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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NE wind around 8 kt. Sunny. Seas 1 ft or less.

      High: 73 °F

      NE 8kt
      < 1ft

    • Tonight

      Tonight:NE wind 8 to 13 kt becoming N 14 to 19 kt after midnight. Winds could gust as high as 25 kt. Partly cloudy. Seas 1 ft or less.

      Low: 58 °F

      ⇑N 19kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:N wind 13 to 17 kt, with gusts as high as 24 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

      High: 65 °F

      N 17kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:NNE wind 5 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 58 °F

      NNE 12kt
      < 1ft

    • Tuesday

      Tuesday:NNE wind around 6 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

      High: 70 °F

      ENE 6kt
      < 1ft

    • Tuesday Night

      Tuesday Night:ESE wind around 7 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.

      Low: 62 °F

      S 7kt
      < 1ft

    • Wednesday

      Wednesday:S wind 6 to 12 kt. Sunny. Seas 1 ft or less.

      High: 77 °F

      S 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 9 to 11 kt. Mostly clear. Seas 1 ft or less.

      Low: 66 °F

      S 11kt
      < 1ft

    • Thursday

      Thursday:SSW wind 9 to 12 kt. Sunny. Seas 1 ft or less.

      High: 79 °F

      SSW 12kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:30 pm CST Dec 7, 2025
Forecast Valid: 5pm CST Dec 7, 2025-6pm CST Dec 14, 2025

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Detailed Forecast


This Afternoon
NE wind around 8 kt. Sunny. Seas 1 ft or less.
Tonight
NE wind 8 to 13 kt becoming N 14 to 19 kt after midnight. Winds could gust as high as 25 kt. Partly cloudy. Seas 1 ft or less.
Monday
N wind 13 to 17 kt, with gusts as high as 24 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.
Monday Night
NNE wind 5 to 12 kt. Mostly clear. Seas 1 ft or less.
Tuesday
NNE wind around 6 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
ESE wind around 7 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.
Wednesday
S wind 6 to 12 kt. Sunny. Seas 1 ft or less.
Wednesday Night
S wind 9 to 11 kt. Mostly clear. Seas 1 ft or less.
Thursday
SSW wind 9 to 12 kt. Sunny. Seas 1 ft or less.

*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: 5:30 pm CST Dec 7, 2025
Forecast Valid: 5pm CST Dec 7, 2025-6pm CST Dec 14, 2025
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