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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:SSW wind 5 to 9 kt becoming SE in the afternoon. Mostly sunny. Seas 1 ft or less.

      High: 76 °F

      S 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SE wind 5 to 8 kt becoming N after midnight. Partly cloudy. Seas 1 ft or less.

      Low: 64 °F

      SE 8kt
      < 1ft

    • Thursday

      Thursday:N wind 5 to 7 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

      High: 72 °F

      E 7kt
      < 1ft

    • Thursday Night

      Thursday Night:E wind 7 to 9 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.

      Low: 66 °F

      SSE 9kt
      < 1ft

    • Friday

      Friday:SSE wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.

      High: 77 °F

      SSE 12kt
      < 1ft

    • Friday Night

      Friday Night:SSE wind 6 to 10 kt. Partly cloudy. Seas 1 ft or less.

      Low: 69 °F

      SSE 10kt
      < 1ft

    • Saturday

      Saturday:SSE wind 6 to 11 kt. Mostly sunny. Seas 1 ft or less.

      High: 78 °F

      SSE 11kt
      < 1ft

    • Saturday Night

      Saturday Night:SE wind 5 to 9 kt. Mostly clear. Seas 1 ft or less.

      Low: 69 °F

      SE 9kt
      < 1ft

    • Sunday

      Sunday:ESE wind 5 to 14 kt becoming ENE in the afternoon. A slight chance of showers and thunderstorms.   Seas 1 ft or less.

      High: 76 °F

      ENE 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:45 am CST Dec 10, 2025
Forecast Valid: 2am CST Dec 10, 2025-6pm CST Dec 16, 2025

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Detailed Forecast


Wednesday
SSW wind 5 to 9 kt becoming SE in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
SE wind 5 to 8 kt becoming N after midnight. Partly cloudy. Seas 1 ft or less.
Thursday
N wind 5 to 7 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.
Thursday Night
E wind 7 to 9 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.
Friday
SSE wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
SSE wind 6 to 10 kt. Partly cloudy. Seas 1 ft or less.
Saturday
SSE wind 6 to 11 kt. Mostly sunny. Seas 1 ft or less.
Saturday Night
SE wind 5 to 9 kt. Mostly clear. Seas 1 ft or less.
Sunday
ESE wind 5 to 14 kt becoming ENE in the afternoon. A slight chance of showers and thunderstorms. Seas 1 ft or less.

Winds and waves 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: 26.15°N 97.29°W
Last Update: 2:45 am CST Dec 10, 2025
Forecast Valid: 2am CST Dec 10, 2025-6pm CST Dec 16, 2025
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