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4NM ENE Port Isabel TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:18 am CST Feb 20, 2026
Forecast Valid: 6am CST Feb 20, 2026-6pm CST Feb 26, 2026

Today

SE wind 9 to 12 kt. Widespread haze. Seas 2 to 4 ft.

Tonight

SSE wind 6 to 12 kt. Widespread haze before 10pm, then Widespread haze after 1am. Seas 4 ft subsiding to 1 ft.

Saturday

ESE wind 5 to 14 kt becoming NNE in the afternoon. Widespread haze before 11am. Seas 1 ft building to 4 ft.

Saturday Night

N wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Partly cloudy. Seas 2 ft building to 6 ft.

Sunday

N wind 19 to 24 kt. Mostly sunny. Seas 4 ft building to 8 ft.

Sunday Night

NE wind 11 to 19 kt. Mostly clear. Seas 3 ft building to 6 ft.

Monday

ENE wind 11 to 14 kt. Mostly sunny. Seas 3 to 5 ft.

Monday Night

ENE wind 9 to 12 kt becoming ESE after midnight. Mostly clear. Seas 3 to 5 ft.

Tuesday

SSE wind 9 to 17 kt. Mostly sunny. Seas 2 to 4 ft.

*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.