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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 15 kt. Mostly sunny. Seas around 1 ft.

      High: 72 °F

      SE 15kt
      1ft

    • Tonight

      Tonight:SE wind 14 to 17 kt. Mostly cloudy. Seas 1 ft building to 4 ft.

      Low: 68 °F

      SE 17kt
      Waves Building4ft

    • Saturday

      Saturday:SSE wind 15 to 21 kt, with gusts as high as 27 kt. Partly sunny. Seas 5 ft subsiding to 2 ft.

      High: 73 °F

      SSE 21kt
      5ftWaves Subsiding

    • Saturday Night

      Saturday Night:S wind 7 to 14 kt becoming W after midnight. Mostly clear. Seas 5 ft subsiding to 1 ft.

      Low: 65 °F

      S 14kt
      5ftWaves Subsiding

    • Sunday

      Sunday:W wind 8 to 15 kt becoming NE in the afternoon. Sunny. Seas 2 to 4 ft.

      High: 72 °F

      NW 15kt
      2-4ft

    • Sunday Night

      Sunday Night:NE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 4 ft subsiding to 1 ft.

      Low: 64 °F

      NE 9kt⇓
      4ftWaves Subsiding

    • Washington's Birthday

      Washington's Birthday:Variable winds less than 5 kt becoming E 5 to 9 kt in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 71 °F

      ⇑E 9kt
      1-2ft

    • Monday Night

      Monday Night:E wind around 9 kt becoming SSE after midnight. Clear. Seas 1 to 2 ft.

      Low: 65 °F

      E 9kt
      1-2ft

    • Tuesday

      Tuesday:SSE wind 9 to 14 kt. Sunny. Seas 2 to 3 ft.

      High: 73 °F

      SSE 14kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:30 pm CST Feb 13, 2026
Forecast Valid: 3pm CST Feb 13, 2026-6pm CST Feb 19, 2026

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Detailed Forecast


This Afternoon
SE wind around 15 kt. Mostly sunny. Seas around 1 ft.
Tonight
SE wind 14 to 17 kt. Mostly cloudy. Seas 1 ft building to 4 ft.
Saturday
SSE wind 15 to 21 kt, with gusts as high as 27 kt. Partly sunny. Seas 5 ft subsiding to 2 ft.
Saturday Night
S wind 7 to 14 kt becoming W after midnight. Mostly clear. Seas 5 ft subsiding to 1 ft.
Sunday
W wind 8 to 15 kt becoming NE in the afternoon. Sunny. Seas 2 to 4 ft.
Sunday Night
NE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 4 ft subsiding to 1 ft.
Washington's Birthday
Variable winds less than 5 kt becoming E 5 to 9 kt in the afternoon. Sunny. Seas 1 to 2 ft.
Monday Night
E wind around 9 kt becoming SSE after midnight. Clear. Seas 1 to 2 ft.
Tuesday
SSE wind 9 to 14 kt. 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: 3:30 pm CST Feb 13, 2026
Forecast Valid: 3pm CST Feb 13, 2026-6pm CST Feb 19, 2026
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