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Charleston, SC Local Forecast Office

5NM N Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]

Tonight
⇑NNE 14kt
< 1ft
Tuesday
NE 17kt
< 1ft
Tuesday Night
ENE 12kt
< 1ft
Wednesday
ENE 10kt
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
⇑SSE 6kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
SSW 11kt
< 1ft
Friday Night
WNW 12kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:42 pm EDT Mar 23, 2026
Forecast Valid: 4pm EDT Mar 23, 2026-6pm EDT Mar 30, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH

Tonight

W wind 6 to 9 kt becoming NNE 11 to 14 kt in the evening. Winds could gust as high as 24 kt. A slight chance of showers and thunderstorms between 7pm and 10pm. Seas 1 ft or less.

Tuesday

NE wind around 17 kt, with gusts as high as 28 kt. Partly sunny. Seas 1 ft or less.

Tuesday Night

ENE wind 10 to 12 kt, with gusts as high as 20 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

ENE wind around 10 kt. A slight chance of showers before 2pm. Seas 1 ft or less.

Wednesday Night

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

Thursday

Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

Thursday Night

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

Friday

SSW wind 6 to 11 kt. Sunny. Seas 1 ft or less.

Friday Night

SSW wind 9 to 12 kt becoming WNW after midnight. Partly cloudy. 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.