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Charleston Harbor MR

[NOTICE]

Last Update: 6:47 pm EST Jan 12, 2026
Forecast Valid: 6pm EST Jan 12, 2026-6pm EST Jan 19, 2026

Tonight

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

Tuesday

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

Tuesday Night

Variable winds 5 kt or less. Increasing clouds. Seas 1 ft or less.

Wednesday

W wind 6 to 10 kt. A chance of showers, mainly before 1pm. Seas 1 ft or less.

Wednesday Night

WSW wind 9 to 11 kt. Mostly cloudy. Seas 1 ft or less.

Thursday

WNW wind 11 to 14 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

Thursday Night

NW wind 11 to 14 kt decreasing to 7 to 10 kt after midnight. Mostly clear. Seas 1 ft or less.

Friday

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

Friday Night

WSW wind 7 to 9 kt. Mostly clear. 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.