For More Weather Information:

4NM ENE Port Isabel TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:45 pm CDT Mar 8, 2026
Forecast Valid: 9pm CDT Mar 8, 2026-6pm CDT Mar 15, 2026

Tonight

ESE wind 6 to 8 kt becoming S after midnight. Mostly cloudy. Seas around 2 ft.

Monday

SSE wind 8 to 16 kt. Partly sunny. Seas around 2 ft.

Monday Night

SE wind around 15 kt. Mostly cloudy. Seas 2 to 3 ft.

Tuesday

SSE wind 15 to 20 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 2 to 3 ft.

Tuesday Night

SSE wind 16 to 20 kt. Mostly cloudy. Seas 2 to 4 ft.

Wednesday

S wind 10 to 12 kt becoming E in the afternoon. Mostly sunny. Seas 2 to 4 ft.

Wednesday Night

E wind 6 to 11 kt becoming N 14 to 19 kt after midnight. Mostly cloudy. Seas 2 to 4 ft.

Thursday

N wind 17 to 20 kt. Mostly sunny. Seas 3 to 5 ft.

Thursday Night

NE wind 6 to 13 kt becoming ESE after midnight. Mostly clear. Seas 2 to 4 ft.

Winds and seas higher in and near thunderstorms.

*Notices:

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.
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.