Marine Weather and Tide Forecast for San Leon, TX
 | Sunrise 6:25 AM Sunset 8:06 PM Moonrise 11:04 PM Moonset 8:13 AM |
GMZ335 Galveston Bay- 343 Pm Cdt Fri May 16 2025
This afternoon - South winds 10 to 15 knots. Bay waters slightly choppy.
Tonight - South winds 10 to 15 knots. Bay waters 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 - South winds 10 to 15 knots. Bay waters slightly choppy.
Sunday night - Southeast winds 15 to 20 knots. Bay waters choppy.
Monday - South winds 15 to 20 knots. Bay waters choppy.
Monday night - South winds 15 to 20 knots. Bay waters choppy.
Tuesday - South winds around 15 knots. Bay waters slightly choppy to choppy.
Tuesday night - South winds 10 to 15 knots, veering to northwest after midnight. Bay waters slightly choppy, easing to smooth to slightly choppy after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 343 Pm Cdt Fri May 16 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 today 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 may be warranted on Monday.
moderate southerly winds and elevated seas continue today 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 may be warranted on Monday.
7 Day Forecast for Marine Location Near San Leon, TX
NEW! Add second zone forecast
| Eagle Point Click for Map Fri -- 04:49 AM CDT -0.07 feet Low Tide Fri -- 06:26 AM CDT Sunrise Fri -- 09:13 AM CDT Moonset Fri -- 01:56 PM CDT 1.15 feet High Tide Fri -- 08:05 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Eagle Point, Texas, Tide feet
| 12 am |
| 0.6 |
| 1 am |
| 0.4 |
| 2 am |
| 0.2 |
| 3 am |
| 0.1 |
| 4 am |
| -0 |
| 5 am |
| -0.1 |
| 6 am |
| -0 |
| 7 am |
| 0.1 |
| 8 am |
| 0.3 |
| 9 am |
| 0.5 |
| 10 am |
| 0.7 |
| 11 am |
| 0.9 |
| 12 pm |
| 1.1 |
| 1 pm |
| 1.1 |
| 2 pm |
| 1.2 |
| 3 pm |
| 1.1 |
| 4 pm |
| 1.1 |
| 5 pm |
| 1.1 |
| 6 pm |
| 1.1 |
| 7 pm |
| 1.1 |
| 8 pm |
| 1 |
| 9 pm |
| 1 |
| 10 pm |
| 0.9 |
| 11 pm |
| 0.8 |
| Bolivar Roads Click for Map Fri -- 04:26 AM CDT 0.00 knots Slack Fri -- 06:26 AM CDT Sunrise Fri -- 08:11 AM CDT 1.83 knots Max Flood Fri -- 09:13 AM CDT Moonset Fri -- 04:17 PM CDT -0.00 knots Slack Fri -- 08:05 PM CDT Sunset Fri -- 11:38 PM CDT -2.00 knots Max Ebb Tide / Current data from XTide NOT FOR NAVIGATION |
Bolivar Roads, Texas Current, knots
| 12 am |
| -1.9 |
| 1 am |
| -1.7 |
| 2 am |
| -1.4 |
| 3 am |
| -0.9 |
| 4 am |
| -0.3 |
| 5 am |
| 0.4 |
| 6 am |
| 1.1 |
| 7 am |
| 1.6 |
| 8 am |
| 1.8 |
| 9 am |
| 1.8 |
| 10 am |
| 1.6 |
| 11 am |
| 1.3 |
| 12 pm |
| 1.1 |
| 1 pm |
| 0.9 |
| 2 pm |
| 0.7 |
| 3 pm |
| 0.4 |
| 4 pm |
| 0.1 |
| 5 pm |
| -0.2 |
| 6 pm |
| -0.5 |
| 7 pm |
| -0.9 |
| 8 pm |
| -1.2 |
| 9 pm |
| -1.6 |
| 10 pm |
| -1.8 |
| 11 pm |
| -2 |
Area Discussion for Houston/Galveston, TX
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FXUS64 KHGX 161913 AFDHGX
Area Forecast Discussion National Weather Service Houston/Galveston TX 213 PM CDT Fri May 16 2025
New SHORT TERM
SHORT TERM
(This evening through Saturday Night)
Issued at 205 PM CDT Fri May 16 2025
Forecast for this afternoon remains on track, as many of you can feel right now with the Texas summer heat. Upper 80s/90s highs with heat indices breaking the triple digits are still on the tap for this afternoon, threatening to break daily high temperature records and several locations. Looking past the heat nowcast, we'll also be monitoring the position of a cold front, dry line and sfc trough currently over central Texas. The consensus of CAM guidance keeps these boundaries closer to the Dallas/Fort Worth area, with convection firing off along the line and tracking east/east northeast. Guidance suggest that this activity could clip our northeastern counties this evening (7PM-12AM window) as activity broadly starts to fizzle out. SPC respectively has the northern fringes of our CWA under a Marginal (level 1/5) Risk for severe weather this evening. Overall the severe weather threat looks incredibly slim, especially given how late in the evening it is, though non-zero and at least worth a mention. If we get a "Little supercell that could" then we'd have to watch for damaging winds and hail, though again this threat is very slim and unlikely to manifest.
Ridging across the Gulf of America amplifies with mid level heights progged to rise to 587-590 dam. NAEFS mean 500mb heights and 850mb temperatures are progged to still be over the 90th climatological percentile, potent enough to keep these abnormally hot conditions in place throughout the day. Short range guidance is still pessimistic on the notion of mixing, even after several days of dewpoints mixing into the 60s. More interestingly, 925mb dewpoints in the HRRR show some moisture convergence near Central/East Texas. Greater low level moisture around this area seems to at least partially mitigate the effects of mixing, though not completely. Regardless, we're still starting down highs in the upper 80s/90s and heat indices in the upper 90s to triple digits.
The combination of WBGT and heat risk indicate that this level of heat will primarily impact groups more sensitive to heat, though it would be wise to practice heat safety regardless if you plan to spend an extended amount of time outside. In addition, make sure to look before you lock your car.
03
LONG TERM
(Sunday through next Thursday)
Issued at 1251 PM CDT Fri May 16 2025
Deep mid/upper ridge remains in place over the Gulf into early next week, keeping the hotter than normal regime in place through Tuesday. So expect more humid conditions with highs mostly in the 90s until then. However, the flow pattern over Texas will be in flux by Tuesday thanks to a mid/upper trough over W CONUS ejecting eastward into central CONUS. The resulting surface low over the Central Plains should push eastward towards the Ohio River Valley. But the trailing cold front is expected to push southward towards the Gulf. Question is, will capping limit convection or could we have enough lift on Tuesday to foment convection (showers/thunderstorms)? Another question I have for Tuesday is how hot could SE Texas temperatures get? A well mixed LL veering wind profile could enhance WAA, giving Tuesday's temperatures a boost. Maybe we could see upper 90s in some areas. The post frontal air mass appears less humid. At a minimum, that would equate to cooler nights and less stifling days. But some guidance suggests would could see a more substantial cool down than what we have in our official forecast. We shall see if we are so lucky.
Self
AVIATION
(18Z TAF Issuance)
Issued at 1205 PM CDT Fri May 16 2025
MVFR CIGS should scatter & lift over the next hour, ushering in VFR conditions throughout the rest of the daytime. Gusty south winds continue this afternoon, easing and becoming light this evening. MVFR CIGS should slowly fill in from the coast during the late afternoon/tonight, with IFR CIGS looking more feasible during the early morning hours of Saturday (compared to this morning), mostly in areas south of I-10. Isolated patchy fog will be possible as well during the pre-dawn hours. CIGS/Fog will scatter, lift and clear during the mid to late morning hours as gusty winds resume.
03
MARINE
Issued at 1251 PM CDT Fri May 16 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.
CLIMATE
Issued at 255 AM CDT Fri May 16 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 16th High Temperature Records --------------------------------- - College Station: 95F (2003)
- Houston/IAH: 94F (2022)
- Houston/Hobby: 94F (2022)
- Palacios: 88F (2010)
- Galveston: 90F (2022)
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) 76 95 75 96 / 20 20 20 0 Houston (IAH) 77 95 78 93 / 0 0 0 0 Galveston (GLS) 77 87 78 85 / 10 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk until 7 PM CDT this evening for TXZ436>439.
GM...Small Craft Should Exercise Caution until 1 AM CDT Saturday for GMZ370-375.
Area Forecast Discussion National Weather Service Houston/Galveston TX 213 PM CDT Fri May 16 2025
New SHORT TERM
SHORT TERM
(This evening through Saturday Night)
Issued at 205 PM CDT Fri May 16 2025
Forecast for this afternoon remains on track, as many of you can feel right now with the Texas summer heat. Upper 80s/90s highs with heat indices breaking the triple digits are still on the tap for this afternoon, threatening to break daily high temperature records and several locations. Looking past the heat nowcast, we'll also be monitoring the position of a cold front, dry line and sfc trough currently over central Texas. The consensus of CAM guidance keeps these boundaries closer to the Dallas/Fort Worth area, with convection firing off along the line and tracking east/east northeast. Guidance suggest that this activity could clip our northeastern counties this evening (7PM-12AM window) as activity broadly starts to fizzle out. SPC respectively has the northern fringes of our CWA under a Marginal (level 1/5) Risk for severe weather this evening. Overall the severe weather threat looks incredibly slim, especially given how late in the evening it is, though non-zero and at least worth a mention. If we get a "Little supercell that could" then we'd have to watch for damaging winds and hail, though again this threat is very slim and unlikely to manifest.
Ridging across the Gulf of America amplifies with mid level heights progged to rise to 587-590 dam. NAEFS mean 500mb heights and 850mb temperatures are progged to still be over the 90th climatological percentile, potent enough to keep these abnormally hot conditions in place throughout the day. Short range guidance is still pessimistic on the notion of mixing, even after several days of dewpoints mixing into the 60s. More interestingly, 925mb dewpoints in the HRRR show some moisture convergence near Central/East Texas. Greater low level moisture around this area seems to at least partially mitigate the effects of mixing, though not completely. Regardless, we're still starting down highs in the upper 80s/90s and heat indices in the upper 90s to triple digits.
The combination of WBGT and heat risk indicate that this level of heat will primarily impact groups more sensitive to heat, though it would be wise to practice heat safety regardless if you plan to spend an extended amount of time outside. In addition, make sure to look before you lock your car.
03
LONG TERM
(Sunday through next Thursday)
Issued at 1251 PM CDT Fri May 16 2025
Deep mid/upper ridge remains in place over the Gulf into early next week, keeping the hotter than normal regime in place through Tuesday. So expect more humid conditions with highs mostly in the 90s until then. However, the flow pattern over Texas will be in flux by Tuesday thanks to a mid/upper trough over W CONUS ejecting eastward into central CONUS. The resulting surface low over the Central Plains should push eastward towards the Ohio River Valley. But the trailing cold front is expected to push southward towards the Gulf. Question is, will capping limit convection or could we have enough lift on Tuesday to foment convection (showers/thunderstorms)? Another question I have for Tuesday is how hot could SE Texas temperatures get? A well mixed LL veering wind profile could enhance WAA, giving Tuesday's temperatures a boost. Maybe we could see upper 90s in some areas. The post frontal air mass appears less humid. At a minimum, that would equate to cooler nights and less stifling days. But some guidance suggests would could see a more substantial cool down than what we have in our official forecast. We shall see if we are so lucky.
Self
AVIATION
(18Z TAF Issuance)
Issued at 1205 PM CDT Fri May 16 2025
MVFR CIGS should scatter & lift over the next hour, ushering in VFR conditions throughout the rest of the daytime. Gusty south winds continue this afternoon, easing and becoming light this evening. MVFR CIGS should slowly fill in from the coast during the late afternoon/tonight, with IFR CIGS looking more feasible during the early morning hours of Saturday (compared to this morning), mostly in areas south of I-10. Isolated patchy fog will be possible as well during the pre-dawn hours. CIGS/Fog will scatter, lift and clear during the mid to late morning hours as gusty winds resume.
03
MARINE
Issued at 1251 PM CDT Fri May 16 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.
CLIMATE
Issued at 255 AM CDT Fri May 16 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 16th High Temperature Records --------------------------------- - College Station: 95F (2003)
- Houston/IAH: 94F (2022)
- Houston/Hobby: 94F (2022)
- Palacios: 88F (2010)
- Galveston: 90F (2022)
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) 76 95 75 96 / 20 20 20 0 Houston (IAH) 77 95 78 93 / 0 0 0 0 Galveston (GLS) 77 87 78 85 / 10 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk until 7 PM CDT this evening for TXZ436>439.
GM...Small Craft Should Exercise Caution until 1 AM CDT Saturday for GMZ370-375.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| EPTT2 - 8771013 - Eagle Point, TX | 0 mi | 51 min | SSE 11G | 85°F | 82°F | 29.84 | ||
| GRRT2 | 12 mi | 51 min | SE 7G | 81°F | 83°F | 29.82 | ||
| GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 13 mi | 51 min | S 9.9G | 80°F | 80°F | 29.83 | ||
| GTOT2 | 14 mi | 51 min | S 5.1G | 83°F | 81°F | 29.82 | ||
| MGPT2 - 8770613 - Morgans Point, TX | 14 mi | 51 min | SE 12G | 83°F | 80°F | 29.83 | ||
| RLOT2 - 8770971 - Rollover Pass, TX | 22 mi | 51 min | SSE 8.9G | 80°F | 29.85 | |||
| NCHT2 - 8770777 - Manchester, TX | 25 mi | 51 min | SW 8.9G | 87°F | 80°F | 29.80 | ||
| HIST2 | 29 mi | 51 min | SSE 6G | 82°F | 29.85 | |||
| LUIT2 | 30 mi | 51 min | SE 8.9G | 82°F | 80°F | 29.84 | ||
| KGVW | 31 mi | 26 min | 81°F | 77°F | ||||
| 42035 - GALVESTON 22NM East of Galveston, TX | 32 mi | 41 min | SE 7.8G | 79°F | 80°F | 29.83 | 77°F | |
| FPST2 | 42 mi | 51 min | SE 8G | 81°F | 82°F | 29.82 |
Wind History for Eagle Point, TX
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KGLS SCHOLES INTL AT GALVESTON,TX | 15 sm | 29 min | SE 09 | 10 sm | Overcast | 84°F | 81°F | 89% | 29.86 | |
| KEFD ELLINGTON,TX | 16 sm | 27 min | S 17 | 10 sm | Mostly Cloudy | 90°F | 75°F | 63% | 29.81 | |
| KLVJ PEARLAND RGNL,TX | 17 sm | 28 min | S 10 | 9 sm | Mostly Cloudy | 88°F | 75°F | 66% | 29.84 | |
| KHOU WILLIAM P HOBBY,TX | 22 sm | 28 min | SSE 12 | 10 sm | Partly Cloudy | 90°F | 75°F | 63% | 29.82 |
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 southern planes -- texas
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Houston/Galveston, TX,
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