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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
⇑ESE 11kt
< 1ft
Tonight
E 8kt
< 1ft
Tuesday
⇑ESE 13kt
< 1ft
Tuesday Night
S 11kt
< 1ft
Wednesday
S 15kt
< 1ft
Wednesday Night
S 12kt
< 1ft
Thursday
SSW 14kt
< 1ft
Thursday Night
SSW 12kt
< 1ft
Friday
SSW 14kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 7:07 am EDT Jul 14, 2025
Forecast Valid: 7am EDT Jul 14, 2025-6pm EDT Jul 20, 2025

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming ESE 6 to 11 kt in the morning. A slight chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms after noon. Seas 1 ft or less.

Tonight

E wind 6 to 8 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Tuesday

ESE wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

Tuesday Night

S wind around 11 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

Wednesday

S wind 10 to 15 kt. 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.

Wednesday Night

S wind around 12 kt. A chance of showers before 8pm, then a slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Thursday

SSW wind 10 to 14 kt. A chance of showers and thunderstorms, mainly between 8am and 2pm. Seas 1 ft or less.

Thursday Night

SSW wind 10 to 12 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Friday

SSW wind 9 to 14 kt. A chance of showers and thunderstorms, mainly 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 85 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.