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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNE wind 19 to 23 kt. Sunny. Seas 10 ft subsiding to 4 ft.

      High: 64 °F

      NNE 23kt
      10ftWaves Subsiding

    • Tonight

      Tonight:NNE wind 11 to 17 kt. Increasing clouds. Seas 9 ft subsiding to 3 ft.

      Low: 60 °F

      NNE 17kt
      9ftWaves Subsiding

    • Monday

      Monday:NE wind 12 to 14 kt. Mostly sunny. Seas 3 to 5 ft.

      High: 64 °F

      NE 14kt
      3-5ft

    • Monday Night

      Monday Night:ENE wind 9 to 12 kt becoming SE after midnight. Mostly clear. Seas 3 to 5 ft.

      Low: 61 °F

      ENE 12kt
      3-5ft

    • Tuesday

      Tuesday:SSE wind 10 to 19 kt. Sunny. Seas 2 to 4 ft.

      High: 70 °F

      SSE 19kt
      2-4ft

    • Tuesday Night

      Tuesday Night:S wind around 20 kt. Mostly clear. Seas 2 ft building to 6 ft.

      Low: 67 °F

      S 20kt
      Waves Building6ft

    • Wednesday

      Wednesday:S wind 19 to 23 kt. Sunny. Seas 2 ft building to 6 ft.

      High: 74 °F

      S 23kt
      Waves Building6ft

    • Wednesday Night

      Wednesday Night:S wind 19 to 22 kt. Mostly clear. Seas 3 ft building to 7 ft.

      Low: 70 °F

      S 22kt
      Waves Building7ft

    • Thursday

      Thursday:S wind 14 to 18 kt. Sunny. Seas 6 ft subsiding to 2 ft.

      High: 78 °F

      S 18kt
      6ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:30 pm CST Feb 22, 2026
Forecast Valid: 12pm CST Feb 22, 2026-6pm CST Feb 28, 2026

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Detailed Forecast


This Afternoon
NNE wind 19 to 23 kt. Sunny. Seas 10 ft subsiding to 4 ft.
Tonight
NNE wind 11 to 17 kt. Increasing clouds. Seas 9 ft subsiding to 3 ft.
Monday
NE wind 12 to 14 kt. Mostly sunny. Seas 3 to 5 ft.
Monday Night
ENE wind 9 to 12 kt becoming SE after midnight. Mostly clear. Seas 3 to 5 ft.
Tuesday
SSE wind 10 to 19 kt. Sunny. Seas 2 to 4 ft.
Tuesday Night
S wind around 20 kt. Mostly clear. Seas 2 ft building to 6 ft.
Wednesday
S wind 19 to 23 kt. Sunny. Seas 2 ft building to 6 ft.
Wednesday Night
S wind 19 to 22 kt. Mostly clear. Seas 3 ft building to 7 ft.
Thursday
S wind 14 to 18 kt. Sunny. Seas 6 ft subsiding to 2 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: 12:30 pm CST Feb 22, 2026
Forecast Valid: 12pm CST Feb 22, 2026-6pm CST Feb 28, 2026
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