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Charleston Harbor MR

[NOTICE]

Last Update: 8:32 pm EDT Aug 10, 2026
Forecast Valid: 10pm EDT Aug 10, 2026-6pm EDT Aug 17, 2026

Tonight

SW wind around 9 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

WSW wind 6 to 9 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

SW wind 7 to 9 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

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

Wednesday Night

SSW wind 6 to 10 kt becoming WSW after midnight. Partly cloudy. Seas 1 ft or less.

Thursday

W wind 5 to 9 kt becoming SW in the afternoon. Sunny. Seas 1 ft or less.

Thursday Night

SW wind 7 to 10 kt. Partly cloudy. Seas 1 ft or less.

Friday

WSW wind 5 to 8 kt becoming SSW 9 to 12 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Friday Night

SSW wind 8 to 11 kt. A chance of showers and thunderstorms before 2am. 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 86 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.