Measurements:
°C
°F
CURRENT WEATHER
22:40
Key Largo
80°F
SW 28 mph
Feels like: 84°F
Precip: 46%
World Resorts USA Key Largo Weather

7 Day Weather Forecast

10.26
mon
DAY
80°F
SW 30 mph
precip
10%
NIGHT
80°F
SW 28 mph
precip
46%
10.27
tue
DAY
80°F
SW 27 mph
precip
40%
NIGHT
80°F
SW 20 mph
precip
40%
10.28
wed
DAY
82°F
SW 9 mph
precip
11%
NIGHT
80°F
W 12 mph
precip
33%
10.29
thu
DAY
82°F
W 7 mph
precip
10%
NIGHT
80°F
W 11 mph
precip
12%
10.30
fri
DAY
82°F
W 9 mph
precip
11%
NIGHT
80°F
W 11 mph
precip
11%
10.31
sat
DAY
84°F
SW 7 mph
precip
18%
NIGHT
82°F
SW 9 mph
precip
50%
11.01
sun
DAY
82°F
SW 7 mph
precip
22%
NIGHT
80°F
SW 6 mph
precip
12%

Key Largo Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Key Largo was 28.9°F. The maximum and minimum values were 26.0°F and 30.2°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:
August 89.8 °F
July 89.3 °F
September 88.3 °F
Warmest sea temperature:
August 91.9 °F
July 91.4 °F
September 90.8 °F
The most cold months:
January 72.9 °F
February 75.2 °F
December 75.6 °F
The most rainy months:
September 4 days
June 3 days
July 3 days
The most windy months:
March 14 mph
November 14 mph
April 13 mph
more details