Marine Weather and Tide Forecast for Bolivar Peninsula, TX
![]() | Sunrise 6:18 AM Sunset 8:22 PM Moonrise 12:05 AM Moonset 12:16 PM |
GMZ335 Galveston Bay- 1241 Am Cdt Wed Jun 18 2025
.small craft should exercise caution - .
Rest of tonight - South winds 15 to 20 knots. Bay waters choppy.
Wednesday - South winds 15 knots. Bay waters slightly choppy to choppy.
Wednesday night - South winds 10 to 15 knots. Bay waters slightly choppy.
Thursday - South winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms.
Thursday night - South winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms early in the evening.
Friday - South winds around 10 knots. Bay waters smooth to slightly choppy.
Friday night - South winds around 10 knots. Bay waters smooth to slightly choppy.
Saturday - South winds 10 to 15 knots. Bay waters slightly choppy.
Saturday night - Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Sunday - Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Sunday night - Southeast winds 10 to 15 knots. Bay waters slightly choppy.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1241 Am Cdt Wed Jun 18 2025
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
onshore flow is expected for the next several days. Winds and seas will be a touch higher through the day Wednesday before settling down later in the week. Isolated to scattered showers and Thunderstorms are a daily possibility, though chances generally increase early next week.
onshore flow is expected for the next several days. Winds and seas will be a touch higher through the day Wednesday before settling down later in the week. Isolated to scattered showers and Thunderstorms are a daily possibility, though chances generally increase early next week.
7 Day Forecast for Marine Location Near Bolivar Peninsula CDP, TX

NEW! Add second zone forecast
Gilchrist Click for Map Wed -- 01:05 AM CDT Moonrise Wed -- 06:18 AM CDT Sunrise Wed -- 07:35 AM CDT 0.29 feet Low Tide Wed -- 01:15 PM CDT Moonset Wed -- 02:10 PM CDT 1.09 feet High Tide Wed -- 02:20 PM CDT Last Quarter Wed -- 08:20 PM CDT Sunset Wed -- 09:48 PM CDT 0.49 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Gilchrist, East Bay, Texas, Tide feet
12 am |
0.8 |
1 am |
0.8 |
2 am |
0.7 |
3 am |
0.7 |
4 am |
0.6 |
5 am |
0.5 |
6 am |
0.4 |
7 am |
0.3 |
8 am |
0.3 |
9 am |
0.4 |
10 am |
0.5 |
11 am |
0.7 |
12 pm |
0.9 |
1 pm |
1 |
2 pm |
1.1 |
3 pm |
1.1 |
4 pm |
1 |
5 pm |
0.9 |
6 pm |
0.7 |
7 pm |
0.6 |
8 pm |
0.5 |
9 pm |
0.5 |
10 pm |
0.5 |
11 pm |
0.5 |
Galveston Bay Entrance Click for Map Wed -- 01:06 AM CDT Moonrise Wed -- 03:14 AM CDT -1.30 knots Max Ebb Wed -- 06:19 AM CDT Sunrise Wed -- 07:31 AM CDT 0.00 knots Slack Wed -- 10:43 AM CDT 1.22 knots Max Flood Wed -- 01:16 PM CDT Moonset Wed -- 02:10 PM CDT -0.00 knots Slack Wed -- 02:20 PM CDT Last Quarter Wed -- 05:45 PM CDT -1.06 knots Max Ebb Wed -- 08:20 PM CDT Sunset Wed -- 10:04 PM CDT 0.00 knots Slack Wed -- 11:26 PM CDT 0.28 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |   |
Galveston Bay Entrance, Texas Current, knots
12 am |
-0.8 |
1 am |
-1.1 |
2 am |
-1.2 |
3 am |
-1.3 |
4 am |
-1.3 |
5 am |
-1 |
6 am |
-0.7 |
7 am |
-0.2 |
8 am |
0.2 |
9 am |
0.7 |
10 am |
1.1 |
11 am |
1.2 |
12 pm |
0.9 |
1 pm |
0.5 |
2 pm |
0.1 |
3 pm |
-0.3 |
4 pm |
-0.7 |
5 pm |
-1 |
6 pm |
-1.1 |
7 pm |
-1 |
8 pm |
-0.8 |
9 pm |
-0.4 |
10 pm |
-0 |
11 pm |
0.3 |
Area Discussion for Houston/Galveston, TX
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FXUS64 KHGX 181124 AFDHGX
Area Forecast Discussion National Weather Service Houston/Galveston TX 624 AM CDT Wed Jun 18 2025
New AVIATION
SYNOPSIS
Issued at 1232 AM CDT Wed Jun 18 2025
- Looking like a fairly "normal" summertime weather pattern in the area with mostly seasonable temperatures.
- Expect some diurnally driven showers/storms each day, mostly the isolated to scattered variety. Not everyone will see rain each day.
- Winds, seas, rip current risk may be somewhat higher than normal today, but should gradually trend back down a bit after that.
DISCUSSION
Issued at 1232 AM CDT Wed Jun 18 2025
Mid level ridge generally centered over Baja will gradually expand/move eastward into the Southern Plains later in the week, Tennessee Valley this weekend, then into northeast US early next week. Locally, we'll be situated under the ridge this week which should still allow for for some isolated/scattered, mainly daytime, shower and thunderstorm activity. Other than the seabreeze/baybreeze there aren't really any large scale focusing mechanisms for organized convection. Heading into the early/mid parts of next week with the ridge set up well to our east, we could see a longer deeper fetch of higher Gulf PWs set up and possibly lead to slightly higher coverage and/or rain chances. 47
SHORT TERM
LONG TERM
AVIATION
(12Z TAF Issuance)
Issued at 608 AM CDT Wed Jun 18 2025
MVFR CIGs should clear out over the next few hours with gusty southerly winds and VFR conditions prevailing throughout the daytime. Very light streamer showers will be possible near the coast early today. During the afternoon, a few thunderstorms could develop around the houston metro area. Short range models have backed off on storms for today, and while PoPs have trended downwards, a few stray thunderstorms aren't completely out of the question still. Any convection should taper off by the late afternoon/evening. Winds relax overnight as MVFR CIGs once again fill in across our northern 3 TAF sites (KCLL, KUTS, KCXO).
03
MARINE
Issued at 1232 AM CDT Wed Jun 18 2025
Moderate onshore flow prevails today with seas in the 3-5ft range.
Will check-in with the beach patrol in the morning, but wouldn't be surprised if we need to go with a high rip current statement during the day Thursday. The pressure gradient slightly weakens Friday into the weekend and would anticipate typical summertime marine conditions with 10-15kt sse winds 3-4ft seas. There will be some isolated-scattered storms around at times, but better chances probably early to mid next week. 47
PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 92 76 92 75 / 10 0 20 0 Houston (IAH) 91 77 92 77 / 20 0 30 0 Galveston (GLS) 88 81 88 81 / 20 10 40 10
HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...Small Craft Should Exercise Caution until 3 PM CDT this afternoon for GMZ330-335-350-355-370-375.
Area Forecast Discussion National Weather Service Houston/Galveston TX 624 AM CDT Wed Jun 18 2025
New AVIATION
SYNOPSIS
Issued at 1232 AM CDT Wed Jun 18 2025
- Looking like a fairly "normal" summertime weather pattern in the area with mostly seasonable temperatures.
- Expect some diurnally driven showers/storms each day, mostly the isolated to scattered variety. Not everyone will see rain each day.
- Winds, seas, rip current risk may be somewhat higher than normal today, but should gradually trend back down a bit after that.
DISCUSSION
Issued at 1232 AM CDT Wed Jun 18 2025
Mid level ridge generally centered over Baja will gradually expand/move eastward into the Southern Plains later in the week, Tennessee Valley this weekend, then into northeast US early next week. Locally, we'll be situated under the ridge this week which should still allow for for some isolated/scattered, mainly daytime, shower and thunderstorm activity. Other than the seabreeze/baybreeze there aren't really any large scale focusing mechanisms for organized convection. Heading into the early/mid parts of next week with the ridge set up well to our east, we could see a longer deeper fetch of higher Gulf PWs set up and possibly lead to slightly higher coverage and/or rain chances. 47
SHORT TERM
LONG TERM
AVIATION
(12Z TAF Issuance)
Issued at 608 AM CDT Wed Jun 18 2025
MVFR CIGs should clear out over the next few hours with gusty southerly winds and VFR conditions prevailing throughout the daytime. Very light streamer showers will be possible near the coast early today. During the afternoon, a few thunderstorms could develop around the houston metro area. Short range models have backed off on storms for today, and while PoPs have trended downwards, a few stray thunderstorms aren't completely out of the question still. Any convection should taper off by the late afternoon/evening. Winds relax overnight as MVFR CIGs once again fill in across our northern 3 TAF sites (KCLL, KUTS, KCXO).
03
MARINE
Issued at 1232 AM CDT Wed Jun 18 2025
Moderate onshore flow prevails today with seas in the 3-5ft range.
Will check-in with the beach patrol in the morning, but wouldn't be surprised if we need to go with a high rip current statement during the day Thursday. The pressure gradient slightly weakens Friday into the weekend and would anticipate typical summertime marine conditions with 10-15kt sse winds 3-4ft seas. There will be some isolated-scattered storms around at times, but better chances probably early to mid next week. 47
PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 92 76 92 75 / 10 0 20 0 Houston (IAH) 91 77 92 77 / 20 0 30 0 Galveston (GLS) 88 81 88 81 / 20 10 40 10
HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...Small Craft Should Exercise Caution until 3 PM CDT this afternoon for GMZ330-335-350-355-370-375.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
RLOT2 - 8770971 - Rollover Pass, TX | 3 mi | 47 min | S 9.9G | 30.02 | ||||
HIST2 | 12 mi | 47 min | S 11G | 30.01 | ||||
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 13 mi | 47 min | S 16G | 85°F | 29.99 | |||
GTOT2 | 17 mi | 47 min | S 8G | 87°F | 29.99 | |||
42035 - GALVESTON 22NM East of Galveston, TX | 19 mi | 35 min | SSE 12G | 83°F | 84°F | 30.00 | 78°F | |
EPTT2 - 8771013 - Eagle Point, TX | 19 mi | 47 min | S 12G | 85°F | 29.98 | |||
GRRT2 | 22 mi | 47 min | SSE 8.9G | 85°F | 29.99 | |||
KGVW | 25 mi | 40 min | SSE 12 | 86°F | 75°F | |||
MGPT2 - 8770613 - Morgans Point, TX | 26 mi | 47 min | SSE 6G | 84°F | 30.01 | |||
TXPT2 | 40 mi | 47 min | S 9.9G | 86°F | 30.00 | |||
LUIT2 | 41 mi | 47 min | SSE 9.9G | 83°F | 30.01 | |||
NCHT2 - 8770777 - Manchester, TX | 41 mi | 47 min | SSW 8.9G | 83°F | 29.99 | |||
PORT2 - 8770475 - Port Arthur, TX | 42 mi | 47 min | S 9.9G | 81°F | 30.01 |
Wind History for Rollover Pass, TX
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Airport Reports
Link to 1 hour of 5 minute data for KGLS
Terminal Aerodrome Forecast (TAF) for KGLS
Wind History Graph: GLS
(wind in knots)GEOS Local Image of SouthCentralPlains
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Houston/Galveston, TX,

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