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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Tonight
SSW 12kt
< 1ft
Sunday
SSW 12kt
< 1ft
Sunday Night
SW 10kt
< 1ft
Monday
⇑SSE 7kt
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
ENE 12kt
< 1ft
Tuesday Night
E 9kt⇓
< 1ft
Wednesday
⇑E 11kt
< 1ft
Wednesday Night
ESE 7kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:30 pm EDT Jun 27, 2026
Forecast Valid: 5pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSW wind 9 to 12 kt. Mostly clear. Seas 1 ft or less.

Sunday

WSW wind 7 to 12 kt becoming SSW in the afternoon. A chance of showers and thunderstorms, mainly between 4pm and 5pm. Seas 1 ft or less.

Sunday Night

SW wind 5 to 10 kt. A chance of showers and thunderstorms, mainly between 1am and 2am. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Seas 1 ft or less.

Tuesday

ENE wind 7 to 12 kt. A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm. Seas 1 ft or less.

Tuesday Night

E wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Wednesday

E wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. 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 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.