Monthly weather forecast and climate
Key Largo, FL

A clear seascape and cloudy evening sky in Key Largo, Florida
A clear seascape and cloudy evening sky in Key Largo, Florida

What is the coldest month in Key Largo?

January is the coldest month in Key Largo, with an average high-temperature of 75.2°F (24°C) and an average low-temperature of 57.2°F (14°C).

How many days does it rain in Key Largo?

In Key Largo, during the entire year, the rain falls for 126 days and collects up to 56.7" (1439mm) of precipitation.

What is the month with the coldest sea water in Key Largo?

Month with the coldest seawater is February, with an average sea temperature of 72.7°F (22.6°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 72.7°F (22.6°C) water. The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).

What is the wettest month in Key Largo?

The month with the most rainfall is June when the rain falls for 15 days and typically aggregates up to 10" (253mm) of precipitation.

What are the warmest months in Key Largo?

Warmest months in Key Largo, Florida, are July through September, with an average high-temperature of 89.6°F (32°C).

When is the sea warmest in Key Largo?

Month with the warmest seawater is August, with an average sea temperature of 86.7°F (30.4°C). For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

What is the driest month in Key Largo?

December is the month with the least rainfall in Key Largo. Rain falls for 6 days and accumulates 1.4" (36mm) of precipitation.
Average temperature - Key Largo, FL
Average rainfall - Key Largo, FL
Average rainfall days - Key Largo, FL
Average sea temperature - Key Largo, FL

The best month for swimming (with the highest average sea temperature) is August (86.8°F).
The coldest month (with the lowest average sea temperature) is February (72.6°F).

Average daylight / Average sunshine - Key Largo, FL

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).

Months with most sunshine are April, May, June and July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 7).

Average UV index - Key Largo, FL
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