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Charleston Harbor MR

[NOTICE]

Last Update: 2:45 am EDT Oct 13, 2026
Forecast Valid: 6am EDT Oct 13, 2026-6pm EDT Oct 19, 2026

Today

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Wednesday

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

Wednesday Night

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

Thursday

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

Thursday Night

Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

Friday Night

SW wind 7 to 10 kt becoming N 12 to 17 kt after midnight. Winds could gust as high as 26 kt. Partly cloudy. Seas 1 ft or less.

Saturday

NNE wind around 19 kt, with gusts as high as 27 kt. Mostly sunny. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 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.