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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Sunday

      Sunday:N wind 9 to 19 kt. Sunny. Seas 6 ft subsiding to 2 ft.

      High: 59 °F

      N 19kt
      6ftWaves Subsiding

    • Sunday Night

      Sunday Night:NE wind 5 to 7 kt becoming SSE after midnight. Clear. Seas 1 to 2 ft.

      Low: 55 °F

      NE 7kt
      1-2ft

    • M.L.King Day

      M.L.King Day:ESE wind 6 to 13 kt. Sunny. Seas around 2 ft.

      High: 66 °F

      ESE 13kt
      2ft

    • Monday Night

      Monday Night:ESE wind around 12 kt. Increasing clouds. Seas 1 to 2 ft.

      Low: 63 °F

      ESE 12kt
      1-2ft

    • Tuesday

      Tuesday:E wind 11 to 15 kt. A chance of showers, mainly after noon.   Seas 2 to 3 ft.

      High: 69 °F

      E 15kt
      2-3ft

    • Tuesday Night

      Tuesday Night:SSE wind 11 to 14 kt. A chance of showers.   Seas around 2 ft.

      Low: 64 °F

      SSE 14kt
      2ft

    • Wednesday

      Wednesday:S wind 9 to 11 kt. Showers likely and possibly a thunderstorm.   Seas 2 to 3 ft.

      High: 69 °F

      S 11kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SSE wind 9 to 11 kt becoming NNW after midnight. A chance of showers.   Seas around 2 ft.

      Low: 63 °F

      N 11kt
      2ft

    • Thursday

      Thursday:N wind around 12 kt. Partly sunny. Seas 2 to 3 ft.

      High: 68 °F

      N 12kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:00 am CST Jan 18, 2026
Forecast Valid: 1am CST Jan 18, 2026-6pm CST Jan 24, 2026

View Nearby Observations

Detailed Forecast


Sunday
N wind 9 to 19 kt. Sunny. Seas 6 ft subsiding to 2 ft.
Sunday Night
NE wind 5 to 7 kt becoming SSE after midnight. Clear. Seas 1 to 2 ft.
M.L.King Day
ESE wind 6 to 13 kt. Sunny. Seas around 2 ft.
Monday Night
ESE wind around 12 kt. Increasing clouds. Seas 1 to 2 ft.
Tuesday
E wind 11 to 15 kt. A chance of showers, mainly after noon. Seas 2 to 3 ft.
Tuesday Night
SSE wind 11 to 14 kt. A chance of showers. Seas around 2 ft.
Wednesday
S wind 9 to 11 kt. Showers likely and possibly a thunderstorm. Seas 2 to 3 ft.
Wednesday Night
SSE wind 9 to 11 kt becoming NNW after midnight. A chance of showers. Seas around 2 ft.
Thursday
N wind around 12 kt. Partly 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: 1:00 am CST Jan 18, 2026
Forecast Valid: 1am CST Jan 18, 2026-6pm CST Jan 24, 2026
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