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Jacksonville, FL Local Forecast Office

2NM S Mayport FL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 82 °F
NNE 21kt
4ft
Tonight
Low: 77 °F
NE 21kt
4-5ft

Small Craft Advisory
Thursday
High: 79 °F
N 28kt
6ft

Small Craft Advisory
Thursday Night
Low: 72 °F
NNE 27kt
7-8ft

Small Craft Advisory
Friday
High: 75 °F
N 22kt
8ft

Small Craft Advisory
Friday Night
Low: 70 °F
NNE 14kt
6-7ft

Small Craft Advisory
Saturday
High: 76 °F
NNE 16kt
6ft
Saturday Night
Low: 69 °F
NNE 9kt
5ft
Sunday
High: 80 °F
N 8kt
4-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:21 pm EDT Sep 23, 2026
Forecast Valid: 4pm EDT Sep 23, 2026-6pm EDT Sep 29, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NNE wind around 21 kt. Showers likely and possibly a thunderstorm. Seas around 4 ft.

Tonight

NE wind around 21 kt. Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Seas 4 to 5 ft.

Thursday

N wind 21 to 28 kt. A chance of showers and thunderstorms. Seas around 6 ft.

Thursday Night

NNE wind 24 to 27 kt. A chance of showers and thunderstorms. Seas 7 to 8 ft.

Friday

N wind 19 to 22 kt. A slight chance of showers before 8am. Seas around 8 ft.

Friday Night

NNE wind 11 to 14 kt. Mostly clear. Seas 6 to 7 ft.

Saturday

NNE wind 13 to 16 kt. Sunny. Seas around 6 ft.

Saturday Night

NNE wind 6 to 9 kt. Mostly clear. Seas around 5 ft.

Sunday

N wind around 8 kt becoming NE in the afternoon. Mostly sunny. Seas 4 to 5 ft.

*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.