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Charleston Harbor MR

[NOTICE]

Last Update: 2:50 pm EDT Apr 29, 2026
Forecast Valid: 6pm EDT Apr 29, 2026-6pm EDT May 6, 2026

Tonight

SSW wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. A slight chance of showers after 4am. Seas 1 ft or less.

Thursday

NW wind around 6 kt becoming SE in the afternoon. Showers and thunderstorms likely, mainly before 11am. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A slight chance of showers before 7pm. Seas 1 ft or less.

Friday

ENE wind around 11 kt. A chance of showers after 2pm. Seas 1 ft or less.

Friday Night

ENE wind around 6 kt becoming variable and less than 5 kt after midnight. Showers likely, mainly after 2am. Seas 1 ft or less.

Saturday

N wind 8 to 13 kt. Showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

Saturday Night

N wind 7 to 9 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

Sunday

N wind 7 to 11 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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.