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Charleston, SC Local Forecast Office

5NM N Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]

This Afternoon
SSW 12kt
< 1ft
Tonight
SW 10kt
< 1ft
Thursday
WSW 10kt
< 1ft
Thursday Night
SW 6kt⇓
< 1ft
Friday
⇑E 13kt
< 1ft
Friday Night
ESE 8kt⇓
< 1ft
Saturday
WSW 10kt
< 1ft
Saturday Night
ENE 7kt
< 1ft
Sunday
ENE 14kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 8:32 am EDT May 27, 2026
Forecast Valid: 2pm EDT May 27, 2026-6pm EDT Jun 2, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SSW wind around 12 kt. A chance of showers and thunderstorms after 3pm. Seas 1 ft or less.

Tonight

SW wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday

WSW wind 6 to 10 kt. A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Thursday Night

SW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.

Friday

E wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Winds could gust as high as 21 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas 1 ft or less.

Friday Night

ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Saturday

WSW wind 5 to 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Saturday Night

ENE wind around 7 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Seas 1 ft or less.

Sunday

ENE wind 10 to 14 kt, with gusts as high as 21 kt. A chance of showers, with thunderstorms also possible after 2pm. 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.