World Resorts USA Key Largo Weather

Key Largo 14 Days Forecast

30.12
tue
Day
68°F
S 15 mph
Precip.
75%
Night
64°F
S 19 mph
Precip.
0%
31.12
wed
Day
63°F
S 14 mph
Precip.
0%
Night
63°F
S 12 mph
Precip.
0%
01.01
thu
Day
63°F
S 10 mph
Precip.
0%
Night
64°F
S 9 mph
Precip.
0%
02.01
fri
Day
64°F
S 7 mph
Precip.
0%
Night
70°F
W 7 mph
Precip.
0%
03.01
sat
Day
72°F
N 6 mph
Precip.
0%
Night
72°F
E 6 mph
Precip.
0%
04.01
sun
Day
72°F
E 7 mph
Precip.
0%
Night
72°F
SE 14 mph
Precip.
0%
05.01
mon
Day
72°F
S 8 mph
Precip.
0%
Night
72°F
SE 6 mph
Precip.
100%
06.01
tue
Day
70°F
SE 7 mph
Precip.
0%
Night
68°F
SE 18 mph
Precip.
0%
07.01
wed
Day
66°F
SW 7 mph
Precip.
0%
Night
68°F
SE 11 mph
Precip.
0%
08.01
thu
Day
64°F
SE 7 mph
Precip.
0%
Night
66°F
NE 8 mph
Precip.
0%
09.01
fri
Day
72°F
NW 9 mph
Precip.
0%
Night
73°F
W 8 mph
Precip.
0%
10.01
sat
Day
73°F
NW 5 mph
Precip.
0%
Night
73°F
SW 2 mph
Precip.
0%
11.01
sun
Day
72°F
SW 7 mph
Precip.
0%
Night
73°F
W 11 mph
Precip.
0%
12.01
mon
Day
75°F
NW 14 mph
Precip.
74%
Night
75°F
NW 8 mph
Precip.
100%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 76.4°F. The highest and lowest sea temperatures during the month were 79.5°F and 73.8°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 71.1°F. The highest and lowest sea temperatures during the month were 75.7°F and 66.7°F.

Air temperature in Key Largo, °F

Precipitation total in Key Largo, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Key Largo

Sunniest months:
December 12 days
March 11 days
April 11 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 70.8 °F
December 73.1 °F
February 73.5 °F
Rainiest months:
June 3 days
September 3 days
July 3 days
Windiest months:
November 13.9 mph
March 13.8 mph
April 13.5 mph

Key Largo on a weather map

Key Largo
+73°F
SE 11 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+66°F
+70°F
+70°F
+70°F
+70°F
+30°F
+79°F
+52°F
+59°F
+57°F
+55°F
+25°F
24 Hours Forecast
Key Largo
Local time: 17:51
December 30, tuesday
1800
73°F
SE
11 mph
2100
68°F
S
18 mph
December 31, wednesday
0000
64°F
S
19 mph
0300
61°F
S
17 mph
0600
59°F
S
19 mph
0900
59°F
S
19 mph
1200
63°F
S
14 mph
1500
68°F
S
9 mph
Units of measurement: °C / °F