World Resorts USA Key Largo Weather

Key Largo Sea Temperature in December

Average sea water temperature in December:
+75.3°F
Minimum sea water temperature in December: 80.6°F
Maximum sea water temperature in December: 69.4°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 76.3°F. The highest and lowest sea temperatures during the month were 79.5°F and 73.8°F.

Monthly sea water temperature in Key Largo, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
West Palm Beach 79.0°F 78.4°F
Fort Lauderdale 78.7°F 77.6°F
Honolulu 78.6°F 78.3°F
Hawaii 78.5°F 78.3°F
Kauai 78.2°F 76.0°F
Hilo 78.0°F 78.0°F
Maui 78.0°F 77.8°F
Miami Beach 77.4°F 75.9°F
Oahu 77.1°F 77.2°F
Key Largo 76.3°F 73.1°F
Hialeah 76.2°F 74.3°F
Key West 75.9°F 72.6°F
Miami 75.5°F 73.0°F
Everglades 73.7°F 69.7°F
Marco Island 71.8°F 68.0°F
Naples 71.5°F 67.7°F
Cape Coral 71.2°F 67.8°F
Cocoa Beach 69.7°F 66.6°F
Siesta Key 69.3°F 65.6°F
Sarasota 69.2°F 65.6°F

Best time for vacation in Key Largo

Sunniest months:
December 12 days
February 12 days
March 12 days
Warmest months:
August 85.2 °F
July 85.1 °F
September 84.5 °F
Warmest sea temp:
August 87.6 °F
July 87.1 °F
September 86.6 °F
Coldest months:
January 70.6 °F
February 72.7 °F
December 73.0 °F
Rainiest months:
June 3 days
September 3 days
July 3 days
Windiest months:
March 13.9 mph
November 13.9 mph
April 13.7 mph

Key Largo on a weather map

Key Largo
+84°F
N 5 mph
Feels like: +90°F
Precip.: 0%
Places in USA:
Name
°F
+63°F
+75°F
+75°F
+90°F
+63°F
+82°F
+81°F
+70°F
+59°F
+66°F
+57°F
+79°F
+82°F
+81°F
+61°F
24 Hours Forecast
Key Largo
Local time: 15:12
May 03, sunday
1800
82°F
E
1 mph
2100
79°F
SW
11 mph
May 04, monday
0000
77°F
W
10 mph
0300
77°F
N
4 mph
0600
79°F
NE
2 mph
0900
79°F
SE
4 mph
1200
79°F
SW
7 mph
1500
79°F
SW
10 mph
Units of measurement: °C / °F