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Charleston Harbor MR

[NOTICE]

Last Update: 2:40 am EDT May 12, 2026
Forecast Valid: 3am EDT May 12, 2026-6pm EDT May 18, 2026

Tuesday

ENE wind 15 to 18 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday Night

E wind 11 to 13 kt, with gusts as high as 20 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

E wind around 9 kt. Mostly sunny. Seas 1 ft or less.

Wednesday Night

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

Thursday

NW wind around 8 kt. Sunny. Seas 1 ft or less.

Thursday Night

Variable winds less than 5 kt becoming N around 6 kt after midnight. Clear. Seas 1 ft or less.

Friday

NNE wind 5 to 7 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

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

Saturday

Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

*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.