Measurements:
°C
°F
CURRENT WEATHER
19:20
Jacksonville
66°F
SW 5 mph
Feels like: 66°F
Precip: 85%
World Resorts USA Jacksonville Weather

7 Day Weather Forecast

12.17
wed
DAY
64°F
W 2 mph
precip
0%
NIGHT
64°F
SW 3 mph
precip
0%
12.18
thu
DAY
72°F
NW 4 mph
precip
0%
NIGHT
70°F
NE 7 mph
precip
0%
12.19
fri
DAY
76°F
E 14 mph
precip
0%
NIGHT
58°F
S 6 mph
precip
0%
12.20
sat
DAY
64°F
SW 4 mph
precip
0%
NIGHT
56°F
NW 3 mph
precip
0%
12.21
sun
DAY
66°F
SE 4 mph
precip
0%
NIGHT
60°F
S 4 mph
precip
0%
12.22
mon
DAY
66°F
SW 14 mph
precip
0%
NIGHT
58°F
SW 9 mph
precip
0%
12.23
tue
DAY
68°F
W 7 mph
precip
0%
NIGHT
60°F
SW 3 mph
precip
0%

Jacksonville Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Jacksonville was 17.4°F. The maximum and minimum values were 15.5°F and 19.3°F respectively.

Jacksonville on the Weather Map

Best Time to Visit Jacksonville
The most sunny months:
May 16 days
April 16 days
March 14 days
The most warm months:
July 96.1 °F
August 95.4 °F
June 93.6 °F
Warmest sea temperature:
August 86.5 °F
September 86.0 °F
July 85.9 °F
The most cold months:
January 63.3 °F
December 68.8 °F
February 69.3 °F
The most rainy months:
August 9 days
June 8 days
July 8 days
The most windy months:
April 8 mph
March 7 mph
October 7 mph
more details