14.09
mon
mon
Day
95°F
S 3 mph
Precip.
1%
1%
Night
81°F
W 3 mph
Precip.
8%
8%
15.09
tue
tue
Day
91°F
W 11 mph
Precip.
3%
3%
Night
79°F
W 9 mph
Precip.
13%
13%
16.09
wed
wed
Day
86°F
SW 12 mph
Precip.
10%
10%
Night
81°F
SW 8 mph
Precip.
2%
2%
17.09
thu
thu
Day
82°F
SW 12 mph
Precip.
57%
57%
Night
77°F
SW 3 mph
Precip.
17%
17%
18.09
fri
fri
Day
88°F
W 7 mph
Precip.
17%
17%
Night
79°F
SW 6 mph
Precip.
8%
8%
19.09
sat
sat
Day
82°F
SW 11 mph
Precip.
57%
57%
Night
77°F
SW 5 mph
Precip.
9%
9%
20.09
sun
sun
Day
90°F
SW 9 mph
Precip.
2%
2%
Night
79°F
N 5 mph
Precip.
5%
5%
21.09
mon
mon
Day
91°F
NE 6 mph
Precip.
3%
3%
Night
77°F
W 3 mph
Precip.
77%
77%
22.09
tue
tue
Day
84°F
SE 7 mph
Precip.
17%
17%
Night
72°F
S 7 mph
Precip.
8%
8%
23.09
wed
wed
Day
81°F
SW 9 mph
Precip.
5%
5%
Night
73°F
NW 3 mph
Precip.
4%
4%
24.09
thu
thu
Day
84°F
SW 5 mph
Precip.
1%
1%
Night
77°F
W 6 mph
Precip.
8%
8%
25.09
fri
fri
Day
84°F
SW 8 mph
Precip.
1%
1%
Night
73°F
W 5 mph
Precip.
1%
1%
26.09
sat
sat
Day
82°F
SW 10 mph
Precip.
1%
1%
Night
73°F
NW 4 mph
Precip.
3%
3%
27.09
sun
sun
Day
82°F
SW 9 mph
Precip.
1%
1%
Night
77°F
W 6 mph
Precip.
2%
2%
sea water
temperature
temperature
| Jacksonville |
monthly
weather
weather
| Jacksonville |
current
weather
weather
| Jacksonville |
7 days
forecast
forecast
| Jacksonville |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 81.1°F. The highest and lowest sea temperatures during the month were 84.7°F and 78.1°F.
Air temperature in Jacksonville, °F
Precipitation total in Jacksonville, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Jacksonville
Jacksonville on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Jacksonville
Local time: 16:54
September 14, monday
1800
81°F
N
2 mph
2 mph
2100
82°F
NW
5 mph
5 mph
September 15, tuesday
0000
81°F
W
3 mph
3 mph
0300
79°F
W
2 mph
2 mph
0600
79°F
SW
4 mph
4 mph
0900
84°F
W
7 mph
7 mph
1200
91°F
W
11 mph
11 mph
1500
93°F
W
14 mph
14 mph
