For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

This Afternoon
S 14kt
< 1ft
Tonight
S 11kt
< 1ft
Wednesday
SSW 13kt
< 1ft
Wednesday Night
SSW 11kt
< 1ft
Thursday
SW 11kt
< 1ft
Thursday Night
SW 7kt⇓
< 1ft
Friday
⇑ENE 13kt
< 1ft
Friday Night
E 9kt
< 1ft
Saturday
ENE 9kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT May 26, 2026
Forecast Valid: 3pm EDT May 26, 2026-6pm EDT Jun 2, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 14 kt, with gusts as high as 22 kt. Mostly sunny. Seas 1 ft or less.

Tonight

S wind 9 to 11 kt. Increasing clouds. Seas 1 ft or less.

Wednesday

SSW wind 10 to 13 kt. A slight chance of showers before 11am, then a slight chance of showers and thunderstorms after noon. Seas 1 ft or less.

Wednesday Night

SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Thursday

SW wind 7 to 11 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Thursday Night

SW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Showers and thunderstorms before 5am, then a chance of showers. Seas 1 ft or less.

Friday

NE wind 7 to 10 kt becoming ENE 10 to 13 kt in the afternoon. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

Friday Night

E wind 5 to 9 kt becoming SE in the evening. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

Saturday

E wind 6 to 9 kt becoming NE in the morning. Showers and possibly a thunderstorm. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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.