Marine Weather and Tide Forecast for Laguna Vista, TX
 | Sunrise 7:19 AM Sunset 7:27 PM Moonrise 4:09 PM Moonset 2:24 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
GMZ130 Laguna Madre From The Port Of Brownsville To The Arroyo Colorado- Laguna Madre From The Arroyo Colorado To 5 Nm North Of Port Mansfield Tx- Laguna Madre From 5 Nm North Of Port Mansfield To Baffin Bay Tx- 147 Pm Cdt Mon Sep 21 2026
Tonight - East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Light chop on the bay.
Tuesday - East winds around 5 knots, becoming northeast in the afternoon, then becoming east 10 to 15 knots late in the afternoon. Smooth on the bay, increasing to light chop in the afternoon, then increasing to a moderate chop late in the afternoon. A slight chance of Thunderstorms.
Tuesday night - East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Light chop on the bay. A slight chance of showers early in the morning.
Wednesday - East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay. A slight chance of Thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.
Wednesday night - East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop after midnight. A slight chance of showers and Thunderstorms early in the evening. A slight chance of showers after midnight.
Thursday - East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay. A chance of showers. A slight chance of Thunderstorms in the afternoon. A chance of Thunderstorms late in the afternoon.
Thursday night - East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop after midnight. A chance of Thunderstorms with a slight chance of showers early in the evening. A slight chance of showers after midnight.
Friday - East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay. A slight chance of Thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.
Friday night - East winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and overnight. A moderate chop on the bay, diminishing to light chop in the late evening and overnight. A slight chance of showers and Thunderstorms early in the evening.
Saturday - East winds 5 to 10 knots. Light chop on the bay. A slight chance of showers. A slight chance of Thunderstorms in the afternoon.
Saturday night - East winds 5 to 10 knots, becoming southeast after midnight. Light chop on the bay. A slight chance of showers and Thunderstorms early in the evening.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ100 147 Pm Cdt Mon Sep 21 2026
Synopsis - Light to moderate winds and slight to moderate seas are forecast to continue through the week. Daily chances for showers and Thunderstorms with rain chances increasing mid to late week.
7 Day Forecast for Marine Location Near Laguna Vista, TX
NEW! Add second zone forecast
| Port Isabel Click for Map Mon -- 02:27 AM CDT Moonset Mon -- 04:04 AM CDT 1.78 feet High Tide Mon -- 07:17 AM CDT Sunrise Mon -- 04:32 PM CDT Moonrise Mon -- 06:39 PM CDT 0.43 feet Low Tide Mon -- 07:26 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Port Isabel, Laguna Madre, Texas, Tide feet
| 12 am |
| 1.4 |
| 1 am |
| 1.6 |
| 2 am |
| 1.7 |
| 3 am |
| 1.8 |
| 4 am |
| 1.8 |
| 5 am |
| 1.8 |
| 6 am |
| 1.7 |
| 7 am |
| 1.7 |
| 8 am |
| 1.6 |
| 9 am |
| 1.6 |
| 10 am |
| 1.5 |
| 11 am |
| 1.4 |
| 12 pm |
| 1.3 |
| 1 pm |
| 1.2 |
| 2 pm |
| 1 |
| 3 pm |
| 0.9 |
| 4 pm |
| 0.7 |
| 5 pm |
| 0.5 |
| 6 pm |
| 0.4 |
| 7 pm |
| 0.4 |
| 8 pm |
| 0.5 |
| 9 pm |
| 0.6 |
| 10 pm |
| 0.8 |
| 11 pm |
| 1.1 |
| ICW Laguna Madre Click for Map Flood direction 333 true Ebb direction 147 true Mon -- 01:09 AM CDT 0.58 knots Max Flood Mon -- 02:27 AM CDT Moonset Mon -- 04:09 AM CDT 0.34 knots Min Flood Mon -- 07:16 AM CDT 0.69 knots Max Flood Mon -- 07:17 AM CDT Sunrise Mon -- 01:03 PM CDT -0.00 knots Slack Mon -- 04:31 PM CDT Moonrise Mon -- 07:22 PM CDT -0.56 knots Max Ebb Mon -- 07:26 PM CDT Sunset Mon -- 10:31 PM CDT 0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
ICW Laguna Madre, Light 69 (depth 4 ft), Texas Current, knots
| 12 am |
| 0.5 |
| 1 am |
| 0.6 |
| 2 am |
| 0.5 |
| 3 am |
| 0.4 |
| 4 am |
| 0.3 |
| 5 am |
| 0.4 |
| 6 am |
| 0.6 |
| 7 am |
| 0.7 |
| 8 am |
| 0.6 |
| 9 am |
| 0.5 |
| 10 am |
| 0.4 |
| 11 am |
| 0.3 |
| 12 pm |
| 0.1 |
| 1 pm |
| 0 |
| 2 pm |
| -0.1 |
| 3 pm |
| -0.2 |
| 4 pm |
| -0.3 |
| 5 pm |
| -0.5 |
| 6 pm |
| -0.5 |
| 7 pm |
| -0.6 |
| 8 pm |
| -0.6 |
| 9 pm |
| -0.5 |
| 10 pm |
| -0.2 |
| 11 pm |
| 0.2 |
FXUS64 KBRO 220331 AFDBRO
Area Forecast Discussion National Weather Service Brownsville TX 1031 PM CDT Mon Sep 21 2026
New DISCUSSION, MARINE
KEY MESSAGES
Updated at 1019 PM CDT Mon Sep 21 2026
- Sustained daily opportunity for rainfall, especially Wednesday and Thursday.
- Continued hot temperatures, but no extremes.
- Elevated risk of rip currents at the local beaches.
DISCUSSION
Issued at 1019 PM CDT Mon Sep 21 2026
Broad 500 mb high pressure will remain the dominant weather feature over Deep South Texas and the Rio Grande Valley through the forecast period. However, the center of the high, positioned generally over east Texas, will produce a more easterly and moist flow off of the neighboring Gulf of America, with precipitable water values hovering near 2 inches. This will have the result of enhancing the daily seabreeze boundary, with isolated to scattered showers and thunderstorms across the BRO CWFA. At this time, the best chances for precipitation are Wednesday and Thursday, with the best combination of moisture and easterly flow.
Temperature-wise, above normal to well above normal values will occur, despite the autumnal equinox officially kicking-off on Tuesday 22 September at 7:04 PM CDT.
Finally, winds and seas along the Lower Texas Coast will produce a low to moderate risk of rip currents at the local beaches through the period.
AVIATION
(00Z TAFS)
Issued at 558 PM CDT Mon Sep 21 2026
VFR will prevail at the aerodromes through the next 24 hours, with light to moderate winds with breezy gusts and clear to partly cloudy skies. Convection is possible, but will be too isolated to warrant a mention in the current issuance of TAFs.
MARINE
Issued at 1019 PM CDT Mon Sep 21 2026
High pressure over the western Gulf of America will produce light to moderate winds and low to moderate seas along the Lower Texas Coast through the next several days. Small Craft Should Exercise Caution and Small Craft Advisory are not likely to be needed.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 80 96 80 96 / 10 30 30 50 HARLINGEN 76 99 76 98 / 0 30 30 50 MCALLEN 79 101 79 99 / 0 40 30 50 RIO GRANDE CITY 77 101 77 99 / 10 40 20 50 SOUTH PADRE ISLAND 83 90 83 90 / 10 30 20 40 BAYVIEW/PORT ISABEL 79 94 79 94 / 10 30 30 50
BRO WATCHES/WARNINGS/ADVISORIES
None.
Area Forecast Discussion National Weather Service Brownsville TX 1031 PM CDT Mon Sep 21 2026
New DISCUSSION, MARINE
KEY MESSAGES
Updated at 1019 PM CDT Mon Sep 21 2026
- Sustained daily opportunity for rainfall, especially Wednesday and Thursday.
- Continued hot temperatures, but no extremes.
- Elevated risk of rip currents at the local beaches.
DISCUSSION
Issued at 1019 PM CDT Mon Sep 21 2026
Broad 500 mb high pressure will remain the dominant weather feature over Deep South Texas and the Rio Grande Valley through the forecast period. However, the center of the high, positioned generally over east Texas, will produce a more easterly and moist flow off of the neighboring Gulf of America, with precipitable water values hovering near 2 inches. This will have the result of enhancing the daily seabreeze boundary, with isolated to scattered showers and thunderstorms across the BRO CWFA. At this time, the best chances for precipitation are Wednesday and Thursday, with the best combination of moisture and easterly flow.
Temperature-wise, above normal to well above normal values will occur, despite the autumnal equinox officially kicking-off on Tuesday 22 September at 7:04 PM CDT.
Finally, winds and seas along the Lower Texas Coast will produce a low to moderate risk of rip currents at the local beaches through the period.
AVIATION
(00Z TAFS)
Issued at 558 PM CDT Mon Sep 21 2026
VFR will prevail at the aerodromes through the next 24 hours, with light to moderate winds with breezy gusts and clear to partly cloudy skies. Convection is possible, but will be too isolated to warrant a mention in the current issuance of TAFs.
MARINE
Issued at 1019 PM CDT Mon Sep 21 2026
High pressure over the western Gulf of America will produce light to moderate winds and low to moderate seas along the Lower Texas Coast through the next several days. Small Craft Should Exercise Caution and Small Craft Advisory are not likely to be needed.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 80 96 80 96 / 10 30 30 50 HARLINGEN 76 99 76 98 / 0 30 30 50 MCALLEN 79 101 79 99 / 0 40 30 50 RIO GRANDE CITY 77 101 77 99 / 10 40 20 50 SOUTH PADRE ISLAND 83 90 83 90 / 10 30 20 40 BAYVIEW/PORT ISABEL 79 94 79 94 / 10 30 30 50
BRO WATCHES/WARNINGS/ADVISORIES
None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| PTIT2 - 8779770 - Port Isabel, TX | 6 mi | 56 min | SSE 2.9G | 85°F | 90°F | 29.88 | ||
| BZST2 | 8 mi | 56 min | ESE 11G | 85°F | 88°F | 29.85 | ||
| PCGT2 - 8779748 - South Padre Island CGS, TX | 8 mi | 56 min | ESE 11G | 85°F | 87°F | 29.86 | ||
| RLIT2 | 8 mi | 56 min | ESE 13G | 86°F | 29.88 | |||
| PMNT2 | 30 mi | 56 min | 86°F | 29.88 | ||||
| RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX | 47 mi | 56 min | 85°F | 89°F | 29.88 |
Wind History for Port Isabel, TX
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KPIL Port Isabel Cameron County Airport US | 4 sm | 20 min | SE 08 | 10 sm | A Few Clouds | 84°F | 75°F | 74% | 29.90 | |
| KBRO Brownsville South Padre Island International Airport US | 18 sm | 20 min | ESE 06 | 10 sm | Clear | 84°F | 77°F | 79% | 29.89 | |
| KHRL Valley International Airport US | 21 sm | 21 min | ESE 06 | 10 sm | Clear | 81°F | 73°F | 79% | 29.89 |
Link to 5 hour of 5 minute data for KPIL
Terminal Aerodrome Forecast (TAF) for KPIL
Wind History Graph: PIL
(wind in knots)
GEOS Local Image of gulf of mexico
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Brownsville, TX,
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