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Charleston Harbor MR

[NOTICE]

Last Update: 3:10 pm EST Feb 24, 2026
Forecast Valid: 7pm EST Feb 24, 2026-6pm EST Mar 3, 2026

Tonight

SW wind 8 to 11 kt. Increasing clouds. Seas 1 ft or less.

Wednesday

WSW wind 12 to 15 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday Night

SSW wind around 13 kt. Cloudy. Seas 1 ft or less.

Thursday

SSW wind 13 to 15 kt, with gusts as high as 23 kt. A chance of showers. Seas 1 ft or less.

Thursday Night

SSW wind around 12 kt. Showers likely, mainly after 1am. Seas 1 ft or less.

Friday

SW wind 9 to 12 kt becoming S in the afternoon. Showers, with thunderstorms also possible after 4pm. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Saturday

NNE wind 5 to 7 kt. A chance of showers. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A slight chance of showers. 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 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.