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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming ENE 5 to 9 kt in the afternoon. Sunny. Seas around 1 ft.

      High: 80 °F

      ⇑ENE 9kt
      1ft

    • Wednesday Night

      Wednesday Night:E wind 7 to 9 kt becoming S after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 75 °F

      E 9kt
      1-2ft

    • Thursday

      Thursday:S wind 7 to 14 kt becoming SE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 81 °F

      SE 14kt
      1-2ft

    • Thursday Night

      Thursday Night:SE wind around 15 kt. Partly cloudy. Seas around 2 ft.

      Low: 78 °F

      SE 15kt
      2ft

    • Friday

      Friday:SSE wind 15 to 18 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 81 °F

      SSE 18kt
      2-3ft

    • Friday Night

      Friday Night:SE wind 17 to 19 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 79 °F

      SE 19kt
      2-3ft

    • Saturday

      Saturday:SE wind around 19 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 82 °F

      SE 19kt
      2-3ft

    • Saturday Night

      Saturday Night:SSE wind 17 to 19 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 81 °F

      SSE 19kt
      2-3ft

    • Sunday

      Sunday:SE wind 19 to 22 kt. Mostly cloudy. Seas 2 to 3 ft.

      High: 83 °F

      SE 22kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:18 am CDT May 13, 2026
Forecast Valid: 3am CDT May 13, 2026-6pm CDT May 19, 2026

View Nearby Observations

Detailed Forecast


Wednesday
Variable winds less than 5 kt becoming ENE 5 to 9 kt in the afternoon. Sunny. Seas around 1 ft.
Wednesday Night
E wind 7 to 9 kt becoming S after midnight. Mostly clear. Seas 1 to 2 ft.
Thursday
S wind 7 to 14 kt becoming SE in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Thursday Night
SE wind around 15 kt. Partly cloudy. Seas around 2 ft.
Friday
SSE wind 15 to 18 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
SE wind 17 to 19 kt. Partly cloudy. Seas 2 to 3 ft.
Saturday
SE wind around 19 kt. Mostly sunny. Seas 2 to 3 ft.
Saturday Night
SSE wind 17 to 19 kt. Mostly cloudy. Seas 2 to 3 ft.
Sunday
SE wind 19 to 22 kt. Mostly cloudy. 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: 3:18 am CDT May 13, 2026
Forecast Valid: 3am CDT May 13, 2026-6pm CDT May 19, 2026
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