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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
⇑ENE 7kt
< 1ft
Tonight
⇑NE 14kt
< 1ft
Monday
NNE 13kt
< 1ft
Monday Night
ENE 10kt
< 1ft
Tuesday
ESE 7kt
< 1ft
Tuesday Night
Light Wind
< 1ft
Wednesday
⇑SSW 13kt
< 1ft
Wednesday Night
SSW 9kt
< 1ft
Thursday
NNW 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:52 am EDT Apr 26, 2026
Forecast Valid: 5am EDT Apr 26, 2026-6pm EDT May 2, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming ENE 5 to 7 kt in the morning. A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Tonight

NE wind 6 to 9 kt increasing to 11 to 14 kt after midnight. Winds could gust as high as 20 kt. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Seas 1 ft or less.

Monday

NNE wind 11 to 13 kt becoming ENE in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

Monday Night

ENE wind 6 to 10 kt. Mostly clear. Seas 1 ft or less.

Tuesday

NE wind around 7 kt becoming ESE in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. A slight chance of showers after 2am. Seas 1 ft or less.

Wednesday

SSW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. A slight chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Wednesday Night

SSW wind 7 to 9 kt becoming W after midnight. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday

NNW wind around 8 kt. A chance of showers. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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.