World Resorts USA Miami Beach Weather

Miami Beach Sea Temperature in December

Average sea water temperature in December:
+77.6°F
Minimum sea water temperature in December: 80.8°F
Maximum sea water temperature in December: 73.6°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 77.7°F. The highest and lowest sea temperatures during the month were 79.3°F and 76.3°F.

Monthly sea water temperature in Miami Beach, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Kailua Kona 79.3°F 78.3°F
West Palm Beach 79.1°F 78.4°F
Fort Lauderdale 78.8°F 77.6°F
Honolulu 78.7°F 78.3°F
Hawaii 78.6°F 78.3°F
Kauai 78.3°F 76.0°F
Maui 78.1°F 77.8°F
Miami Beach 77.7°F 75.9°F
Oahu 77.2°F 77.2°F
Islamorada 76.8°F 73.4°F
Key Largo 76.7°F 73.1°F
Key West 76.2°F 72.6°F
Miami 76.0°F 73.0°F
Everglades 74.0°F 69.7°F
Marco Island 72.0°F 68.0°F
Naples 71.6°F 67.7°F
South Padre Island 71.4°F 71.9°F
Sanibel Island 71.0°F 67.1°F
Cocoa Beach 69.5°F 66.6°F
Siesta Key 69.4°F 65.6°F

Best time for vacation in Miami Beach

Sunniest months:
March 13 days
April 13 days
May 12 days
Warmest months:
August 88.5 °F
July 87.9 °F
September 86.8 °F
Warmest sea temp:
August 86.5 °F
July 85.8 °F
September 85.5 °F
Coldest months:
January 72.9 °F
February 75.4 °F
December 76.3 °F
Rainiest months:
July 10 days
August 9 days
June 8 days
Windiest months:
November 13.1 mph
March 12.8 mph
October 12.6 mph

Miami Beach on a weather map

Miami Beach
+72°F
NE 4 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
+39°F
+73°F
+73°F
+57°F
+55°F
+66°F
+72°F
+68°F
+32°F
+59°F
+50°F
+61°F
+61°F
+72°F
+41°F
24 Hours Forecast
Miami Beach
Local time: 22:38
December 27, saturday
0000
72°F
NE
4 mph
0300
68°F
E
9 mph
0600
66°F
SE
9 mph
0900
66°F
SE
9 mph
1200
72°F
S
8 mph
1500
79°F
SW
3 mph
1800
81°F
W
7 mph
2100
75°F
N
3 mph
Units of measurement: °C / °F