January weather forecast
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, the same as December, in Key Largo, Florida, is another pleasant winter month, with an average temperature fluctuating between 72.7°F (22.6°C) and 66.9°F (19.4°C).

Temperature

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.

Humidity

In January, the average relative humidity is 75%.

Rainfall

In January, the rain falls for 10.7 days. Throughout January, 0.75" (19mm) of precipitation is accumulated. In Key Largo, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.

Ocean temperature

In January, the average ocean temperature in Key Largo is 74.1°F (23.4°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 74.1°F (23.4°C).

Daylight

The average length of the day in January in Key Largo is 10h and 47min.
On the first day of January in Key Largo, sunrise is at 7:06 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:05 pm EST.

Sunshine

In Key Largo, the average sunshine in January is 6.7h.

UV index

With an average maximum UV index of 5, January is the month with the lowest UV index in Key Largo, Florida. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the coldest month in Key Largo?

January 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).

What is the temperature in January in Key Largo?

In Key Largo, in January, the average high-temperature is 72.7°F (22.6°C), and the average low-temperature is 66.9°F (19.4°C).

What is the average humidity in January in Key Largo?

The average relative humidity in January is 75%.

How many days does it rain in January in Key Largo?

In Key Largo, Florida, in January, it is raining for 10.7 days, with typically 0.75" (19mm) of accumulated precipitation.

What is the water temperature in January in Key Largo?

In Key Largo, in January, the average water temperature is 74.1°F (23.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.1°F (23.4°C) water.

What is the average length of the day in January in Key Largo?

In January, the average day length in Key Largo, Florida, is 10h and 47min.

When are sunrise and sunset in January in Key Largo?

In January, on the first day of the month, sunrise is at 7:06 am and sunset at 5:43 pm. On the last day of the month, in Key Largo, sunrise is at 7:04 am and sunset at 6:05 pm EST.

How long on average sun shines in January in Key Largo?

The average sunshine duration in January in Key Largo is 6.7h.

When is the lowest UV index in Key Largo?

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

How high is the UV index in January in Key Largo?

In January, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in January
Key Largo, FL

Average temperature in January - Key Largo, FL
  • Average high temperature in January: 72.7°F

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).

  • Average low temperature in January: 66.9°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 in January
Key Largo, FL

Average pressure in January - Key Largo, FL
  • Average pressure in January: 30.1"Hg

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

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Average wind speed in January
Key Largo, FL

Average wind speed in January - Key Largo, FL
  • Average wind speed in January: 12.9mph

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 in January
Key Largo, FL

Average humidity in January - Key Largo, FL
  • Average humidity in January: 75%

The 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 in January
Key Largo, FL

Average rainfall in January - Key Largo, FL
  • Average rainfall in January: 0.75"

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 in January
Key Largo, FL

Average rainfall days in January - Key Largo, FL
  • Average rainfall days in January: 10.7 days

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 in January
Key Largo, FL

Average sea temperature in January - Key Largo, FL
  • Average sea temperature in January: 74.2°F

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 in January /
Average sunshine in January
Key Largo, FL

Average daylight in January / Average sunshine in January - Key Largo, FL
  • Average daylight in January: 10h and 47min

The month with the longest days is June (Average daylight: 13h and 40min).
The month with the shortest days is December (Average daylight: 10h and 37min).

  • Average sunshine in January: 6h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in January
Key Largo, FL

Average sunshine days in January - Key Largo, FL
  • Average sunshine days in January: 17.3 days

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 in January
Key Largo, FL

Average UV index in January - Key Largo, FL
  • Average UV index in January: 5

The 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 cloud cover in January
Key Largo, FL

Average cloud cover in January - Key Largo, FL
  • Average cloud cover in January: 34

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

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Average visibility in January
Key Largo, FL

Average visibility in January - Key Largo, FL
  • Average visibility in January: 6mi

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

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