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Charleston Harbor MR

[NOTICE]

Last Update: 8:32 am EDT Oct 21, 2026
Forecast Valid: 10am EDT Oct 21, 2026-6pm EDT Oct 27, 2026

Today

N wind 8 to 10 kt. Sunny. Seas 1 ft or less.

Tonight

NNE wind around 7 kt. Clear. Seas 1 ft or less.

Thursday

NNE wind 5 to 9 kt. Sunny. Seas 1 ft or less.

Thursday Night

Variable winds less than 5 kt becoming NNE 5 to 7 kt after midnight. Clear. Seas 1 ft or less.

Friday

NE wind 10 to 13 kt. Sunny. Seas 1 ft or less.

Friday Night

NNE wind 12 to 17 kt, with gusts as high as 25 kt. Mostly clear. Seas 1 ft or less.

Saturday

NNE wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 28 kt. Sunny. Seas 1 ft or less.

Saturday Night

NE wind 15 to 19 kt, with gusts as high as 26 kt. Mostly clear. Seas 1 ft or less.

Sunday

NE wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 29 kt. Sunny. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 71 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.