Current sea water temperature:
+59.9°F
| Minimum sea water temperature in January: | 68.7°F |
| Maximum sea water temperature in January: | 49.8°F |
| Average sea water temperature in January: | 60.2°F |
| more information | |
14 days
forecast
forecast
| Jacksonville |
monthly
weather
weather
| Jacksonville |
Sea water temperature for the last 10 days:
| January 10 | 59.9°F | January 5 | 59.9°F |
| January 9 | 59.7°F | January 4 | 59.7°F |
| January 8 | 60.8°F | January 3 | 60.1°F |
| January 7 | 59.7°F | January 2 | 60.1°F |
| January 6 | 60.3°F | January 1 | 60.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Jacksonville?
Based on the data about daily sea water temperature for the last three years the warmest sea in Jacksonville was noticed in August, September and July.
Monthly Sea Temperatures in Jacksonville, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.9°F. The highest and lowest sea temperatures during the month were 86.2°F and 83.1°F.
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.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 80.4°F. The highest and lowest sea temperatures during the month were 84.7°F and 76.8°F.
current
weather
weather
| Jacksonville |
weather in
January
January
| Jacksonville |
Best time for vacation in Jacksonville
Jacksonville on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Jacksonville
Local time: 18:56
January 10, saturday
2100
72°F
NE
4 mph
4 mph
January 11, sunday
0000
68°F
E
4 mph
4 mph
0300
64°F
NE
5 mph
5 mph
0600
61°F
NE
5 mph
5 mph
0900
61°F
E
6 mph
6 mph
1200
63°F
SE
11 mph
11 mph
1500
61°F
SE
9 mph
9 mph
1800
57°F
S
9 mph
9 mph
