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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:N wind 19 to 21 kt. Mostly cloudy. Seas around 3 ft.

      Low: 57 °F

      N 21kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:N wind 13 to 19 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 63 °F

      N 19kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:NNE wind 5 to 12 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 57 °F

      NNE 12kt
      1-2ft

    • Tuesday

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

      High: 70 °F

      NE 6kt
      1ft

    • Tuesday Night

      Tuesday Night:ESE wind around 6 kt becoming S after midnight. Mostly clear. Seas around 1 ft.

      Low: 61 °F

      ESE 6kt
      1ft

    • Wednesday

      Wednesday:S wind 5 to 11 kt. Sunny. Seas 1 to 2 ft.

      High: 76 °F

      S 11kt
      1-2ft

    • Wednesday Night

      Wednesday Night:SSE wind 6 to 9 kt. Partly cloudy. Seas around 1 ft.

      Low: 64 °F

      SSE 9kt
      1ft

    • Thursday

      Thursday:SSW wind 6 to 10 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 77 °F

      S 10kt
      1-2ft

    • Thursday Night

      Thursday Night:S wind 7 to 9 kt. Partly cloudy. Seas around 1 ft.

      Low: 68 °F

      S 9kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:30 am CST Dec 8, 2025
Forecast Valid: 12am CST Dec 8, 2025-6pm CST Dec 14, 2025

View Nearby Observations

Detailed Forecast


Overnight
N wind 19 to 21 kt. Mostly cloudy. Seas around 3 ft.
Monday
N wind 13 to 19 kt. Mostly sunny. Seas 2 to 3 ft.
Monday Night
NNE wind 5 to 12 kt. Partly cloudy. Seas 1 to 2 ft.
Tuesday
N wind around 6 kt becoming ESE in the afternoon. Sunny. Seas around 1 ft.
Tuesday Night
ESE wind around 6 kt becoming S after midnight. Mostly clear. Seas around 1 ft.
Wednesday
S wind 5 to 11 kt. Sunny. Seas 1 to 2 ft.
Wednesday Night
SSE wind 6 to 9 kt. Partly cloudy. Seas around 1 ft.
Thursday
SSW wind 6 to 10 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Thursday Night
S wind 7 to 9 kt. Partly cloudy. Seas around 1 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: 26.15°N 97.29°W
Last Update: 12:30 am CST Dec 8, 2025
Forecast Valid: 12am CST Dec 8, 2025-6pm CST Dec 14, 2025
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