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Charleston Harbor MR

[NOTICE]

Last Update: 7:30 pm EST Mar 4, 2026
Forecast Valid: 10pm EST Mar 4, 2026-6pm EDT Mar 11, 2026

Tonight

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

Thursday

Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. Areas of dense fog before noon. Seas 1 ft or less.

Thursday Night

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

Friday

Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Friday Night

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

Saturday

Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Partly sunny. Seas 1 ft or less.

Saturday Night

Variable winds less than 5 kt becoming SSW around 6 kt in the evening. Mostly cloudy. Seas 1 ft or less.

Sunday

SSW wind 6 to 9 kt. A chance of showers. Seas 1 ft or less.

Sunday Night

SSW wind around 7 kt. A chance of showers. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 56 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.