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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:SE wind 7 to 15 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 72 °F

      SE 15kt
      1-2ft

    • Friday Night

      Friday Night:SE wind 14 to 17 kt. Increasing clouds. Seas 1 to 3 ft.

      Low: 68 °F

      SE 17kt
      1-3ft

    • Saturday

      Saturday:S wind 16 to 21 kt, with gusts as high as 27 kt. Partly sunny. Seas 6 ft subsiding to 2 ft.

      High: 73 °F

      S 21kt
      6ftWaves Subsiding

    • Saturday Night

      Saturday Night:S wind 7 to 14 kt becoming W after midnight. A slight chance of showers before midnight.   Seas 5 ft subsiding to 1 ft.

      Low: 66 °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

      NNW 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 1 to 3 ft.

      Low: 63 °F

      NE 9kt⇓
      1-3ft

    • 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: 70 °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 15 kt. Sunny. Seas around 2 ft.

      High: 73 °F

      SSE 15kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:18 am CST Feb 13, 2026
Forecast Valid: 4am CST Feb 13, 2026-6pm CST Feb 19, 2026

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Detailed Forecast


Friday
SE wind 7 to 15 kt. Mostly sunny. Seas 1 to 2 ft.
Friday Night
SE wind 14 to 17 kt. Increasing clouds. Seas 1 to 3 ft.
Saturday
S wind 16 to 21 kt, with gusts as high as 27 kt. Partly sunny. Seas 6 ft subsiding to 2 ft.
Saturday Night
S wind 7 to 14 kt becoming W after midnight. A slight chance of showers before midnight. 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 1 to 3 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 15 kt. Sunny. Seas around 2 ft.

Winds and seas higher in and near thunderstorms.

*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: 4:18 am CST Feb 13, 2026
Forecast Valid: 4am CST Feb 13, 2026-6pm CST Feb 19, 2026
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