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Charleston, SC Local Forecast Office

21NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Today
SSW 9kt
2ft
Tonight
SSW 9kt
2ft
Monday
W 8kt
1-2ft
Monday Night
SW 8kt
1-2ft
Tuesday
E 7kt
1ft
Tuesday Night
ENE 7kt
1ft
Wednesday
ENE 12kt
1-2ft
Wednesday Night
E 10kt
2ft
Thursday
ESE 10kt
2ft

Associated Zone Forecast which includes this point

Last Update: 6:47 am EDT Jul 20, 2025
Forecast Valid: 11am EDT Jul 20, 2025-6pm EDT Jul 26, 2025

View Nearby Observations

Detailed Forecast

Today

W wind 7 to 9 kt becoming S in the afternoon. Sunny. Seas around 2 ft.

Tonight

SSW wind 7 to 9 kt becoming WSW after midnight. A slight chance of showers and thunderstorms before 11pm. Seas around 2 ft.

Monday

W wind 6 to 8 kt becoming SW in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 to 2 ft.

Monday Night

SW wind 6 to 8 kt becoming W after midnight. A chance of showers and thunderstorms, mainly before 2am. Seas 1 to 2 ft.

Tuesday

WNW wind 5 to 7 kt becoming E in the afternoon. Showers and thunderstorms likely, mainly after 2pm. Seas around 1 ft.

Tuesday Night

ENE wind around 7 kt. Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Seas around 1 ft.

Wednesday

ENE wind 8 to 12 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms after 2pm. Seas 1 to 2 ft.

Wednesday Night

E wind 8 to 10 kt. Showers and thunderstorms, mainly before 8pm. Seas around 2 ft.

Thursday

ESE wind 7 to 10 kt. Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Seas around 2 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.