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Charleston Harbor MR

[NOTICE]

Last Update: 4:12 pm EST Feb 28, 2026
Forecast Valid: 5pm EST Feb 28, 2026-6pm EST Mar 7, 2026

Tonight

Variable winds 5 kt or less. Patchy fog after 5am. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. Patchy fog before 9am. Seas 1 ft or less.

Sunday Night

Variable winds less than 5 kt becoming NE 5 to 8 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Monday

NE wind around 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 1 ft or less.

Monday Night

NE wind 11 to 16 kt, with gusts as high as 22 kt. A slight chance of showers. Seas 1 ft or less.

Tuesday

NE wind 8 to 10 kt becoming E in the afternoon. A slight chance of showers before 1pm. Seas 1 ft or less.

Tuesday Night

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

Wednesday

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

Wednesday Night

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

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 54 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.