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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:SE wind 18 to 26 km/h, with gusts as high as 32 km/h. A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms after 3pm.   Seas 1 m or less.

      High: 29 °C

      SE 26km/h
      < 1m

    • Friday Night

      Friday Night:SE wind around 24 km/h. A slight chance of showers between 1am and 2am.   Seas 1 m or less.

      Low: 28 °C

      SE 24km/h
      < 1m

    • Saturday

      Saturday:SE wind 23 to 26 km/h, with gusts as high as 32 km/h. A slight chance of showers and thunderstorms between 11am and noon.   Seas around 1 m.

      High: 29 °C

      SE 26km/h
      1m

    • Saturday Night

      Saturday Night:SE wind 21 to 23 km/h. Partly cloudy. Seas around 1 m.

      Low: 28 °C

      SE 23km/h
      1m

    • Sunday

      Sunday:SSE wind 18 to 26 km/h, with gusts as high as 32 km/h. Sunny. Seas around 1 m.

      High: 30 °C

      SSE 26km/h
      1m

    • Sunday Night

      Sunday Night:SSE wind 24 to 26 km/h, with gusts as high as 32 km/h. Partly cloudy. Seas around 1 m.

      Low: 28 °C

      SSE 26km/h
      1m

    • Monday

      Monday:SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Mostly sunny. Seas around 1 m.

      High: 30 °C

      SE 26km/h
      1m

    • Monday Night

      Monday Night:SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Partly cloudy. Seas around 1 m.

      Low: 28 °C

      SE 26km/h
      1m

    • Tuesday

      Tuesday:SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Mostly sunny. Seas around 1 m.

      High: 30 °C

      SE 26km/h
      1m


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:30 am CDT Jul 10, 2026
Forecast Valid: 3am CDT Jul 10, 2026-6pm CDT Jul 16, 2026

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Detailed Forecast


Friday
SE wind 18 to 26 km/h, with gusts as high as 32 km/h. A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms after 3pm. Seas 1 m or less.
Friday Night
SE wind around 24 km/h. A slight chance of showers between 1am and 2am. Seas 1 m or less.
Saturday
SE wind 23 to 26 km/h, with gusts as high as 32 km/h. A slight chance of showers and thunderstorms between 11am and noon. Seas around 1 m.
Saturday Night
SE wind 21 to 23 km/h. Partly cloudy. Seas around 1 m.
Sunday
SSE wind 18 to 26 km/h, with gusts as high as 32 km/h. Sunny. Seas around 1 m.
Sunday Night
SSE wind 24 to 26 km/h, with gusts as high as 32 km/h. Partly cloudy. Seas around 1 m.
Monday
SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Mostly sunny. Seas around 1 m.
Monday Night
SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Partly cloudy. Seas around 1 m.
Tuesday
SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Mostly sunny. Seas around 1 m.

Winds and seas higher in and near thunderstorms.

*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: 3:30 am CDT Jul 10, 2026
Forecast Valid: 3am CDT Jul 10, 2026-6pm CDT Jul 16, 2026
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