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Charleston, SC Local Forecast Office

3NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Today
SW 15kt
2-3ft

Small Craft Advisory
Tonight
NNE 26kt
3-4ft

Small Craft Advisory
Friday
NE 17kt⇓
3-4ft

Small Craft Advisory
Friday Night
Light Wind
2-3ft
Saturday
⇑ENE 9kt
2ft
Saturday Night
E 6kt
2ft
Sunday
SSE 12kt
2ft
Sunday Night
S 11kt
3ft
Monday
SSW 17kt
3-4ft

Associated Zone Forecast which includes this point

Last Update: 8:32 am EDT Mar 12, 2026
Forecast Valid: 11am EDT Mar 12, 2026-6pm EDT Mar 18, 2026

View Nearby Observations

Detailed Forecast

Today

SW wind around 15 kt becoming WNW in the afternoon. Winds could gust as high as 21 kt. Showers and possibly a thunderstorm before 3pm, then a chance of showers. Seas 2 to 3 ft.

Tonight

N wind 22 to 26 kt becoming NE after midnight. Mostly cloudy, then gradually becoming mostly clear. Seas 3 to 4 ft.

Friday

NE wind 14 to 17 kt decreasing to 8 to 11 kt in the afternoon. Sunny. Seas 3 to 4 ft.

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas 2 to 3 ft.

Saturday

Variable winds less than 5 kt becoming ENE 5 to 9 kt in the afternoon. Sunny. Seas around 2 ft.

Saturday Night

E wind around 6 kt. A slight chance of showers and thunderstorms after 2am. Seas around 2 ft.

Sunday

ESE wind 7 to 12 kt becoming SSE in the afternoon. A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas around 2 ft.

Sunday Night

S wind around 11 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Seas around 3 ft.

Monday

SSW wind 13 to 17 kt, with gusts as high as 23 kt. Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Seas 3 to 4 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.