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Charleston, SC Local Forecast Office

5NM N Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]

Tonight
S 11kt
< 1ft
Wednesday
SSW 12kt
< 1ft
Wednesday Night
SSW 10kt
< 1ft
Thursday
SSW 10kt
< 1ft
Thursday Night
SW 7kt⇓
< 1ft
Friday
⇑E 13kt
< 1ft
Friday Night
E 10kt
< 1ft
Saturday
E 9kt
< 1ft
Saturday Night
E 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT May 26, 2026
Forecast Valid: 6pm EDT May 26, 2026-6pm EDT Jun 2, 2026

View Nearby Observations

Detailed Forecast

Tonight

S wind 8 to 11 kt. Increasing clouds. Seas 1 ft or less.

Wednesday

SSW wind 8 to 12 kt. A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Seas 1 ft or less.

Wednesday Night

SSW wind around 10 kt. A chance of showers and thunderstorms, mainly after 3am. Seas 1 ft or less.

Thursday

WSW wind 6 to 10 kt becoming SSW in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Thursday Night

SW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Showers and thunderstorms before 5am, then a chance of showers. 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 20 kt. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

Friday Night

E wind 6 to 10 kt becoming SE after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

Saturday

E wind 6 to 9 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Saturday Night

E wind around 7 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. 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.