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Charleston Harbor MR

[NOTICE]

Last Update: 1:30 am EST Nov 18, 2025
Forecast Valid: 5am EST Nov 18, 2025-6pm EST Nov 24, 2025

Today

NE wind 5 to 7 kt becoming E in the morning. Sunny. Seas 1 ft or less.

Tonight

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

Wednesday

Variable winds less than 5 kt becoming WSW 5 to 7 kt in the morning. Sunny. Seas 1 ft or less.

Wednesday Night

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

Thursday

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

Thursday Night

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

Friday

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

Friday Night

SW wind around 7 kt. Mostly cloudy. Seas 1 ft or less.

Saturday

SW wind 7 to 10 kt. A slight chance of showers and thunderstorms after 1pm. 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 61 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.