Measurements:
°C
°F
CURRENT WEATHER
17:47
Key Largo
90°F
W 12 mph
Feels like: 100°F
Precip: 18%
World Resorts USA Key Largo Weather

7 Day Weather Forecast

08.25
tue
DAY
94°F
W 11 mph
precip
7%
NIGHT
90°F
NW 14 mph
precip
59%
08.26
wed
DAY
90°F
W 13 mph
precip
40%
NIGHT
90°F
W 17 mph
precip
42%
08.27
thu
DAY
90°F
NW 11 mph
precip
18%
NIGHT
90°F
W 13 mph
precip
66%
08.28
fri
DAY
90°F
W 12 mph
precip
44%
NIGHT
90°F
SW 11 mph
precip
6%
08.29
sat
DAY
90°F
NW 12 mph
precip
47%
NIGHT
92°F
W 15 mph
precip
36%
08.30
sun
DAY
90°F
W 14 mph
precip
23%
NIGHT
92°F
W 13 mph
precip
17%
08.31
mon
DAY
90°F
NW 9 mph
precip
57%
NIGHT
92°F
W 15 mph
precip
5%

Key Largo Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Key Largo was 31.3°F. The maximum and minimum values were 30.3°F and 32.1°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 91.9 °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
more details