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Charleston, SC Local Forecast Office

5NM N Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]

Today
SSW 9kt
< 1ft
Tonight
Light Wind
< 1ft
Saturday
SSW 10kt
< 1ft
Saturday Night
S 9kt
< 1ft
Sunday
WSW 12kt
< 1ft
Sunday Night
N 11kt
< 1ft
Monday
NNE 11kt
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
NNE 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 4:42 am EDT Apr 17, 2026
Forecast Valid: 6am EDT Apr 17, 2026-6pm EDT Apr 23, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

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

Saturday

SSW wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

S wind around 9 kt. Mostly cloudy. Seas 1 ft or less.

Sunday

SW wind 8 to 12 kt becoming W in the afternoon. Winds could gust as high as 21 kt. A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Sunday Night

N wind around 11 kt. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Seas 1 ft or less.

Monday

NNE wind 9 to 11 kt becoming ENE in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Monday Night

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

Tuesday

NNE wind around 8 kt becoming E in the afternoon. Sunny. Seas 1 ft or less.

Winds and seas 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.