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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Overnight
SE 6kt
< 1ft
Friday
⇑SE 8kt
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
⇑SSE 9kt
< 1ft
Saturday Night
S 7kt
< 1ft
Sunday
SSW 12kt
< 1ft
Sunday Night
SSW 7kt
< 1ft
Monday
NNE 13kt
< 1ft
Monday Night
NE 6kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 10:07 pm EDT Apr 2, 2026
Forecast Valid: 11pm EDT Apr 2, 2026-6pm EDT Apr 9, 2026

View Nearby Observations

Detailed Forecast

Overnight

SE wind around 6 kt. Isolated showers before 1am. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 5 to 8 kt in the morning. Mostly sunny. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SSE 5 to 9 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

S wind around 7 kt. Mostly clear. Seas 1 ft or less.

Sunday

SSW wind 7 to 12 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Sunday Night

SSW wind 5 to 7 kt becoming W after midnight. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Monday

NNE wind 10 to 13 kt. A chance of showers, mainly before 8am. Seas 1 ft or less.

Monday Night

NE wind around 6 kt. Cloudy. 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 66 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.