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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind 10 to 14 kt. Mostly sunny. Seas 1 ft or less building to 6 ft.

      High: 65 °F

      NE 14kt
      Waves Building6ft

    • Tonight

      Tonight:ENE wind 7 to 11 kt becoming SE after midnight. Clear. Seas 1 ft or less building to 6 ft.

      Low: 57 °F

      ENE 11kt
      Waves Building6ft

    • Tuesday

      Tuesday:SSE wind 8 to 13 kt increasing to 14 to 19 kt in the afternoon. Sunny. Seas 4 ft subsiding to 1 ft or less.

      High: 72 °F

      ⇑SSE 19kt
      4ftWaves Subsiding

    • Tuesday Night

      Tuesday Night:S wind 17 to 19 kt. Mostly clear. Seas 1 ft or less building to 6 ft.

      Low: 65 °F

      S 19kt
      Waves Building6ft

    • Wednesday

      Wednesday:S wind 17 to 21 kt. Sunny. Seas 1 ft or less building to 6 ft.

      High: 77 °F

      S 21kt
      Waves Building6ft

    • Wednesday Night

      Wednesday Night:S wind 17 to 19 kt, with gusts as high as 25 kt. Mostly clear. Seas 6 ft subsiding to 1 ft or less.

      Low: 67 °F

      S 19kt
      6ftWaves Subsiding

    • Thursday

      Thursday:S wind 14 to 16 kt. Sunny. Seas 1 ft or less building to 8 ft.

      High: 82 °F

      S 16kt
      Waves Building8ft

    • Thursday Night

      Thursday Night:SE wind 8 to 13 kt becoming N after midnight. Mostly clear. Seas 5 ft subsiding to 1 ft or less.

      Low: 64 °F

      SE 13kt
      5ftWaves Subsiding

    • Friday

      Friday:NNE wind 8 to 12 kt becoming ENE in the afternoon. Sunny. Seas 1 ft or less.

      High: 74 °F

      NE 12kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:00 am CST Feb 23, 2026
Forecast Valid: 9am CST Feb 23, 2026-6pm CST Mar 1, 2026

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Detailed Forecast


Today
NE wind 10 to 14 kt. Mostly sunny. Seas 1 ft or less building to 6 ft.
Tonight
ENE wind 7 to 11 kt becoming SE after midnight. Clear. Seas 1 ft or less building to 6 ft.
Tuesday
SSE wind 8 to 13 kt increasing to 14 to 19 kt in the afternoon. Sunny. Seas 4 ft subsiding to 1 ft or less.
Tuesday Night
S wind 17 to 19 kt. Mostly clear. Seas 1 ft or less building to 6 ft.
Wednesday
S wind 17 to 21 kt. Sunny. Seas 1 ft or less building to 6 ft.
Wednesday Night
S wind 17 to 19 kt, with gusts as high as 25 kt. Mostly clear. Seas 6 ft subsiding to 1 ft or less.
Thursday
S wind 14 to 16 kt. Sunny. Seas 1 ft or less building to 8 ft.
Thursday Night
SE wind 8 to 13 kt becoming N after midnight. Mostly clear. Seas 5 ft subsiding to 1 ft or less.
Friday
NNE wind 8 to 12 kt becoming ENE in the afternoon. Sunny. Seas 1 ft or less.

*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: 26.15°N 97.29°W
Last Update: 9:00 am CST Feb 23, 2026
Forecast Valid: 9am CST Feb 23, 2026-6pm CST Mar 1, 2026
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