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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Tonight
W 16kt⇓
< 1ft
Columbus Day
W 10kt
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
Light Wind
< 1ft
Tuesday Night
Light Wind
< 1ft
Wednesday
⇑SSE 6kt
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
Light Wind
< 1ft
Thursday Night
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT Oct 11, 2026
Forecast Valid: 8pm EDT Oct 11, 2026-6pm EDT Oct 18, 2026

View Nearby Observations

Detailed Forecast

Tonight

W wind 13 to 16 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 23 kt. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

Columbus Day

W wind around 10 kt becoming NW in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

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

Tuesday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Wednesday

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

Wednesday Night

Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly clear. 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 76 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.