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Charleston Harbor MR

[NOTICE]

Last Update: 2:30 am EDT May 18, 2026
Forecast Valid: 4am EDT May 18, 2026-6pm EDT May 24, 2026

Monday

Variable winds less than 5 kt becoming SE 8 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming ESE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

SE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Thursday Night

SSE wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. A chance of showers and thunderstorms. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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.