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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:W wind 7 to 12 kt becoming N 16 to 21 kt in the morning. Partly sunny. Seas 2 to 4 ft.

      High: 66 °F

      ⇑N 21kt
      2-4ft

    • Wednesday Night

      Wednesday Night:N wind 16 to 19 kt. Mostly clear. Seas around 4 ft.

      Low: 57 °F

      N 19kt
      4ft

    • Thursday

      Thursday:N wind 9 to 16 kt. Sunny. Seas 3 to 4 ft.

      High: 62 °F

      N 16kt
      3-4ft

    • Thursday Night

      Thursday Night:NE wind 5 to 8 kt becoming SW after midnight. Mostly clear. Seas 2 to 3 ft.

      Low: 55 °F

      NE 8kt
      2-3ft

    • Friday

      Friday:SW wind 5 to 8 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 67 °F

      SSE 8kt
      1-2ft

    • Friday Night

      Friday Night:S wind 5 to 8 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 60 °F

      S 8kt
      1-2ft

    • Saturday

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

      High: 70 °F

      ⇑SE 9kt
      1ft

    • Saturday Night

      Saturday Night:S wind around 9 kt. Mostly clear. Seas around 1 ft.

      Low: 63 °F

      S 9kt
      1ft

    • Sunday

      Sunday:SSE wind 9 to 12 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 70 °F

      SSE 12kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:30 am CST Feb 4, 2026
Forecast Valid: 3am CST Feb 4, 2026-6pm CST Feb 10, 2026

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Detailed Forecast


Wednesday
W wind 7 to 12 kt becoming N 16 to 21 kt in the morning. Partly sunny. Seas 2 to 4 ft.
Wednesday Night
N wind 16 to 19 kt. Mostly clear. Seas around 4 ft.
Thursday
N wind 9 to 16 kt. Sunny. Seas 3 to 4 ft.
Thursday Night
NE wind 5 to 8 kt becoming SW after midnight. Mostly clear. Seas 2 to 3 ft.
Friday
SW wind 5 to 8 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.
Friday Night
S wind 5 to 8 kt. Mostly clear. Seas 1 to 2 ft.
Saturday
Variable winds less than 5 kt becoming SE 5 to 9 kt in the afternoon. Sunny. Seas around 1 ft.
Saturday Night
S wind around 9 kt. Mostly clear. Seas around 1 ft.
Sunday
SSE wind 9 to 12 kt. Mostly sunny. Seas 1 to 2 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 am CST Feb 4, 2026
Forecast Valid: 3am CST Feb 4, 2026-6pm CST Feb 10, 2026
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