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Charleston, SC Local Forecast Office

5NM N Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]

Tonight
ESE 10kt⇓
< 1ft
Saturday
⇑S 6kt
< 1ft
Saturday Night
⇑NE 12kt
< 1ft
Sunday
E 17kt
< 1ft
Sunday Night
SE 10kt
< 1ft
Monday
SSE 9kt
< 1ft
Monday Night
S 6kt⇓
< 1ft
Tuesday
ENE 9kt
< 1ft
Tuesday Night
ENE 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 6:37 pm EDT May 29, 2026
Forecast Valid: 7pm EDT May 29, 2026-6pm EDT Jun 5, 2026

View Nearby Observations

Detailed Forecast

Tonight

ESE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly between 4am and 5am. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Showers and thunderstorms likely, mainly before noon, then showers likely and possibly a thunderstorm after 4pm. Seas 1 ft or less.

Saturday Night

Variable winds less than 5 kt becoming NE 7 to 12 kt after midnight. Showers and thunderstorms likely. Seas 1 ft or less.

Sunday

E wind 15 to 17 kt, with gusts as high as 27 kt. Showers likely, mainly before 8am. Seas 1 ft or less.

Sunday Night

SE wind 7 to 10 kt. Showers likely and possibly a thunderstorm, mainly after 2am. Seas 1 ft or less.

Monday

SSE wind 6 to 9 kt. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

S wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

Tuesday

N wind 5 to 9 kt becoming ENE in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

Tuesday Night

ENE wind around 8 kt. A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. 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.