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Charleston Harbor MR

[NOTICE]

Last Update: 1:32 am EST Dec 9, 2025
Forecast Valid: 4am EST Dec 9, 2025-6pm EST Dec 15, 2025

Tuesday

N wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

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

Wednesday

SW wind 5 to 8 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Wednesday Night

SW wind 11 to 14 kt becoming WNW after midnight. Winds could gust as high as 21 kt. Mostly clear. Seas 1 ft or less.

Thursday

WNW wind around 9 kt. Sunny. Seas 1 ft or less.

Thursday Night

W wind around 6 kt. Mostly clear. Seas 1 ft or less.

Friday

WNW wind 5 to 8 kt becoming SW in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

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

Saturday

W wind around 7 kt becoming SW in the afternoon. Sunny. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 56 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.