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Charleston Harbor MR

[NOTICE]

Last Update: 8:30 am EDT Apr 1, 2026
Forecast Valid: 11am EDT Apr 1, 2026-6pm EDT Apr 7, 2026

Today

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

Tonight

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

Thursday

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

Thursday Night

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

Friday

SE wind 5 to 8 kt. 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 SSE 5 to 9 kt in the afternoon. A slight chance of showers and thunderstorms before 2pm. Seas 1 ft or less.

Saturday Night

S wind around 6 kt. Mostly clear. Seas 1 ft or less.

Sunday

SSW wind 6 to 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 64 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.