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

Weather in January

January, like December, is another pleasant winter month in Key Largo, Florida, with average temperature ranging between min 66.9°F (19.4°C) and max 72.7°F (22.6°C). With an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 66.9°F (19.4°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a warm month in Key Largo, Florida, with temperature in the range of an average high of 73.6°F (23.1°C) and an average low of 69.4°F (20.8°C). In Key Largo, Florida, the average high-temperature is practically the same as in January - a warm 73.6°F (23.1°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderately hot month in Key Largo, Florida, with average temperature ranging between max 74.5°F (23.6°C) and min 70.2°F (21.2°C). In March, the average high-temperature is almost the same as in February - a still warm 74.5°F (23.6°C). Weather in March »

Weather in April

April, the same as March, is another warm spring month in Key Largo, Florida, with average temperature varying between 77.5°F (25.3°C) and 75°F (23.9°C). In Key Largo, the average high-temperature in April is practically the same as in March - a still warm 77.5°F (25.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Key Largo, is also a moderately hot month, with average temperature ranging between max 80.6°F (27°C) and min 78.1°F (25.6°C). In May, the average high-temperature is relatively the same as in April - a still moderately hot 80.6°F (27°C). Weather in May »

Weather in June

June, the first month of the summer, in Key Largo, is still a warm month, with temperature in the range of an average low of 81.1°F (27.3°C) and an average high of 83.7°F (28.7°C). In Key Largo, the average high-temperature is practically the same as in May - a still moderately hot 83.7°F (28.7°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Key Largo, Florida, with average temperature varying between 84.7°F (29.3°C) and 82.4°F (28°C). In July, the average high-temperature is almost the same as in June - a still moderately hot 84.7°F (29.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Key Largo, Florida, with average temperature fluctuating between 82.9°F (28.3°C) and 85.5°F (29.7°C). With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 82.9°F (28.3°C), August is the warmest month. The average heat index in August is appraised at a torrid 95.4°F (35.2°C). Weather in August »

Weather in September

September, the first month of the autumn, in Key Largo, is also a moderately hot month, with average temperature fluctuating between 81.7°F (27.6°C) and 84.6°F (29.2°C). In Key Largo, the average high-temperature is almost the same as in August - a still warm 84.6°F (29.2°C). Weather in September »

Weather in October

October, like September, in Key Largo, Florida, is another warm autumn month, with average temperature fluctuating between 78.8°F (26°C) and 82.2°F (27.9°C). In October, the average high-temperature is almost the same as in September - a still warm 82.2°F (27.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Key Largo, Florida, with average temperature varying between 77.7°F (25.4°C) and 74.1°F (23.4°C). In November, the average high-temperature is almost the same as in October - a still warm 77.7°F (25.4°C). Weather in November »

Weather in December

December, the first month of the winter, in Key Largo, is still a warm month, with average temperature fluctuating between 75.2°F (24°C) and 71.1°F (21.7°C). In Key Largo, the average high-temperature in December is almost the same as in November - a still warm 75.2°F (24°C). Weather in December »
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FAQ

What is the coldest month in Key Largo?

With an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 66.9°F (19.4°C), January is the coldest month in Key Largo, Florida.

How many days does it rain in Key Largo?

Throughout the year, in Key Largo, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

What is the month with the lowest UV index in Key Largo?

The month with the lowest UV index in Key Largo, Florida, is January, with an average maximum UV index of 5.

What is the most humid month in Key Largo?

February, June and December, with an average relative humidity of 76%, are most humid months in Key Largo, Florida.

What is the month with the coldest ocean in Key Largo?

The month with the coldest seawater in Key Largo, Florida, is February, with an average ocean temperature of 73.9°F (23.3°C).

What is the least humid month in Key Largo?

March is the least humid month in Key Largo, with an average relative humidity of 73%.

What is the driest month in Key Largo?

The month with the least rainfall in Key Largo, Florida, is March when the rain falls for 11.4 days and typically collects 0.59" (15mm) of precipitation.

What are the months with the highest UV index in Key Largo?

Months with the highest UV index in Key Largo are April through October, with an average maximum UV index of 7.

When are the longest days in Key Largo?

The month with the longest days in Key Largo, Florida, is June, with an average of 13.7h of daylight.

What month has the most sunshine in Key Largo?

With an average of 11h of sunshine, July has the most sunshine of the year in Key Largo, Florida.

What is the warmest month in Key Largo?

The warmest month in Key Largo, Florida, is August, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 82.9°F (28.3°C).

What is the rainiest month in Key Largo?

August is the month with the most rainfall. Rain falls for 20.9 days and accumulates 4.33" (110mm) of precipitation.

What month is the ocean warmest in Key Largo?

The month with the warmest seawater is August, with an average ocean temperature of 86.5°F (30.3°C).

What is the month with the shortest days in Key Largo?

With an average of 10.6h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Key Largo?

The month with the least sunshine is December, with an average of 6.4h of sunshine.

Average temperature
Key Largo, FL

Average temperature - Key Largo, FL

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).

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Average pressure
Key Largo, FL

Average pressure - Key Largo, FL

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are September and October (29.94").

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Average wind speed
Key Largo, FL

Average wind speed - Key Largo, FL

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

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Average humidity
Key Largo, FL

Average humidity - Key Largo, FL

Months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

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Average rainfall
Key Largo, FL

Average rainfall - Key Largo, FL

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

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Average rainfall days
Key Largo, FL

Average rainfall days - Key Largo, FL

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

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Average sea temperature
Key Largo, FL

Average sea temperature - Key Largo, FL

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).

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Average daylight / Average sunshine
Key Largo, FL

Average daylight / Average sunshine - Key Largo, FL

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

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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Average sunshine days
Key Largo, FL

Average sunshine days - Key Largo, FL

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

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Average UV index
Key Largo, FL

Average UV index - Key Largo, FL

Months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average visibility
Key Largo, FL

Average visibility - Key Largo, FL

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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