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Charleston, SC Local Forecast Office

5NM NW Cape Romain Buoy MR

Marine Point Forecast

[NOTICE]

Late Afternoon
SE 11kt
3ft
Tonight
⇑S 20kt
3-4ft

Small Craft Advisory
Monday
SSW 25kt
5-6ft

Small Craft Advisory
Monday Night
WNW 24kt
6ft

Small Craft Advisory
Tuesday
NW 15kt⇓
2-3ft

Small Craft Advisory
Tuesday Night
NW 9kt
2ft
Wednesday
NE 14kt
3ft
Wednesday Night
NNE 7kt
3ft
Thursday
N 9kt
3ft

Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT Mar 15, 2026
Forecast Valid: 5pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT

Late Afternoon

SE wind around 11 kt. A slight chance of showers and thunderstorms. Seas around 3 ft.

Tonight

S wind 11 to 14 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 26 kt. Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Seas 3 to 4 ft.

Monday

SSW wind 21 to 25 kt, with gusts as high as 34 kt. Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Seas 5 to 6 ft.

Monday Night

WNW wind 21 to 24 kt. Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Seas 6 ft subsiding to 4 ft.

Tuesday

NW wind 12 to 15 kt decreasing to 9 to 12 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Tuesday Night

NW wind around 9 kt becoming N after midnight. Partly cloudy. Seas around 2 ft.

Wednesday

NE wind 11 to 14 kt. Mostly sunny. Seas around 3 ft.

Wednesday Night

NNE wind around 7 kt. Partly cloudy. Seas around 3 ft.

Thursday

N wind 7 to 9 kt becoming ENE in the afternoon. Mostly sunny. Seas around 3 ft.

*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.