 10 to 15 knots, becoming northwest
around 10 knots late this morning and early afternoon, then
becoming northeast. Seas 2 to 4 feet. Wave Detail: South 4 feet
at 6 seconds. A slight chance of showers and thunderstorms early
this morning.
.TONIGHT...Northeast winds around 15 knots, becoming north 20 to
25 knots after midnight. Seas 2 to 4 feet. Wave Detail: Northeast
3 feet at 3 seconds and south 2 feet at 6 seconds.
.WEDNESDAY...Northeast winds 20 to 25 knots, diminishing to
around 20 knots in the afternoon. Seas 3 to 5 feet. Wave Detail:
Northeast 4 feet at 5 seconds and southeast 2 feet at 6 seconds.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at
5 seconds.
.THURSDAY...Northeast winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East
4 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at
6 seconds.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet.
.FRIDAY NIGHT...Southeast winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers after midnight.
.SATURDAY...South winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. A chance of showers in the morning, then
showers likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
6 feet, occasionally to 8 feet. Showers likely.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-260115-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-Waters from High Island to Freeport TX from 20 to 60 NM-
630 AM CST Tue Nov 25 2025

.TODAY...Southwest winds 10 to 15 knots with gusts up to
20 knots, becoming northwest around 10 knots early this
afternoon, then becoming north late. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms early this morning, then a slight chance of showers
and thunderstorms late this morning and early afternoon.
.TONIGHT...Northeast winds around 15 knots, increasing to 20 to
25 knots after midnight. Seas 3 to 4 feet. Wave Detail: Northeast
3 feet at 4 seconds and south 3 feet at 6 seconds.
.WEDNESDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 6 feet at 6 seconds and southeast 2 feet at 6 seconds.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up
to 25 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at
7 seconds.
.THURSDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet. Wave Detail: Northeast 5 feet at
6 seconds.
.THURSDAY NIGHT...East winds around 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at
6 seconds.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.FRIDAY NIGHT...Southeast winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of showers after midnight.
.SATURDAY...South winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. A chance of showers in the morning, then
showers likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 6 to
7 feet, occasionally to 9 feet. Showers likely.

Winds and seas higher in and near thunderstorms.

$$