For More Weather Information:

4NM ENE Port Isabel TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:45 am CST Dec 10, 2025
Forecast Valid: 9am CST Dec 10, 2025-6pm CST Dec 16, 2025

Today

SSW wind around 8 kt becoming SE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Tonight

SE wind 5 to 7 kt becoming N after midnight. Partly cloudy. Seas 1 to 2 ft.

Thursday

N wind 5 to 7 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

E wind 7 to 11 kt becoming S after midnight. Partly cloudy. Seas 1 to 2 ft.

Friday

S wind around 12 kt. Mostly sunny. Seas around 2 ft.

Friday Night

SSE wind 8 to 10 kt. Partly cloudy. Seas 1 to 2 ft.

Saturday

SSE wind 8 to 10 kt. A slight chance of showers before noon. Seas 1 to 2 ft.

Saturday Night

SE wind 7 to 9 kt. Mostly clear. Seas 1 to 2 ft.

Sunday

ESE wind 7 to 14 kt becoming ENE in the afternoon. A chance of showers and thunderstorms. Seas 1 to 2 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.