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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 16 kt. Sunny. Seas 1 ft or less.

      High: 74 °F

      SE 16kt
      < 1ft

    • Tonight

      Tonight:SE wind 14 to 16 kt. Mostly cloudy. Seas 1 ft or less building to 5 ft.

      Low: 67 °F

      SE 16kt
      Waves Building5ft

    • Saturday

      Saturday:S wind 15 to 21 kt, with gusts as high as 27 kt. Partly sunny. Seas 6 ft subsiding to 1 ft or less.

      High: 77 °F

      S 21kt
      6ftWaves Subsiding

    • Saturday Night

      Saturday Night:S wind 5 to 14 kt becoming W after midnight. Mostly clear. Seas 1 ft or less building to 5 ft.

      Low: 63 °F

      S 14kt
      Waves Building5ft

    • Sunday

      Sunday:W wind 7 to 14 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less building to 4 ft.

      High: 76 °F

      NNW 14kt
      Waves Building4ft

    • Sunday Night

      Sunday Night:NE wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 5 ft subsiding to 1 ft or less.

      Low: 60 °F

      NE 9kt⇓
      5ftWaves Subsiding

    • Washington's Birthday

      Washington's Birthday:Variable winds less than 5 kt becoming E 5 to 9 kt in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 73 °F

      ⇑E 9kt
      1-2ft

    • Monday Night

      Monday Night:E wind 7 to 9 kt becoming SSE after midnight. Clear. Seas 3 ft subsiding to 1 ft or less.

      Low: 62 °F

      E 9kt
      3ftWaves Subsiding

    • Tuesday

      Tuesday:SSE wind 7 to 15 kt. Sunny. Seas 1 ft or less building to 4 ft.

      High: 76 °F

      SSE 15kt
      Waves Building4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:45 pm CST Feb 13, 2026
Forecast Valid: 3pm CST Feb 13, 2026-6pm CST Feb 19, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SE wind around 16 kt. Sunny. Seas 1 ft or less.
Tonight
SE wind 14 to 16 kt. Mostly cloudy. Seas 1 ft or less building to 5 ft.
Saturday
S wind 15 to 21 kt, with gusts as high as 27 kt. Partly sunny. Seas 6 ft subsiding to 1 ft or less.
Saturday Night
S wind 5 to 14 kt becoming W after midnight. Mostly clear. Seas 1 ft or less building to 5 ft.
Sunday
W wind 7 to 14 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less building to 4 ft.
Sunday Night
NE wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 5 ft subsiding to 1 ft or less.
Washington's Birthday
Variable winds less than 5 kt becoming E 5 to 9 kt in the afternoon. Sunny. Seas 1 to 2 ft.
Monday Night
E wind 7 to 9 kt becoming SSE after midnight. Clear. Seas 3 ft subsiding to 1 ft or less.
Tuesday
SSE wind 7 to 15 kt. Sunny. Seas 1 ft or less building to 4 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: 2:45 pm CST Feb 13, 2026
Forecast Valid: 3pm CST Feb 13, 2026-6pm CST Feb 19, 2026
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