For More Weather Information:

Charleston Harbor MR

[NOTICE]

Last Update: 7:32 pm EST Dec 10, 2025
Forecast Valid: 10pm EST Dec 10, 2025-6pm EST Dec 17, 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Tonight

WSW wind 14 to 16 kt becoming WNW after midnight. Winds could gust as high as 24 kt. Mostly clear. Seas 1 ft or less.

Thursday

WNW wind 8 to 11 kt. Sunny. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

Friday Night

SW wind 7 to 10 kt. Mostly clear. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Sunday

W wind 6 to 11 kt becoming NNW in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

NNE wind 11 to 14 kt increasing to 16 to 19 kt after midnight. Mostly clear. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 55 degrees.

*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.