News Headlines

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
⇑S 10kt
< 1ft
Tonight
S 10kt
< 1ft
Wednesday
S 11kt
< 1ft
Wednesday Night
S 9kt
< 1ft
Thursday
⇑SSE 10kt
< 1ft
Thursday Night
SSE 7kt
< 1ft
Friday
⇑SE 10kt
< 1ft
Friday Night
SE 8kt
< 1ft
Saturday
⇑SE 9kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 5:18 am EDT Aug 4, 2026
Forecast Valid: 8am EDT Aug 4, 2026-6pm EDT Aug 10, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Tonight

S wind 6 to 10 kt becoming SW after midnight. A chance of showers and thunderstorms, mainly after 1am. Seas 1 ft or less.

Wednesday

S wind 6 to 11 kt. Showers and thunderstorms likely, mainly before 11am. Seas 1 ft or less.

Wednesday Night

S wind 7 to 9 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly before 2pm. Seas 1 ft or less.

Thursday Night

SSE wind 5 to 7 kt. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly between 8am and 2pm. Seas 1 ft or less.

Friday Night

SE wind 5 to 8 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SE 5 to 9 kt in the morning. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms 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 86 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.