For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
⇑SSW 13kt
< 1ft
Tonight
SSW 12kt
< 1ft
Thursday
⇑SSW 14kt
< 1ft
Thursday Night
SSW 14kt
< 1ft
Friday
⇑SW 15kt
< 1ft
Friday Night
SW 13kt
< 1ft
Saturday
⇑WSW 14kt
< 1ft
Saturday Night
WSW 11kt
< 1ft
Sunday
SSW 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 6:52 am EDT Jul 8, 2026
Forecast Valid: 7am EDT Jul 8, 2026-6pm EDT Jul 14, 2026

View Nearby Observations

Detailed Forecast

Today

WSW wind 7 to 10 kt becoming SSW 10 to 13 kt in the afternoon. A chance of showers and thunderstorms, mainly between 4pm and 5pm. Seas 1 ft or less.

Tonight

SSW wind 10 to 12 kt. Partly cloudy. Seas 1 ft or less.

Thursday

W wind 8 to 11 kt becoming SSW 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Thursday Night

SSW wind 10 to 14 kt, with gusts as high as 21 kt. Mostly clear. Seas 1 ft or less.

Friday

W wind 9 to 12 kt becoming SW 12 to 15 kt in the afternoon. Winds could gust as high as 21 kt. Sunny. Seas 1 ft or less.

Friday Night

SW wind 10 to 13 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 ft or less.

Saturday

WSW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Saturday Night

WSW wind 7 to 11 kt. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.

Sunday

WNW wind 5 to 8 kt becoming SSW in the afternoon. A slight chance of showers and thunderstorms before 8am, then showers and thunderstorms likely after 2pm. 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 87 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.