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Charleston Harbor MR

[NOTICE]

Last Update: 7:32 pm EST Jan 18, 2026
Forecast Valid: 7pm EST Jan 18, 2026-6pm EST Jan 25, 2026

Tonight

WNW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. Winds could gust as high as 23 kt. Mostly clear. Seas 1 ft or less.

M.L.King Day

W wind 7 to 9 kt. Sunny. Seas 1 ft or less.

Monday Night

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

Tuesday

NNW wind around 6 kt. Sunny. Seas 1 ft or less.

Tuesday Night

NE wind 5 to 7 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

NE wind around 8 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A slight chance of showers after 1am. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming NW around 6 kt in the morning. A chance of showers. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 53 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.