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Charleston, SC Local Forecast Office

3NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Today
SE 10kt
2-3ft
Tonight
SE 8kt
3ft
Sunday
⇑S 12kt
2-3ft
Sunday Night
S 10kt⇓
3ft
Monday
⇑NNE 18kt
3ft
Monday Night
NE 12kt
3ft
Tuesday
NE 18kt
3-4ft
Tuesday Night
NE 23kt
4ft
Wednesday
NE 28kt
5-6ft

Associated Zone Forecast which includes this point

Last Update: 7:21 am EDT Apr 4, 2026
Forecast Valid: 7am EDT Apr 4, 2026-6pm EDT Apr 10, 2026

View Nearby Observations

Detailed Forecast

Today

SE wind 5 to 10 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 3 ft.

Tonight

SE wind around 8 kt becoming S after midnight. Partly cloudy. Seas around 3 ft.

Sunday

S wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas 2 to 3 ft.

Sunday Night

S wind 5 to 10 kt becoming variable and less than 5 kt. Showers and thunderstorms likely. Seas around 3 ft.

Monday

N wind 12 to 15 kt becoming NNE 15 to 18 kt in the afternoon. A chance of showers. Seas around 3 ft.

Monday Night

NE wind 10 to 12 kt. A slight chance of showers. Seas around 3 ft.

Tuesday

NE wind 16 to 18 kt, with gusts as high as 24 kt. A slight chance of showers before 2pm. Seas 3 to 4 ft.

Tuesday Night

NE wind 18 to 23 kt. A slight chance of showers. Seas around 4 ft.

Wednesday

NE wind around 28 kt, with gusts as high as 36 kt. A chance of showers. Seas 5 to 6 ft.

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.