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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:N wind 9 to 13 kt. Sunny. Seas 2 to 3 ft.

      High: 62 °F

      N 13kt
      2-3ft

    • Wednesday Night

      Wednesday Night:NNE wind 5 to 9 kt becoming ESE after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 59 °F

      NNE 9kt
      1-2ft

    • Thursday

      Thursday:SSE wind 5 to 10 kt. Partly sunny. Seas 1 to 2 ft.

      High: 68 °F

      SSE 10kt
      1-2ft

    • Thursday Night

      Thursday Night:Variable winds less than 5 kt becoming N 13 to 18 kt after midnight. A chance of showers.   Seas 1 to 3 ft.

      Low: 55 °F

      ⇑N 18kt
      1-3ft

    • Friday

      Friday:N wind 20 to 23 kt. Mostly cloudy. Seas 3 ft building to 6 ft.

      High: 61 °F

      N 23kt
      Waves Building6ft

    • Friday Night

      Friday Night:N wind around 20 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 5 ft building to 8 ft.

      Low: 52 °F

      N 20kt
      Waves Building8ft

    • Saturday

      Saturday:N wind 15 to 19 kt. Mostly sunny. Seas 8 ft subsiding to 4 ft.

      High: 57 °F

      N 19kt
      8ftWaves Subsiding

    • Saturday Night

      Saturday Night:NNE wind 8 to 14 kt becoming E after midnight. Mostly cloudy. Seas 2 to 4 ft.

      Low: 51 °F

      NNE 14kt
      2-4ft

    • Sunday

      Sunday:E wind 8 to 11 kt. Partly sunny. Seas 2 to 3 ft.

      High: 62 °F

      E 11kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:00 am CST Jan 28, 2026
Forecast Valid: 4am CST Jan 28, 2026-6pm CST Feb 3, 2026

View Nearby Observations

Detailed Forecast


Wednesday
N wind 9 to 13 kt. Sunny. Seas 2 to 3 ft.
Wednesday Night
NNE wind 5 to 9 kt becoming ESE after midnight. Mostly clear. Seas 1 to 2 ft.
Thursday
SSE wind 5 to 10 kt. Partly sunny. Seas 1 to 2 ft.
Thursday Night
Variable winds less than 5 kt becoming N 13 to 18 kt after midnight. A chance of showers. Seas 1 to 3 ft.
Friday
N wind 20 to 23 kt. Mostly cloudy. Seas 3 ft building to 6 ft.
Friday Night
N wind around 20 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 5 ft building to 8 ft.
Saturday
N wind 15 to 19 kt. Mostly sunny. Seas 8 ft subsiding to 4 ft.
Saturday Night
NNE wind 8 to 14 kt becoming E after midnight. Mostly cloudy. Seas 2 to 4 ft.
Sunday
E wind 8 to 11 kt. Partly 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: 4:00 am CST Jan 28, 2026
Forecast Valid: 4am CST Jan 28, 2026-6pm CST Feb 3, 2026
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