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Charleston Harbor MR

[NOTICE]

Last Update: 7:20 am EDT Apr 5, 2026
Forecast Valid: 8am EDT Apr 5, 2026-6pm EDT Apr 11, 2026

Today

SSW wind 7 to 12 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Tonight

SSW wind 6 to 9 kt becoming NNW after midnight. Showers and thunderstorms likely before 2am, then a chance of showers. Seas 1 ft or less.

Monday

NNE wind 11 to 16 kt. Mostly cloudy. Seas 1 ft or less.

Monday Night

NE wind around 6 kt. Cloudy. Seas 1 ft or less.

Tuesday

NNE wind 9 to 13 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday Night

NE wind 12 to 15 kt increasing to 17 to 20 kt after midnight. Partly cloudy. Seas 1 ft or less.

Wednesday

NE wind 19 to 22 kt, with gusts as high as 33 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

ENE wind 14 to 17 kt, with gusts as high as 24 kt. A slight chance of showers. Seas 1 ft or less.

Thursday

NE wind around 16 kt, with gusts as high as 24 kt. A chance of showers. 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 67 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.