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Charleston, SC Local Forecast Office

5NM N Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]

Today
⇑NNE 6kt
< 1ft
Tonight
N 6kt
< 1ft
Monday
N 11kt
< 1ft
Monday Night
N 11kt
< 1ft
Tuesday
N 9kt
< 1ft
Tuesday Night
Light Wind
< 1ft
Wednesday
⇑SW 10kt
< 1ft
Wednesday Night
WSW 8kt
< 1ft
Thursday
WSW 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 1:30 am EST Dec 7, 2025
Forecast Valid: 5am EST Dec 7, 2025-6pm EST Dec 13, 2025

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming NNE around 6 kt in the morning. A chance of showers before 3pm, then a slight chance of showers after 5pm. Seas 1 ft or less.

Tonight

N wind around 6 kt. A chance of showers, mainly after 2am. Seas 1 ft or less.

Monday

N wind 8 to 11 kt. A chance of showers, mainly between 7am and 1pm. Seas 1 ft or less.

Monday Night

N wind 9 to 11 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

N wind 5 to 9 kt. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

Wednesday Night

WSW wind around 8 kt. Mostly clear. Seas 1 ft or less.

Thursday

W wind around 7 kt becoming SW in the afternoon. 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.