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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Saturday
⇑E 6kt
< 1ft
Saturday Night
E 6kt⇓
< 1ft
Sunday
⇑ESE 7kt
< 1ft
Sunday Night
Light Wind
< 1ft
Monday
⇑ESE 7kt
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
⇑SE 7kt
< 1ft
Tuesday Night
SSE 6kt⇓
< 1ft
Wednesday
⇑SSE 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 4:37 am EDT Aug 29, 2026
Forecast Valid: 4am EDT Aug 29, 2026-6pm EDT Sep 4, 2026

View Nearby Observations

Detailed Forecast

Saturday

Variable winds less than 5 kt becoming E around 6 kt in the morning. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog between 7am and 9am. Seas 1 ft or less.

Saturday Night

E wind around 6 kt becoming variable and less than 5 kt in the evening. Showers and thunderstorms likely, mainly before 10pm. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming ESE 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, mainly between 1pm and 5pm. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 7pm. Seas 1 ft or less.

Monday

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

Monday Night

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming SE 5 to 7 kt in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. Sunny. 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.