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Charleston Harbor MR

[NOTICE]

Last Update: 8:30 pm EDT Jun 11, 2026
Forecast Valid: 12am EDT Jun 12, 2026-6pm EDT Jun 18, 2026

Overnight

SW wind around 10 kt. Clear. Seas 1 ft or less.

Friday

WSW wind 5 to 8 kt becoming SSW 8 to 11 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Friday Night

SW wind 8 to 10 kt. Partly cloudy. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Saturday Night

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

Sunday

SSW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Sunday Night

SW wind 9 to 12 kt. A chance of showers and thunderstorms, mainly between 8pm and 2am. Seas 1 ft or less.

Monday

SW wind 8 to 13 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

SW wind 8 to 11 kt. A chance of showers and thunderstorms, mainly 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 81 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.