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Charleston Harbor MR

[NOTICE]

Last Update: 7:05 am EDT Oct 15, 2026
Forecast Valid: 12pm EDT Oct 15, 2026-6pm EDT Oct 21, 2026

This Afternoon

Variable winds less than 5 kt becoming S around 6 kt. Sunny. Seas 1 ft or less.

Tonight

S wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SSW 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

SSW wind around 10 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.

Saturday

N wind 16 to 18 kt, with gusts as high as 24 kt. A chance of showers, mainly after 2pm. Seas 1 ft or less.

Saturday Night

NNE wind around 18 kt, with gusts as high as 27 kt. A chance of showers before 8pm. Seas 1 ft or less.

Sunday

NNE wind 18 to 20 kt, with gusts as high as 28 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

NNE wind 14 to 17 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 1 ft or less.

Monday

NE wind 15 to 18 kt. A slight chance of showers. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 77 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.