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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSE wind around 17 kt. Sunny. Seas 1 to 2 ft.

      High: 76 °F

      SSE 17kt
      1-2ft

    • Tonight

      Tonight:SSE wind 12 to 16 kt. Partly cloudy. Seas 1 ft or less building to 7 ft.

      Low: 66 °F

      SSE 16kt
      Waves Building7ft

    • Wednesday

      Wednesday:S wind 12 to 17 kt. Mostly sunny. Seas 5 ft subsiding to 1 ft or less.

      High: 78 °F

      S 17kt
      5ftWaves Subsiding

    • Wednesday Night

      Wednesday Night:S wind 14 to 16 kt. Partly cloudy. Seas 1 ft or less building to 5 ft.

      Low: 68 °F

      S 16kt
      Waves Building5ft

    • Thursday

      Thursday:S wind 14 to 16 kt. Mostly sunny. Seas 5 ft subsiding to 1 ft or less.

      High: 80 °F

      S 16kt
      5ftWaves Subsiding

    • Thursday Night

      Thursday Night:SSE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less building to 5 ft.

      Low: 68 °F

      SSE 13kt
      Waves Building5ft

    • Friday

      Friday:SSE wind 9 to 13 kt. Sunny. Seas 4 ft subsiding to 1 ft or less.

      High: 80 °F

      SSE 13kt
      4ftWaves Subsiding

    • Friday Night

      Friday Night:SSE wind 6 to 11 kt. Mostly clear. Seas 4 ft subsiding to 1 ft or less.

      Low: 67 °F

      SSE 11kt
      4ftWaves Subsiding

    • Saturday

      Saturday:SSE wind 6 to 14 kt becoming NNE in the afternoon. Mostly sunny. Seas 4 ft subsiding to 1 ft or less.

      High: 78 °F

      NNE 14kt
      4ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:18 pm CST Feb 17, 2026
Forecast Valid: 4pm CST Feb 17, 2026-6pm CST Feb 23, 2026

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Detailed Forecast


This Afternoon
SSE wind around 17 kt. Sunny. Seas 1 to 2 ft.
Tonight
SSE wind 12 to 16 kt. Partly cloudy. Seas 1 ft or less building to 7 ft.
Wednesday
S wind 12 to 17 kt. Mostly sunny. Seas 5 ft subsiding to 1 ft or less.
Wednesday Night
S wind 14 to 16 kt. Partly cloudy. Seas 1 ft or less building to 5 ft.
Thursday
S wind 14 to 16 kt. Mostly sunny. Seas 5 ft subsiding to 1 ft or less.
Thursday Night
SSE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less building to 5 ft.
Friday
SSE wind 9 to 13 kt. Sunny. Seas 4 ft subsiding to 1 ft or less.
Friday Night
SSE wind 6 to 11 kt. Mostly clear. Seas 4 ft subsiding to 1 ft or less.
Saturday
SSE wind 6 to 14 kt becoming NNE in the afternoon. Mostly sunny. Seas 4 ft subsiding to 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: 4:18 pm CST Feb 17, 2026
Forecast Valid: 4pm CST Feb 17, 2026-6pm CST Feb 23, 2026
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