Marine Weather and Tide Forecast for Surfside Beach, TX
 | Sunrise 6:27 AM Sunset 8:08 PM Moonrise 11:48 PM Moonset 9:15 AM |
GMZ355 Expires:202505180315;;677273 Fzus54 Khgx 171426 Cwfhgx
coastal waters forecast for texas national weather service houston/galveston tx 926 am cdt Sat may 17 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.
gmz350-355-180315- coastal waters from freeport to matagorda ship channel tx out 20 nm-coastal waters from high island to freeport tx out 20 nm- 926 am cdt Sat may 17 2025
Tonight - Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 4 feet at 7 seconds.
Sunday - South winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: southeast 4 feet at 6 seconds.
Sunday night - Southeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: southeast 5 feet at 6 seconds.
Monday - Southeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave detail: southeast 5 feet at 6 seconds.
Monday night - South winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: southeast 5 feet at 7 seconds.
Tuesday - South winds 15 to 20 knots, easing to around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: southeast 5 feet at 7 seconds.
Tuesday night - South winds around 10 knots, backing to northeast after midnight. Seas 3 to 5 feet.
Wednesday - Northeast winds around 10 knots. Seas 3 to 4 feet.
Wednesday night - Northeast winds 10 to 15 knots. Seas around 3 feet.
Thursday - Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Thursday night - Southeast winds around 10 knots. Seas around 3 feet in the evening, then around 2 feet or less.
coastal waters forecast for texas national weather service houston/galveston tx 926 am cdt Sat may 17 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.
gmz350-355-180315- coastal waters from freeport to matagorda ship channel tx out 20 nm-coastal waters from high island to freeport tx out 20 nm- 926 am cdt Sat may 17 2025
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 926 Am Cdt Sat May 17 2025
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
moderate southerly winds and elevated seas continue, warranting caution flags through late tonight for the offshore waters.
light to occasionally moderate onshore flow will persist through at least early next week. Caution flags will be needed at times. The persistent onshore flow will lead to an elevated rip current risk through the weekend.
moderate southerly winds and elevated seas continue, warranting caution flags through late tonight for the offshore waters.
light to occasionally moderate onshore flow will persist through at least early next week. Caution flags will be needed at times. The persistent onshore flow will lead to an elevated rip current risk through the weekend.
7 Day Forecast for Marine Location Near Surfside Beach, TX
NEW! Add second zone forecast
| Christmas Point Click for Map Sat -- 12:03 AM CDT Moonrise Sat -- 03:50 AM CDT -0.04 feet Low Tide Sat -- 06:27 AM CDT Sunrise Sat -- 10:15 AM CDT Moonset Sat -- 01:32 PM CDT 1.03 feet High Tide Sat -- 08:06 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Christmas Point, Christmas Bay, Texas, Tide feet
| 12 am |
| 0.4 |
| 1 am |
| 0.2 |
| 2 am |
| 0.1 |
| 3 am |
| -0 |
| 4 am |
| -0 |
| 5 am |
| 0 |
| 6 am |
| 0.1 |
| 7 am |
| 0.2 |
| 8 am |
| 0.4 |
| 9 am |
| 0.6 |
| 10 am |
| 0.8 |
| 11 am |
| 0.9 |
| 12 pm |
| 1 |
| 1 pm |
| 1 |
| 2 pm |
| 1 |
| 3 pm |
| 1 |
| 4 pm |
| 1 |
| 5 pm |
| 1 |
| 6 pm |
| 1 |
| 7 pm |
| 0.9 |
| 8 pm |
| 0.9 |
| 9 pm |
| 0.8 |
| 10 pm |
| 0.8 |
| 11 pm |
| 0.6 |
| Alligator Point Click for Map Sat -- 12:03 AM CDT Moonrise Sat -- 03:52 AM CDT -0.04 feet Low Tide Sat -- 06:27 AM CDT Sunrise Sat -- 10:14 AM CDT Moonset Sat -- 01:39 PM CDT 1.03 feet High Tide Sat -- 08:06 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Alligator Point, West Bay, Texas, Tide feet
| 12 am |
| 0.4 |
| 1 am |
| 0.2 |
| 2 am |
| 0.1 |
| 3 am |
| -0 |
| 4 am |
| -0 |
| 5 am |
| -0 |
| 6 am |
| 0.1 |
| 7 am |
| 0.2 |
| 8 am |
| 0.4 |
| 9 am |
| 0.6 |
| 10 am |
| 0.7 |
| 11 am |
| 0.9 |
| 12 pm |
| 1 |
| 1 pm |
| 1 |
| 2 pm |
| 1 |
| 3 pm |
| 1 |
| 4 pm |
| 1 |
| 5 pm |
| 1 |
| 6 pm |
| 1 |
| 7 pm |
| 0.9 |
| 8 pm |
| 0.9 |
| 9 pm |
| 0.8 |
| 10 pm |
| 0.8 |
| 11 pm |
| 0.7 |
Area Discussion for Houston/Galveston, TX
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FXUS64 KHGX 171034 AFDHGX
Area Forecast Discussion National Weather Service Houston/Galveston TX 534 AM CDT Sat May 17 2025
New AVIATION
SHORT TERM
(Today through Sunday Night)
Issued at 304 AM CDT Sat May 17 2025
Well we may not have broken any record high maximum temperatures yesterday (a few sites fell one degree short of tying their records), but we didn't leave empty handed. ALL FIVE climate sites (College Station, Houston/Bush Airport, Houston/Hobby Airport, Palacios, and Galveston) broke their records for daily high minimum temperatures. Would you believe that the LOW temperature at Houston/Bush Airport yesterday was 81°F?! The normal HIGH temperature is 87°F! The hot and humid conditions will continue throughout the weekend with a mid level high remaining centered over the Gulf. A frontal boundary remains to our northwest and we did see some convection develop off of this line, but by the time it made it into Houston County it was just a couple of isolated showers...but there technically was rain in Southeast Texas! Expecting another similar scenario later this afternoon/evening as the dry line becomes better defined out west.
We'll see another round of convection develop and drift towards the Brazos Valley/the Piney Woods as an embedded shortwave provides some additional lift along the boundary
Again
this'll just be a matter of will anything survive long enough to make it here, and the 00Z CAM guidance is a bit more enthusiastic about more than one city up north getting some measurable rainfall. The unfortunate part is that the rain won't occur during the heat of the day when we need it the most for some relief.
Speaking of heat, 850mb temperatures will remain firmly in the 90th percentile through the weekend as southwesterly flow aloft prevails.
Onshore flow will keep dew points elevated in the mid 70s (we've been mixing out into the upper 60s/low 70s in the afternoon though)
and PW values peaking in the 1.5-1.8" range (right around the 75th to 90th percentile). The dew points mixing out along with a decent southerly breeze will help us out a bit in terms of keeping us out of a Heat Advisory, but still expect high temperatures in the low to mid 90s with heat indices reaching into the triple digits both today and Sunday. These won't be a slam dunk for breaking records, but we'll at least be near 'em.
The HeatRisk map through Sunday outlines most of Southeast Texas in a moderate to major risk for heat-related impacts (levels 2&3 out of 4), so be sure to take the proper precautions to keep you and your loved ones (including your pets) safe from the heat. I'm sure there's a lot of you with outdoor plans this weekend, so be sure to stay hydrated, take plenty of breaks from the heat, LOOK before you LOCK your vehicle, and to know the signs of heat-related illnesses.
Temperatures during the overnight hours won't offer much relief as we remain at least near record territory on that end as well with lows mainly in the upper 70s...and based on last night low 80s aren't out of the question. No rain in the forecast for Sunday, so after tonight our rain chances are back to essentially zero. They'll be back soon though...see the long term section below for more.
Batiste
LONG TERM
(Monday through Friday)
Issued at 304 AM CDT Sat May 17 2025
Mid/Upper level ridging will remain parked over the Gulf through the early part of next week. This will continue the streak of hotter than normal daytime temperatures through Tuesday. Increasing humidity combined with hot temperatures will result in heat indices in the 100-107F range.
Tuesday will feature a transition in the pattern as a mid/upper trough over the western CONUS tracks eastward. Low pressure at the surface will move across the Great Plains and across the Ohio River Valley, ejecting a cold front in the process. This front is projected to move southward towards the Gulf. This may trigger convection; however, there remains uncertainty on how capping will impact convective initiation and whether or not there is enough lift to initiate upward movement of air.
In any case, the hot and humid conditions look to continue through at least Tuesday with the potential for conditions to be drier behind the FROPA (how much less humid we will experience varies between guidance).
Adams
AVIATION
(12Z TAF Issuance)
Issued at 534 AM CDT Sat May 17 2025
A mixture of MVFR/VFR ceilings this morning along with a few spots of reduced visibilities due to patchy fog. Expect VFR ceilings to return to all sites between 15-17Z. Winds will be mainly southeasterly today with 10-15 kt sustained winds and gusts up to 20-25 kt through the afternoon. MVFR ceilings will filter back in from south to north after 00Z this evening. Some brief periods of IFR ceilings cannot be ruled out, especially after 06Z. The 00Z-06Z timeframe is also when there's a low but non zero chance that some lingering convection could make it near CLL/UTS. The probabilities of this occuring are far too low for a TAF mention.
Batiste
MARINE
Issued at 304 AM CDT Sat May 17 2025
Generally light to moderate onshore flow is expected over the next several days. A steepening pressure gradient is expected to result in somewhat higher winds on Monday into Tuesday, especially at night and during the morning hours. Caution flags may be warranted.
Considering the long fetch, we cannot rule out seas reaching Small Craft criteria over Gulf on Monday and Tuesday. Winds may shift more north to northeast by Wednesday and Thursday thanks to a passing frontal boundary.
Self
CLIMATE
Issued at 304 AM CDT Sat May 17 2025
With multiple days of near-record to record-breaking heat possible going into early next week, here's a look at the daily high temperature records through Tuesday (May 20th).
May 17th High Temperature Records --------------------------------- - College Station: 96F (1925)
- Houston/IAH: 96F (2018)
- Houston/Hobby: 94F (2018)
- Palacios: 93F (2003)
- Galveston: 90F (2020)
May 18th High Temperature Records --------------------------------- - College Station: 98F (2022)
- Houston/IAH: 95F (2022)
- Houston/Hobby: 94F (2022)
- Palacios: 89F (2022)
- Galveston: 90F (2022)
May 19th High Temperature Records --------------------------------- - College Station: 94F (2022)
- Houston/IAH: 95F (2003)
- Houston/Hobby: 94F (2008)
- Palacios: 89F (2024)
- Galveston: 90F (2022)
May 20th High Temperature Records --------------------------------- - College Station: 96F (2022)
- Houston/IAH: 95F (2020)
- Houston/Hobby: 95F (2008)
- Palacios: 95F (1943)
- Galveston: 91F (2022)
Batiste
PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 95 76 96 77 / 20 20 0 0 Houston (IAH) 95 78 93 78 / 0 0 0 0 Galveston (GLS) 86 79 84 79 / 0 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk through late tonight for TXZ436>439.
GM...None.
Area Forecast Discussion National Weather Service Houston/Galveston TX 534 AM CDT Sat May 17 2025
New AVIATION
SHORT TERM
(Today through Sunday Night)
Issued at 304 AM CDT Sat May 17 2025
Well we may not have broken any record high maximum temperatures yesterday (a few sites fell one degree short of tying their records), but we didn't leave empty handed. ALL FIVE climate sites (College Station, Houston/Bush Airport, Houston/Hobby Airport, Palacios, and Galveston) broke their records for daily high minimum temperatures. Would you believe that the LOW temperature at Houston/Bush Airport yesterday was 81°F?! The normal HIGH temperature is 87°F! The hot and humid conditions will continue throughout the weekend with a mid level high remaining centered over the Gulf. A frontal boundary remains to our northwest and we did see some convection develop off of this line, but by the time it made it into Houston County it was just a couple of isolated showers...but there technically was rain in Southeast Texas! Expecting another similar scenario later this afternoon/evening as the dry line becomes better defined out west.
We'll see another round of convection develop and drift towards the Brazos Valley/the Piney Woods as an embedded shortwave provides some additional lift along the boundary
Again
this'll just be a matter of will anything survive long enough to make it here, and the 00Z CAM guidance is a bit more enthusiastic about more than one city up north getting some measurable rainfall. The unfortunate part is that the rain won't occur during the heat of the day when we need it the most for some relief.
Speaking of heat, 850mb temperatures will remain firmly in the 90th percentile through the weekend as southwesterly flow aloft prevails.
Onshore flow will keep dew points elevated in the mid 70s (we've been mixing out into the upper 60s/low 70s in the afternoon though)
and PW values peaking in the 1.5-1.8" range (right around the 75th to 90th percentile). The dew points mixing out along with a decent southerly breeze will help us out a bit in terms of keeping us out of a Heat Advisory, but still expect high temperatures in the low to mid 90s with heat indices reaching into the triple digits both today and Sunday. These won't be a slam dunk for breaking records, but we'll at least be near 'em.
The HeatRisk map through Sunday outlines most of Southeast Texas in a moderate to major risk for heat-related impacts (levels 2&3 out of 4), so be sure to take the proper precautions to keep you and your loved ones (including your pets) safe from the heat. I'm sure there's a lot of you with outdoor plans this weekend, so be sure to stay hydrated, take plenty of breaks from the heat, LOOK before you LOCK your vehicle, and to know the signs of heat-related illnesses.
Temperatures during the overnight hours won't offer much relief as we remain at least near record territory on that end as well with lows mainly in the upper 70s...and based on last night low 80s aren't out of the question. No rain in the forecast for Sunday, so after tonight our rain chances are back to essentially zero. They'll be back soon though...see the long term section below for more.
Batiste
LONG TERM
(Monday through Friday)
Issued at 304 AM CDT Sat May 17 2025
Mid/Upper level ridging will remain parked over the Gulf through the early part of next week. This will continue the streak of hotter than normal daytime temperatures through Tuesday. Increasing humidity combined with hot temperatures will result in heat indices in the 100-107F range.
Tuesday will feature a transition in the pattern as a mid/upper trough over the western CONUS tracks eastward. Low pressure at the surface will move across the Great Plains and across the Ohio River Valley, ejecting a cold front in the process. This front is projected to move southward towards the Gulf. This may trigger convection; however, there remains uncertainty on how capping will impact convective initiation and whether or not there is enough lift to initiate upward movement of air.
In any case, the hot and humid conditions look to continue through at least Tuesday with the potential for conditions to be drier behind the FROPA (how much less humid we will experience varies between guidance).
Adams
AVIATION
(12Z TAF Issuance)
Issued at 534 AM CDT Sat May 17 2025
A mixture of MVFR/VFR ceilings this morning along with a few spots of reduced visibilities due to patchy fog. Expect VFR ceilings to return to all sites between 15-17Z. Winds will be mainly southeasterly today with 10-15 kt sustained winds and gusts up to 20-25 kt through the afternoon. MVFR ceilings will filter back in from south to north after 00Z this evening. Some brief periods of IFR ceilings cannot be ruled out, especially after 06Z. The 00Z-06Z timeframe is also when there's a low but non zero chance that some lingering convection could make it near CLL/UTS. The probabilities of this occuring are far too low for a TAF mention.
Batiste
MARINE
Issued at 304 AM CDT Sat May 17 2025
Generally light to moderate onshore flow is expected over the next several days. A steepening pressure gradient is expected to result in somewhat higher winds on Monday into Tuesday, especially at night and during the morning hours. Caution flags may be warranted.
Considering the long fetch, we cannot rule out seas reaching Small Craft criteria over Gulf on Monday and Tuesday. Winds may shift more north to northeast by Wednesday and Thursday thanks to a passing frontal boundary.
Self
CLIMATE
Issued at 304 AM CDT Sat May 17 2025
With multiple days of near-record to record-breaking heat possible going into early next week, here's a look at the daily high temperature records through Tuesday (May 20th).
May 17th High Temperature Records --------------------------------- - College Station: 96F (1925)
- Houston/IAH: 96F (2018)
- Houston/Hobby: 94F (2018)
- Palacios: 93F (2003)
- Galveston: 90F (2020)
May 18th High Temperature Records --------------------------------- - College Station: 98F (2022)
- Houston/IAH: 95F (2022)
- Houston/Hobby: 94F (2022)
- Palacios: 89F (2022)
- Galveston: 90F (2022)
May 19th High Temperature Records --------------------------------- - College Station: 94F (2022)
- Houston/IAH: 95F (2003)
- Houston/Hobby: 94F (2008)
- Palacios: 89F (2024)
- Galveston: 90F (2022)
May 20th High Temperature Records --------------------------------- - College Station: 96F (2022)
- Houston/IAH: 95F (2020)
- Houston/Hobby: 95F (2008)
- Palacios: 95F (1943)
- Galveston: 91F (2022)
Batiste
PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 95 76 96 77 / 20 20 0 0 Houston (IAH) 95 78 93 78 / 0 0 0 0 Galveston (GLS) 86 79 84 79 / 0 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk through late tonight for TXZ436>439.
GM...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| LUIT2 | 4 mi | 56 min | S 8.9G | 82°F | 80°F | 29.92 | ||
| FPST2 | 9 mi | 56 min | S 12G | 80°F | 80°F | 29.91 | ||
| GRRT2 | 24 mi | 56 min | S 8G | 81°F | 83°F | 29.91 | ||
| GTOT2 | 28 mi | 56 min | SSW 8.9G | 82°F | 83°F | 29.90 | ||
| GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 33 mi | 56 min | SSW 11G | 80°F | 80°F | 29.91 | ||
| EPTT2 - 8771013 - Eagle Point, TX | 34 mi | 56 min | SSW 8G | 85°F | 82°F | 29.93 | ||
| KGVW | 34 mi | 39 min | 81°F | 75°F | ||||
| 42035 - GALVESTON 22NM East of Galveston, TX | 43 mi | 54 min | S 9.7G | 79°F | 79°F | 4 ft | 29.91 | 76°F |
| EMAT2 | 45 mi | 56 min | SSE 9.9G | 81°F | 83°F | 29.91 | ||
| MGPT2 - 8770613 - Morgans Point, TX | 46 mi | 56 min | ESE 7G | 82°F | 81°F | 29.92 | ||
| NCHT2 - 8770777 - Manchester, TX | 48 mi | 56 min | SW 5.1G | 83°F | 80°F | 29.90 | ||
| RLOT2 - 8770971 - Rollover Pass, TX | 48 mi | 56 min | S 6G | 82°F | 29.94 |
Wind History for Galveston Pier 21, TX
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KLBX
Terminal Aerodrome Forecast (TAF) for KLBX
Wind History Graph: LBX
(wind in knots)
GEOS Local Image of southern planes -- texas
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Houston/Galveston, TX,
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