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Jacksonville, FL Local Forecast Office

4NM SE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Today
High: 19 °C
SSW 21km/h
1m
Tonight
Low: 17 °C
S 16km/h
1m
Monday
High: 18 °C
S 13km/h
1m
Monday Night
Low: 17 °C
S 13km/h
1m
Tuesday
High: 18 °C
SSE 14km/h
1m
Tuesday Night
Low: 17 °C
S 14km/h
1m
Wednesday
High: 21 °C
S 23km/h
1m
Wednesday Night
Low: 16 °C
SSW 27km/h
1m
Thursday
High: 19 °C
NW 35km/h
1m

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:42 am EDT Mar 8, 2026
Forecast Valid: 6am EDT Mar 8, 2026-6pm EDT Mar 14, 2026

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Detailed Forecast

Today

SSW wind 13 to 21 km/h, with gusts as high as 27 km/h. A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Areas of dense fog before noon. Seas around 1 m.

Tonight

S wind 13 to 16 km/h, with gusts as high as 24 km/h. A chance of showers and thunderstorms, mainly before 10pm. Seas around 1 m.

Monday

WSW wind 10 to 13 km/h becoming S in the afternoon. A slight chance of showers after 2pm. Seas around 1 m.

Monday Night

S wind 10 to 13 km/h. A slight chance of showers, with thunderstorms also possible after 11pm. Seas around 1 m.

Tuesday

SW wind 8 to 14 km/h becoming SSE in the afternoon. Mostly sunny. Seas around 1 m.

Tuesday Night

S wind around 14 km/h. Partly cloudy. Seas around 1 m.

Wednesday

S wind 13 to 23 km/h, with gusts as high as 29 km/h. Partly sunny. Seas around 1 m.

Wednesday Night

SSW wind 23 to 27 km/h, with gusts as high as 39 km/h. A chance of showers. Seas around 1 m.

Thursday

SW wind 26 to 35 km/h becoming NW in the afternoon. Winds could gust as high as 45 km/h. A chance of showers. Seas around 1 m.

*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.