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Charleston Harbor MR

[NOTICE]

Last Update: 5:25 am EDT Jun 26, 2026
Forecast Valid: 7am EDT Jun 26, 2026-6pm EDT Jul 2, 2026

Today

Variable winds less than 5 kt becoming S 11 to 16 kt in the morning. Sunny. Seas 1 ft or less.

Tonight

SSW wind 11 to 14 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms after 10pm. Seas 1 ft or less.

Saturday

SW wind 8 to 13 kt. A chance of showers and thunderstorms, mainly before 7am. Seas 1 ft or less.

Saturday Night

SW wind 9 to 12 kt. Partly cloudy. Seas 1 ft or less.

Sunday

WSW wind 7 to 11 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Sunday Night

WSW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms before 2am. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming ESE 5 to 8 kt in the afternoon. Showers and thunderstorms likely, mainly after 2pm. Seas 1 ft or less.

Monday Night

E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Showers and thunderstorms likely, mainly before 8pm. Seas 1 ft or less.

Tuesday

NE wind 7 to 12 kt becoming E in the afternoon. A slight chance of showers and thunderstorms before 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 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.