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Charleston, SC Local Forecast Office

3NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Overnight
ENE 25kt
6ft

Small Craft Advisory
Sunday
ENE 20kt
7ft

Small Craft Advisory
Sunday Night
E 11kt
4-5ft

Small Craft Advisory
Monday
E 10kt
4ft

Small Craft Advisory
Monday Night
SE 6kt
3-4ft
Tuesday
⇑SE 10kt
3ft
Tuesday Night
S 8kt
3ft
Wednesday
SSE 10kt
2-3ft
Wednesday Night
SSE 8kt
2-3ft

Associated Zone Forecast which includes this point

Last Update: 6:32 pm EDT Mar 28, 2026
Forecast Valid: 12am EDT Mar 29, 2026-6pm EDT Apr 4, 2026

View Nearby Observations

Detailed Forecast

Overnight

ENE wind around 25 kt. Partly cloudy. Seas around 6 ft.

Sunday

ENE wind 16 to 20 kt. Mostly sunny. Seas 7 ft subsiding to 5 ft.

Sunday Night

E wind 7 to 11 kt. Partly cloudy. Seas 4 to 5 ft.

Monday

E wind 6 to 10 kt. Mostly sunny. Seas around 4 ft.

Monday Night

SE wind around 6 kt. Partly cloudy. Seas 3 to 4 ft.

Tuesday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. A slight chance of showers, with thunderstorms also possible after 2pm. Seas around 3 ft.

Tuesday Night

S wind 6 to 8 kt. A slight chance of thunderstorms before 8pm. Seas around 3 ft.

Wednesday

SSE wind 5 to 10 kt. Partly sunny. Seas 2 to 3 ft.

Wednesday Night

SSE wind around 8 kt. Partly cloudy. Seas 2 to 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.