Measurements:
°C
°F
Key Largo
94°F
W 11 mph
Feels like: 108°F
Precip: 7%
World Resorts USA Key Largo Weather

7 Day Weather Forecast

08.05
wed
DAY
94°F
W 11 mph
precip
6%
NIGHT
90°F
W 19 mph
precip
8%
08.06
thu
DAY
90°F
W 19 mph
precip
12%
NIGHT
90°F
W 17 mph
precip
11%
08.07
fri
DAY
88°F
NW 16 mph
precip
24%
NIGHT
90°F
W 16 mph
precip
8%
08.08
sat
DAY
90°F
NW 16 mph
precip
18%
NIGHT
88°F
W 17 mph
precip
60%
08.09
sun
DAY
90°F
W 14 mph
precip
13%
NIGHT
90°F
W 17 mph
precip
7%
08.10
mon
DAY
90°F
W 14 mph
precip
14%
NIGHT
90°F
W 16 mph
precip
7%
08.11
tue
DAY
90°F
W 12 mph
precip
10%
NIGHT
90°F
W 15 mph
precip
8%

Key Largo Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Key Largo was 31.5°F. The maximum and minimum values were 30.5°F and 32.3°F respectively.

Key Largo on the Weather Map

Best Time to Visit Key Largo
The most sunny months:
December 12 days
February 12 days
March 12 days
The most warm months:
July 89.3 °F
August 89.1 °F
September 88.4 °F
Warmest sea temperature:
August 91.7 °F
July 91.4 °F
September 90.7 °F
The most cold months:
January 72.9 °F
February 75.2 °F
December 75.6 °F
The most rainy months:
June 3 days
September 3 days
July 3 days
The most windy months:
March 14 mph
November 14 mph
April 13 mph