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Charleston Harbor MR

[NOTICE]

Last Update: 8:30 pm EDT Oct 22, 2026
Forecast Valid: 11pm EDT Oct 22, 2026-6pm EDT Oct 29, 2026

Overnight

Variable winds less than 5 kt becoming NNE around 6 kt after midnight. Clear. Seas 1 ft or less.

Friday

NNE wind 9 to 12 kt. Sunny. Seas 1 ft or less.

Friday Night

NNE wind 9 to 13 kt, with gusts as high as 21 kt. Mostly clear. Seas 1 ft or less.

Saturday

NE wind 16 to 20 kt, with gusts as high as 26 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

NE wind 14 to 17 kt, with gusts as high as 24 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 28 kt. Sunny. Seas 1 ft or less.

Sunday Night

NE wind 14 to 18 kt, with gusts as high as 25 kt. Mostly clear. Seas 1 ft or less.

Monday

NE wind 13 to 15 kt, with gusts as high as 21 kt. Sunny. Seas 1 ft or less.

Monday Night

NNE wind 7 to 9 kt. Mostly clear. 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.