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Charleston Harbor MR

[NOTICE]

Last Update: 8:30 am EDT Aug 7, 2026
Forecast Valid: 1pm EDT Aug 7, 2026-6pm EDT Aug 13, 2026

This Afternoon

SE wind 8 to 10 kt. Mostly sunny. Seas 1 ft or less.

Tonight

SE wind 5 to 8 kt. A chance of showers and thunderstorms after 3am. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. Showers and thunderstorms likely, mainly before 4pm. Seas 1 ft or less.

Saturday Night

SSE wind around 6 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

Sunday Night

SW wind 6 to 8 kt. A chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

Monday Night

SSW wind around 8 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

WSW wind 6 to 11 kt. A slight chance of showers and thunderstorms after 2pm. 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 85 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.