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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:ESE wind 7 to 14 kt. Sunny. Seas 1 ft or less.

      High: 72 °F

      ESE 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:ESE wind 6 to 13 kt. Mostly clear. Seas 1 ft or less.

      Low: 64 °F

      ESE 13kt
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming ESE 7 to 12 kt in the afternoon. Sunny. Seas 1 ft or less.

      High: 74 °F

      ⇑ESE 12kt
      < 1ft

    • Thursday Night

      Thursday Night:ESE wind 6 to 12 kt becoming S after midnight. Clear. Seas 1 ft or less.

      Low: 64 °F

      ESE 12kt
      < 1ft

    • Friday

      Friday:SSW wind 5 to 13 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

      High: 78 °F

      SE 13kt
      < 1ft

    • Friday Night

      Friday Night:S wind 9 to 12 kt. Clear. Seas 1 ft or less.

      Low: 66 °F

      S 12kt
      < 1ft

    • Saturday

      Saturday:SSE wind 8 to 15 kt. Sunny. Seas 1 ft or less.

      High: 80 °F

      SSE 15kt
      < 1ft

    • Saturday Night

      Saturday Night:SSE wind 10 to 14 kt. Clear. Seas 1 ft or less.

      Low: 68 °F

      SSE 14kt
      < 1ft

    • Sunday

      Sunday:S wind 9 to 16 kt. Sunny. Seas 1 ft or less.

      High: 80 °F

      S 16kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:00 am CDT Mar 18, 2026
Forecast Valid: 4am CDT Mar 18, 2026-6pm CDT Mar 24, 2026

View Nearby Observations

Detailed Forecast


Wednesday
ESE wind 7 to 14 kt. Sunny. Seas 1 ft or less.
Wednesday Night
ESE wind 6 to 13 kt. Mostly clear. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming ESE 7 to 12 kt in the afternoon. Sunny. Seas 1 ft or less.
Thursday Night
ESE wind 6 to 12 kt becoming S after midnight. Clear. Seas 1 ft or less.
Friday
SSW wind 5 to 13 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.
Friday Night
S wind 9 to 12 kt. Clear. Seas 1 ft or less.
Saturday
SSE wind 8 to 15 kt. Sunny. Seas 1 ft or less.
Saturday Night
SSE wind 10 to 14 kt. Clear. Seas 1 ft or less.
Sunday
S wind 9 to 16 kt. 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: 4:00 am CDT Mar 18, 2026
Forecast Valid: 4am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
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