For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
W 10kt
< 1ft
Tonight
SW 10kt
< 1ft
Tuesday
W 11kt
< 1ft
Tuesday Night
WSW 10kt
< 1ft
Wednesday
WSW 14kt
< 1ft
Wednesday Night
SW 11kt
< 1ft
Thursday
⇑SW 16kt
< 1ft
Thursday Night
SSW 13kt
< 1ft
Juneteenth
WSW 17kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 7:17 am EDT Jun 15, 2026
Forecast Valid: 8am EDT Jun 15, 2026-6pm EDT Jun 21, 2026

View Nearby Observations

Detailed Forecast

Today

W wind around 10 kt. Mostly sunny. Seas 1 ft or less.

Tonight

SW wind 8 to 10 kt becoming W after midnight. Mostly cloudy. Seas 1 ft or less.

Tuesday

W wind 6 to 11 kt. A slight chance of showers and thunderstorms between 1pm and 3pm. Seas 1 ft or less.

Tuesday Night

WSW wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Wednesday

WSW wind 10 to 14 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Wednesday Night

SW wind around 11 kt. A chance of thunderstorms before 8pm. Seas 1 ft or less.

Thursday

SW wind 10 to 13 kt increasing to 13 to 16 kt in the afternoon. Winds could gust as high as 22 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Thursday Night

SSW wind 11 to 13 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.

Juneteenth

WSW wind 12 to 17 kt, with gusts as high as 26 kt. A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. 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 83 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.