For More Weather Information:

Charleston, SC Local Forecast Office

3NM N Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Tonight
Light Wind
< 1ft
Friday
⇑SSW 8kt
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
NNE 8kt
< 1ft
Saturday Night
NNE 6kt
< 1ft
Sunday
NNE 6kt⇓
< 1ft
Sunday Night
Light Wind
< 1ft
Monday
Light Wind
< 1ft
Monday Night
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 1:30 pm EST Nov 5, 2026
Forecast Valid: 7pm EST Nov 5, 2026-6pm EST Nov 12, 2026

View Nearby Observations

Detailed Forecast

Tonight

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

Friday

Variable winds less than 5 kt becoming SSW 5 to 8 kt in the morning. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Showers likely, mainly before 7pm. Seas 1 ft or less.

Saturday

NNE wind 5 to 8 kt. Sunny. Seas 1 ft or less.

Saturday Night

NNE wind around 6 kt. Partly cloudy. Seas 1 ft or less.

Sunday

NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

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

Monday

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

Monday 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 71 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.