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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:ENE wind around 13 kt. Sunny. Seas 3 to 4 ft.

      High: 64 °F

      ENE 13kt
      3-4ft

    • Tonight

      Tonight:ENE wind 8 to 11 kt becoming SE after midnight. Mostly clear. Seas 5 ft subsiding to 2 ft.

      Low: 61 °F

      ENE 11kt
      5ftWaves Subsiding

    • Tuesday

      Tuesday:SSE wind 9 to 18 kt. Sunny. Seas 2 to 4 ft.

      High: 70 °F

      SSE 18kt
      2-4ft

    • Tuesday Night

      Tuesday Night:S wind 18 to 21 kt. Mostly clear. Seas 2 ft building to 5 ft.

      Low: 67 °F

      S 21kt
      Waves Building5ft

    • Wednesday

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

      High: 74 °F

      S 23kt
      6ftWaves Subsiding

    • Wednesday Night

      Wednesday Night:S wind 18 to 22 kt. Mostly clear. Seas 6 ft subsiding to 3 ft.

      Low: 70 °F

      S 22kt
      6ftWaves Subsiding

    • Thursday

      Thursday:S wind 14 to 17 kt. Sunny. Seas 6 ft subsiding to 2 ft.

      High: 77 °F

      S 17kt
      6ftWaves Subsiding

    • Thursday Night

      Thursday Night:SSE wind 9 to 13 kt becoming NNE after midnight. Mostly clear. Seas 4 ft subsiding to 1 ft.

      Low: 68 °F

      SSE 13kt
      4ftWaves Subsiding

    • Friday

      Friday:NNE wind 9 to 11 kt becoming E in the afternoon. Sunny. Seas 2 to 3 ft.

      High: 73 °F

      ENE 11kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:30 pm CST Feb 23, 2026
Forecast Valid: 4pm CST Feb 23, 2026-6pm CST Mar 1, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
ENE wind around 13 kt. Sunny. Seas 3 to 4 ft.
Tonight
ENE wind 8 to 11 kt becoming SE after midnight. Mostly clear. Seas 5 ft subsiding to 2 ft.
Tuesday
SSE wind 9 to 18 kt. Sunny. Seas 2 to 4 ft.
Tuesday Night
S wind 18 to 21 kt. Mostly clear. Seas 2 ft building to 5 ft.
Wednesday
S wind 19 to 23 kt. Sunny. Seas 6 ft subsiding to 2 ft.
Wednesday Night
S wind 18 to 22 kt. Mostly clear. Seas 6 ft subsiding to 3 ft.
Thursday
S wind 14 to 17 kt. Sunny. Seas 6 ft subsiding to 2 ft.
Thursday Night
SSE wind 9 to 13 kt becoming NNE after midnight. Mostly clear. Seas 4 ft subsiding to 1 ft.
Friday
NNE wind 9 to 11 kt becoming E in the afternoon. Sunny. Seas 2 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: 4:30 pm CST Feb 23, 2026
Forecast Valid: 4pm CST Feb 23, 2026-6pm CST Mar 1, 2026
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