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Charleston Harbor MR

[NOTICE]

Last Update: 4:48 am EDT Jun 22, 2026
Forecast Valid: 5am EDT Jun 22, 2026-6pm EDT Jun 28, 2026

Today

WSW wind 7 to 10 kt increasing to 11 to 14 kt in the afternoon. A slight chance of showers and thunderstorms after 4pm. Seas 1 ft or less.

Tonight

SW wind 10 to 15 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Tuesday

WSW wind 10 to 13 kt. A chance of showers and thunderstorms between 2pm and 3pm. Seas 1 ft or less.

Tuesday Night

WSW wind 5 to 9 kt becoming NNW after midnight. A slight chance of showers and thunderstorms between 7pm and 2am. Seas 1 ft or less.

Wednesday

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

Wednesday Night

ESE wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Thursday

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

Thursday Night

SSE wind 6 to 8 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.

Friday

SSW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. A chance of showers and thunderstorms, mainly 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 83 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.