World Resorts USA Jacksonville Weather

Jacksonville Sea Temperature in December

Average sea water temperature in December:
+63.2°F
Minimum sea water temperature in December: 69.1°F
Maximum sea water temperature in December: 55.4°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 62.5°F. The highest and lowest sea temperatures during the month were 66.7°F and 58.6°F.

Monthly sea water temperature in Jacksonville, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Kailua Kona 79.4°F 78.3°F
West Palm Beach 79.2°F 78.4°F
Fort Lauderdale 78.9°F 77.6°F
Honolulu 78.7°F 78.3°F
Hawaii 78.6°F 78.3°F
Kauai 78.4°F 76.0°F
Maui 78.2°F 77.8°F
Miami Beach 77.8°F 75.9°F
Oahu 77.3°F 77.2°F
Islamorada 77.0°F 73.4°F
Key Largo 76.9°F 73.1°F
Key West 76.4°F 72.6°F
Miami 76.1°F 73.0°F
Everglades 74.2°F 69.7°F
Marco Island 72.1°F 68.0°F
Naples 71.7°F 67.7°F
Cape Coral 71.5°F 67.8°F
South Padre Island 71.4°F 71.9°F
Sanibel Island 71.1°F 67.1°F
Siesta Key 69.5°F 65.6°F

Best time for vacation in Jacksonville

Sunniest months:
May 16 days
April 16 days
March 14 days
Warmest months:
July 91.5 °F
August 90.8 °F
June 89.2 °F
Warmest sea temp:
August 82.9 °F
September 82.4 °F
July 82.3 °F
Coldest months:
January 62.0 °F
December 66.9 °F
February 67.4 °F
Rainiest months:
August 9 days
June 8 days
July 8 days
Windiest months:
April 8.2 mph
March 7.8 mph
October 7.7 mph

Jacksonville on a weather map

Jacksonville
+61°F
E 3 mph
Feels like: +61°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+73°F
+73°F
+59°F
+59°F
+70°F
+75°F
+68°F
+36°F
+61°F
+57°F
+66°F
+64°F
+70°F
+39°F
24 Hours Forecast
Jacksonville
Local time: 23:13
December 24, wednesday
0000
61°F
E
3 mph
0300
57°F
E
2 mph
0600
55°F
SE
4 mph
0900
55°F
SE
4 mph
1200
70°F
SE
5 mph
1500
79°F
SE
6 mph
1800
79°F
SE
2 mph
2100
72°F
S
1 mph
Units of measurement: °C / °F