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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
SSW 17kt
< 1ft

Small Craft Advisory
Tonight
SSW 11kt
< 1ft
Friday
⇑SSE 7kt
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
N 6kt
< 1ft
Saturday Night
Light Wind
< 1ft
Sunday
⇑ESE 6kt
< 1ft
Sunday Night
⇑NE 9kt
< 1ft
Monday
NE 14kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 7:30 am EST Feb 26, 2026
Forecast Valid: 8am EST Feb 26, 2026-6pm EST Mar 4, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EST THIS AFTERNOON...

Today

SSW wind 14 to 17 kt, with gusts as high as 26 kt. A chance of showers, mainly after 4pm. Seas 1 ft or less.

Tonight

SSW wind 6 to 11 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Showers likely before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Seas 1 ft or less.

Saturday

N wind around 6 kt. A slight chance of showers before 1pm. Seas 1 ft or less.

Saturday Night

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

Sunday

Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

Variable winds less than 5 kt becoming NE 5 to 9 kt after midnight. Partly cloudy. Seas 1 ft or less.

Monday

NE wind 11 to 14 kt, with gusts as high as 20 kt. A chance of showers. Seas 1 ft or less.

*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.