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Hazardous Weather Conditions

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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:ESE wind 5 to 10 kt becoming N 15 to 25 kt after midnight. Winds could gust as high as 36 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Seas 1 to 3 ft.

      Low: 64 °F

      ⇑N 25kt
      1-3ft

    • Monday

      Monday:NNE wind 26 to 36 kt, with gusts as high as 42 kt. A chance of showers before 8am. Seas 4 to 6 ft.

      High: 64 °FFalling Temperatures

      NNE 36kt
      4-6ft

    • Monday Night

      Monday Night:N wind 22 to 26 kt. Mostly cloudy. Seas 9 ft subsiding to 5 ft.

      Low: 48 °F

      N 26kt
      9ftWaves Subsiding

    • Tuesday

      Tuesday:N wind 13 to 21 kt. Mostly sunny. Seas 7 ft subsiding to 3 ft.

      High: 58 °F

      N 21kt
      7ftWaves Subsiding

    • Tuesday Night

      Tuesday Night:N wind 7 to 12 kt. Mostly clear. Seas 2 ft building to 5 ft.

      Low: 55 °F

      N 12kt
      Waves Building5ft

    • Wednesday

      Wednesday:N wind 5 to 7 kt becoming ESE in the afternoon. Sunny. Seas 1 to 3 ft.

      High: 65 °F

      N 7kt
      1-3ft

    • Wednesday Night

      Wednesday Night:ESE wind 6 to 8 kt becoming S after midnight. Partly cloudy. Seas 1 to 2 ft.

      Low: 61 °F

      SSE 8kt
      1-2ft

    • New Year's Day

      New Year's Day:S wind 7 to 11 kt. Partly sunny. Seas 1 to 2 ft.

      High: 72 °F

      S 11kt
      1-2ft

    • Thursday Night

      Thursday Night:S wind 11 to 13 kt. Partly cloudy. Seas 1 to 3 ft.

      Low: 68 °F

      S 13kt
      1-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:00 pm CST Dec 28, 2025
Forecast Valid: 6pm CST Dec 28, 2025-6pm CST Jan 4, 2026

View Nearby Observations

Detailed Forecast


Tonight
ESE wind 5 to 10 kt becoming N 15 to 25 kt after midnight. Winds could gust as high as 36 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Seas 1 to 3 ft.
Monday
NNE wind 26 to 36 kt, with gusts as high as 42 kt. A chance of showers before 8am. Seas 4 to 6 ft.
Monday Night
N wind 22 to 26 kt. Mostly cloudy. Seas 9 ft subsiding to 5 ft.
Tuesday
N wind 13 to 21 kt. Mostly sunny. Seas 7 ft subsiding to 3 ft.
Tuesday Night
N wind 7 to 12 kt. Mostly clear. Seas 2 ft building to 5 ft.
Wednesday
N wind 5 to 7 kt becoming ESE in the afternoon. Sunny. Seas 1 to 3 ft.
Wednesday Night
ESE wind 6 to 8 kt becoming S after midnight. Partly cloudy. Seas 1 to 2 ft.
New Year's Day
S wind 7 to 11 kt. Partly sunny. Seas 1 to 2 ft.
Thursday Night
S wind 11 to 13 kt. Partly cloudy. Seas 1 to 3 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 26.11°N 97.16°W
Last Update: 6:00 pm CST Dec 28, 2025
Forecast Valid: 6pm CST Dec 28, 2025-6pm CST Jan 4, 2026
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