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Charleston Harbor MR

[NOTICE]

Last Update: 2:35 pm EDT Apr 12, 2026
Forecast Valid: 6pm EDT Apr 12, 2026-6pm EDT Apr 19, 2026

Tonight

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

Monday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Monday Night

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

Tuesday

Variable winds less than 5 kt becoming SSW 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

SSW wind around 7 kt. Mostly clear. Seas 1 ft or less.

Wednesday

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

Wednesday Night

S wind around 7 kt. Mostly clear. Seas 1 ft or less.

Thursday

SSW wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Thursday Night

SSW wind 6 to 8 kt. Partly cloudy. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 66 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.