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Charleston Harbor MR

[NOTICE]

Last Update: 2:48 am EDT Jun 27, 2026
Forecast Valid: 3am EDT Jun 27, 2026-6pm EDT Jul 3, 2026

Saturday

SW wind 7 to 10 kt becoming S 10 to 13 kt in the afternoon. A slight chance of showers and thunderstorms before 8am. Seas 1 ft or less.

Saturday Night

SSW wind 9 to 11 kt. Mostly clear. Seas 1 ft or less.

Sunday

WSW wind 6 to 11 kt becoming SSW in the afternoon. A chance of showers and thunderstorms, mainly between 4pm and 5pm. Seas 1 ft or less.

Sunday Night

WSW wind 6 to 10 kt. A chance of showers and thunderstorms, mainly between 8pm and 2am. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 8pm. Seas 1 ft or less.

Tuesday

NE wind 8 to 12 kt becoming E in the afternoon. A slight chance of showers and thunderstorms between 8am and 2pm. Seas 1 ft or less.

Tuesday Night

E wind 5 to 9 kt. Mostly clear. Seas 1 ft or less.

Wednesday

NE wind 6 to 9 kt becoming E 9 to 12 kt in the afternoon. Mostly sunny. 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 84 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.