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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Monday
NE 12kt
< 1ft
Monday Night
NE 11kt
< 1ft
Tuesday
WSW 12kt
< 1ft
Tuesday Night
N 9kt
< 1ft
Wednesday
NNE 9kt
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
⇑W 6kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
NE 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 1:30 am EST Dec 1, 2025
Forecast Valid: 3am EST Dec 1, 2025-6pm EST Dec 7, 2025

View Nearby Observations

Detailed Forecast

Monday

NE wind around 12 kt. Mostly cloudy. Seas 1 ft or less.

Monday Night

NE wind 8 to 11 kt. A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 2am, then showers and possibly a thunderstorm after 2am. Seas 1 ft or less.

Tuesday

WSW wind 10 to 12 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Tuesday Night

WNW wind around 9 kt becoming N after midnight. Partly cloudy. Seas 1 ft or less.

Wednesday

NNE wind 5 to 9 kt. 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 W around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A slight chance of showers. Seas 1 ft or less.

Friday

NE wind 6 to 8 kt. A chance of showers. 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 60 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.