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San Martin Lake Channel, TX Marine Weather Forecast

Station PTIT2 - 8779770 - Port Isabel, TX

October 1, 2026 11:48 pm CDT
Location: 26.061N 97.215W
Wind Direction: SE (130°)
Wind Speed: 8.9 knots
Wind Gust: 11.1 knots
Atmospheric Pressure: 29.80 in (1009.1 mb)
Air Temperature: 84.7°F (29.3°C)
Water Temperature: 88.5°F (31.4°C)


Overnight - 80°F
Oct 02, 2026
9 to 13 mph SSE
Chance Showers And Thunderstorms
A slight chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 80. South southeast wind 9 to 13 mph. Chance of precipitation is 40%.
Friday - 91°F
Oct 02, 2026
6 to 10 mph SE
Chance Showers And Thunderstorms
A chance of rain showers before 10am, then a chance of showers and thunderstorms. Partly sunny, with a high near 91. Southeast wind 6 to 10 mph. Chance of precipitation is 50%.
Friday Night - 78°F
Oct 02, 2026
3 to 10 mph ENE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 9pm and 2am, then showers and thunderstorms likely. Partly cloudy, with a low around 78. East northeast wind 3 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday - 89°F
Oct 03, 2026
6 to 12 mph N
Showers And Thunderstorms
Showers and thunderstorms. Partly sunny, with a high near 89. North wind 6 to 12 mph. Chance of precipitation is 90%.
Saturday Night - 77°F
Oct 03, 2026
5 to 10 mph NNW
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 77. North northwest wind 5 to 10 mph. Chance of precipitation is 90%.
Sunday - 88°F
Oct 04, 2026
8 to 15 mph N
Showers And Thunderstorms
Showers and thunderstorms. Partly sunny, with a high near 88. North wind 8 to 15 mph. Chance of precipitation is 80%.
Sunday Night - 78°F
Oct 04, 2026
8 to 14 mph NNE
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 78. North northeast wind 8 to 14 mph. Chance of precipitation is 90%.
Monday - 84°F
Oct 05, 2026
13 to 18 mph N
Showers And Thunderstorms
Showers and thunderstorms. Partly sunny, with a high near 84. North wind 13 to 18 mph. Chance of precipitation is 90%.
Monday Night - 78°F
Oct 05, 2026
12 to 18 mph NNE
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 78. North northeast wind 12 to 18 mph. Chance of precipitation is 90%.
Tuesday - 84°F
Oct 06, 2026
15 to 20 mph N
Showers And Thunderstorms
Showers and thunderstorms. Partly sunny, with a high near 84. North wind 15 to 20 mph. Chance of precipitation is 80%.
Tuesday Night - 77°F
Oct 06, 2026
10 to 18 mph NNE
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly cloudy, with a low around 77. North northeast wind 10 to 18 mph. Chance of precipitation is 60%.
Wednesday - 84°F
Oct 07, 2026
12 to 20 mph N
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Wednesday Night - 77°F
Oct 07, 2026
10 to 18 mph NNE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 77. Chance of precipitation is 40%.
Thursday - 84°F
Oct 08, 2026
14 to 22 mph NNE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.

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