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Charleston Harbor MR

[NOTICE]

Last Update: 8:31 am EDT Apr 13, 2026
Forecast Valid: 1pm EDT Apr 13, 2026-6pm EDT Apr 19, 2026

This Afternoon

S wind 10 to 12 kt. Mostly sunny. Seas 1 ft or less.

Tonight

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 6 to 8 kt. Mostly clear. Seas 1 ft or less.

Wednesday

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

Wednesday Night

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

Thursday

SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Thursday Night

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

Friday

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

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 67 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.