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Charleston Harbor MR

[NOTICE]

Last Update: 8:32 am EDT Sep 23, 2026
Forecast Valid: 9am EDT Sep 23, 2026-6pm EDT Sep 29, 2026

Today

NNE wind 13 to 16 kt, with gusts as high as 22 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Tonight

NNE wind around 15 kt, with gusts as high as 21 kt. A slight chance of showers and thunderstorms before 7pm. Seas 1 ft or less.

Thursday

NNE wind 16 to 18 kt, with gusts as high as 24 kt. A chance of showers and thunderstorms, mainly before 10am. Seas 1 ft or less.

Thursday Night

N wind around 16 kt, with gusts as high as 24 kt. A chance of showers and thunderstorms, mainly between 7pm and 8pm. Seas 1 ft or less.

Friday

N wind 11 to 14 kt, with gusts as high as 21 kt. Sunny. Seas 1 ft or less.

Friday Night

N wind 6 to 8 kt. Mostly clear. Seas 1 ft or less.

Saturday

N wind 8 to 10 kt. Sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

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

Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 84 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.