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Jacksonville, FL Local Forecast Office

4NM SE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

Overnight
Low: 59 °F
NNE 10kt
3ft
Monday
High: 65 °F
NE 17kt
3-4ft
Monday Night
Low: 63 °F
NE 17kt
3-4ft
Tuesday
High: 69 °F
SSW 15kt
3-4ft
Tuesday Night
Low: 48 °F
NW 13kt
3-4ft
Wednesday
High: 59 °F
N 9kt
2ft
Wednesday Night
Low: 50 °F
⇑N 6kt
2ft
Thursday
High: 62 °F
NNW 7kt
2ft
Thursday Night
Low: 56 °F
⇑N 7kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:41 pm EST Nov 30, 2025
Forecast Valid: 12am EST Dec 1, 2025-6pm EST Dec 7, 2025

View Nearby Observations

Detailed Forecast

Overnight

NNE wind 5 to 10 kt. Mostly cloudy. Seas around 3 ft.

Monday

NE wind 14 to 17 kt. A slight chance of showers after 1pm. Seas 3 to 4 ft.

Monday Night

NE wind 9 to 17 kt becoming S after midnight. A chance of showers, then showers likely and possibly a thunderstorm after 1am. Seas 3 to 4 ft.

Tuesday

SSW wind 13 to 15 kt becoming W in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Seas 3 to 4 ft.

Tuesday Night

NW wind 10 to 13 kt. Partly cloudy. Seas 3 to 4 ft.

Wednesday

N wind 7 to 9 kt. Mostly sunny. Seas around 2 ft.

Wednesday Night

Variable winds less than 5 kt becoming N around 6 kt after midnight. Partly cloudy. Seas around 2 ft.

Thursday

NNW wind around 7 kt. Partly sunny. Seas around 2 ft.

Thursday Night

Variable winds less than 5 kt becoming N 5 to 7 kt in the evening. Mostly cloudy. Seas around 2 ft.

Winds and waves higher in and near thunderstorms.

*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.