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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

This Afternoon
ENE 7kt
< 1ft
Tonight
Light Wind
< 1ft
Friday
ENE 13kt
< 1ft
Friday Night
ENE 14kt
< 1ft

Small Craft Advisory
Saturday
E 22kt
< 1ft

Small Craft Advisory
Saturday Night
E 19kt⇓
< 1ft

Small Craft Advisory
Sunday
SSW 16kt
< 1ft
Sunday Night
SSW 12kt
< 1ft
Columbus Day
W 10kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:47 pm EDT Oct 8, 2026
Forecast Valid: 3pm EDT Oct 8, 2026-6pm EDT Oct 15, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE FRIDAY NIGHT THROUGH

This Afternoon

ENE wind around 7 kt. Mostly cloudy. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.

Friday

ENE wind 8 to 13 kt, with gusts as high as 20 kt. Cloudy. Seas 1 ft or less.

Friday Night

ENE wind around 14 kt, with gusts as high as 23 kt. Showers likely, with thunderstorms also possible after 5am. Seas 1 ft or less.

Saturday

E wind 19 to 22 kt, with gusts as high as 30 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

Saturday Night

E wind 16 to 19 kt becoming SE 11 to 14 kt after midnight. Winds could gust as high as 27 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Sunday

SSW wind 11 to 16 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Sunday Night

SSW wind 9 to 12 kt becoming W after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.

Columbus Day

W wind 8 to 10 kt. Sunny. 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.