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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Sunday

      Sunday:SSE wind 18 to 27 km/h, with gusts as high as 35 km/h. A chance of showers, mainly after 4pm.   Seas 1 m or less.

      High: 27 °C

      SSE 27km/h
      < 1m

    • Sunday Night

      Sunday Night:SSE wind 11 to 18 km/h. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 5am.   Seas 1 m or less.

      Low: 23 °C

      SSE 18km/h
      < 1m

    • Monday

      Monday:ESE wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. A chance of showers and thunderstorms.   Seas 1 m or less.

      High: 26 °C

      ⇑ESE 21km/h
      < 1m

    • Monday Night

      Monday Night:ESE wind 14 to 18 km/h. A slight chance of thunderstorms before 7pm.   Seas 1 m or less.

      Low: 23 °C

      ESE 18km/h
      < 1m

    • Tuesday

      Tuesday:SE wind 16 to 21 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 37 km/h. A slight chance of showers and thunderstorms.   Seas 1 m or less.

      High: 26 °C

      ⇑SE 29km/h
      < 1m

    • Tuesday Night

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

      Low: 23 °C

      SE 26km/h
      1m

    • Wednesday

      Wednesday:SE wind 23 to 29 km/h, with gusts as high as 39 km/h. Partly sunny. Seas around 1 m.

      High: 27 °C

      SE 29km/h
      1m

    • Wednesday Night

      Wednesday Night:SE wind around 24 km/h, with gusts as high as 32 km/h. Mostly cloudy. Seas around 1 m.

      Low: 23 °C

      SE 24km/h
      1m

    • Thursday

      Thursday:SE wind 23 to 32 km/h, with gusts as high as 39 km/h. Partly sunny. Seas around 1 m.

      High: 27 °C

      SE 32km/h
      1m


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:45 am CDT Apr 20, 2025
Forecast Valid: 4am CDT Apr 20, 2025-6pm CDT Apr 26, 2025

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Detailed Forecast


Sunday
SSE wind 18 to 27 km/h, with gusts as high as 35 km/h. A chance of showers, mainly after 4pm. Seas 1 m or less.
Sunday Night
SSE wind 11 to 18 km/h. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 5am. Seas 1 m or less.
Monday
ESE wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. A chance of showers and thunderstorms. Seas 1 m or less.
Monday Night
ESE wind 14 to 18 km/h. A slight chance of thunderstorms before 7pm. Seas 1 m or less.
Tuesday
SE wind 16 to 21 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 37 km/h. A slight chance of showers and thunderstorms. Seas 1 m or less.
Tuesday Night
SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Mostly cloudy. Seas around 1 m.
Wednesday
SE wind 23 to 29 km/h, with gusts as high as 39 km/h. Partly sunny. Seas around 1 m.
Wednesday Night
SE wind around 24 km/h, with gusts as high as 32 km/h. Mostly cloudy. Seas around 1 m.
Thursday
SE wind 23 to 32 km/h, with gusts as high as 39 km/h. Partly sunny. Seas around 1 m.

Winds and waves 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: 26.15°N 97.29°W
Last Update: 3:45 am CDT Apr 20, 2025
Forecast Valid: 4am CDT Apr 20, 2025-6pm CDT Apr 26, 2025
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