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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:N wind 17 to 23 kt. Partly sunny. Seas 7 ft subsiding to 3 ft.

      High: 63 °F

      N 23kt
      7ftWaves Subsiding

    • Tonight

      Tonight:N wind 12 to 16 kt. A slight chance of showers after 5am.   Seas 3 to 4 ft.

      Low: 59 °F

      N 16kt
      3-4ft

    • Monday

      Monday:N wind 11 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.

      High: 64 °F

      N 13kt
      2-3ft

    • Monday Night

      Monday Night:NNE wind 7 to 11 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 61 °F

      NNE 11kt
      2-3ft

    • Tuesday

      Tuesday:NNE wind 7 to 9 kt. Mostly cloudy. Seas around 2 ft.

      High: 65 °F

      NNE 9kt
      2ft

    • Tuesday Night

      Tuesday Night:NE wind 5 to 8 kt becoming NNW after midnight. A chance of showers.   Seas 1 to 2 ft.

      Low: 59 °F

      NE 8kt
      1-2ft

    • Wednesday

      Wednesday:NNW wind 8 to 11 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 69 °F

      NNW 11kt
      1-2ft

    • Wednesday Night

      Wednesday Night:N wind 9 to 15 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 59 °F

      N 15kt
      1-2ft

    • Thursday

      Thursday:N wind 9 to 15 kt becoming ENE in the afternoon. Sunny. Seas 2 to 3 ft.

      High: 66 °F

      N 15kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:00 am CST Jan 11, 2026
Forecast Valid: 6am CST Jan 11, 2026-6pm CST Jan 17, 2026

View Nearby Observations

Detailed Forecast


Today
N wind 17 to 23 kt. Partly sunny. Seas 7 ft subsiding to 3 ft.
Tonight
N wind 12 to 16 kt. A slight chance of showers after 5am. Seas 3 to 4 ft.
Monday
N wind 11 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.
Monday Night
NNE wind 7 to 11 kt. Mostly cloudy. Seas 2 to 3 ft.
Tuesday
NNE wind 7 to 9 kt. Mostly cloudy. Seas around 2 ft.
Tuesday Night
NE wind 5 to 8 kt becoming NNW after midnight. A chance of showers. Seas 1 to 2 ft.
Wednesday
NNW wind 8 to 11 kt. Mostly sunny. Seas 1 to 2 ft.
Wednesday Night
N wind 9 to 15 kt. Mostly clear. Seas 1 to 2 ft.
Thursday
N wind 9 to 15 kt becoming ENE in the afternoon. Sunny. 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: 6:00 am CST Jan 11, 2026
Forecast Valid: 6am CST Jan 11, 2026-6pm CST Jan 17, 2026
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