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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind 10 to 15 kt. Sunny. Seas 1 to 2 ft.

      High: 77 °F

      SE 15kt
      1-2ft

    • Tonight

      Tonight:S wind 10 to 14 kt. Clear. Seas 1 to 2 ft.

      Low: 66 °F

      S 14kt
      1-2ft

    • Saturday

      Saturday:S wind 9 to 16 kt. Sunny. Seas 1 to 2 ft.

      High: 79 °F

      S 16kt
      1-2ft

    • Saturday Night

      Saturday Night:SSE wind 11 to 14 kt. Mostly clear. Seas around 2 ft.

      Low: 67 °F

      SSE 14kt
      2ft

    • Sunday

      Sunday:SSE wind 10 to 16 kt. Sunny. Seas around 2 ft.

      High: 78 °F

      SSE 16kt
      2ft

    • Sunday Night

      Sunday Night:SSE wind 9 to 14 kt. Clear. Seas 1 to 2 ft.

      Low: 68 °F

      SSE 14kt
      1-2ft

    • Monday

      Monday:SSE wind 7 to 13 kt. Sunny. Seas 1 to 2 ft.

      High: 78 °F

      SSE 13kt
      1-2ft

    • Monday Night

      Monday Night:ESE wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

      Low: 67 °F

      ESE 12kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming ESE 9 to 14 kt in the morning. Sunny. Seas 1 ft or less.

      High: 78 °F

      ⇑ESE 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:45 pm CDT Mar 20, 2026
Forecast Valid: 12pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026

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Detailed Forecast


This Afternoon
SE wind 10 to 15 kt. Sunny. Seas 1 to 2 ft.
Tonight
S wind 10 to 14 kt. Clear. Seas 1 to 2 ft.
Saturday
S wind 9 to 16 kt. Sunny. Seas 1 to 2 ft.
Saturday Night
SSE wind 11 to 14 kt. Mostly clear. Seas around 2 ft.
Sunday
SSE wind 10 to 16 kt. Sunny. Seas around 2 ft.
Sunday Night
SSE wind 9 to 14 kt. Clear. Seas 1 to 2 ft.
Monday
SSE wind 7 to 13 kt. Sunny. Seas 1 to 2 ft.
Monday Night
ESE wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming ESE 9 to 14 kt in the morning. 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: 12:45 pm CDT Mar 20, 2026
Forecast Valid: 12pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
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