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Charleston, SC Local Forecast Office

3NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Today
⇑S 9kt
1ft
Tonight
S 10kt
1-2ft
Sunday
S 12kt
1-2ft
Sunday Night
SW 13kt
2ft
Monday
WSW 11kt
2ft
Monday Night
WSW 12kt
2ft
Tuesday
WSW 13kt
2ft
Tuesday Night
SW 12kt
2ft
Wednesday
WSW 11kt
2ft

Associated Zone Forecast which includes this point

Last Update: 6:42 am EDT Jun 13, 2026
Forecast Valid: 8am EDT Jun 13, 2026-6pm EDT Jun 19, 2026

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Detailed Forecast

Today

Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas around 1 ft.

Tonight

S wind 7 to 10 kt becoming SW in the evening. A chance of showers and thunderstorms before 8pm. Seas 1 to 2 ft.

Sunday

WSW wind 7 to 12 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 to 2 ft.

Sunday Night

SW wind 11 to 13 kt. Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Seas around 2 ft.

Monday

WSW wind around 11 kt becoming SSW in the afternoon. Showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Seas around 2 ft.

Monday Night

WSW wind 10 to 12 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Seas around 2 ft.

Tuesday

WSW wind around 13 kt. Showers and thunderstorms likely, mainly after 2pm. Seas around 2 ft.

Tuesday Night

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

Wednesday

WSW wind around 11 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms 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.