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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Tuesday
S 13kt
< 1ft
Tuesday Night
S 9kt
< 1ft
Wednesday
SSW 13kt
< 1ft
Wednesday Night
SSW 10kt
< 1ft
Thursday
WSW 9kt
< 1ft
Thursday Night
SW 8kt⇓
< 1ft
Friday
E 12kt
< 1ft
Friday Night
SE 8kt
< 1ft
Saturday
NE 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:30 am EDT May 26, 2026
Forecast Valid: 4am EDT May 26, 2026-6pm EDT Jun 1, 2026

View Nearby Observations

Detailed Forecast

Tuesday

S wind 9 to 13 kt. A chance of showers and thunderstorms, mainly before 2pm. Seas 1 ft or less.

Tuesday Night

S wind around 9 kt. A slight chance of showers between 1am and 2am. Seas 1 ft or less.

Wednesday

SSW wind 9 to 13 kt. A chance of showers and thunderstorms, mainly before 1pm. Seas 1 ft or less.

Wednesday Night

SSW wind around 10 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

Thursday

WSW wind 7 to 9 kt. A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Thursday Night

SW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.

Friday

NE wind 7 to 12 kt becoming ESE in the afternoon. A chance of showers, with thunderstorms also possible after 8am. Seas 1 ft or less.

Friday Night

SE wind 5 to 8 kt becoming S after midnight. Showers and possibly a thunderstorm. Seas 1 ft or less.

Saturday

NNW wind 6 to 11 kt becoming NE in the afternoon. 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.