January weather forecast and climate
Cudjoe Key, FL

Weather in January

January, the same as December, in Cudjoe Key, Florida, is an agreeable winter month, with average temperature fluctuating between 72.7°F (22.6°C) and 68.5°F (20.3°C).

Temperature

January is the coldest month, with an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 68.5°F (20.3°C).

Humidity

In January, the average relative humidity in Cudjoe Key is 76%.

Rainfall

In Cudjoe Key, during 10.2 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 171.1 rainfall days, and 21.54" (547mm) of precipitation is accumulated.

Ocean temperature

In January, the average ocean temperature in Cudjoe Key is 72.3°F (22.4°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 72.3°F (22.4°C).

Daylight

In January, the average length of the day is 10.8h.

Sunshine

In Cudjoe Key, the average sunshine is 7.2h.

UV index

January is the month with the lowest UV index, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Cudjoe Key?

With an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 68.5°F (20.3°C), January is the coldest month in Cudjoe Key.

What is the temperature in January in Cudjoe Key?

In January, in Cudjoe Key, the average high-temperature is 72.7°F (22.6°C), and the average low-temperature is 68.5°F (20.3°C).

What is the average humidity in January in Cudjoe Key?

In Cudjoe Key, Florida, the average relative humidity in January is 76%.

How much does it rain in Cudjoe Key in January?

In January, the rain falls for 10.2 days. Throughout January, 0.94" (24mm) of precipitation is accumulated.

What is the water temperature in January in Cudjoe Key?

In January, the average ocean temperature in Cudjoe Key, Florida, is 72.3°F (22.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 72.3°F (22.4°C) water.

How many hours of daylight does Cudjoe Key have in January?

The average length of the day in January is 10.8h.

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

In January, the average sunshine is 7.2h.

When is the lowest UV index in Cudjoe Key?

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

What is the UV index reading in January in Cudjoe Key?

In January, the average daily maximum UV index in Cudjoe Key is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in January
Cudjoe Key, FL

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

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in January: 68.5°F

The month with the highest average low temperature is August (83.1°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).

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Average pressure in January
Cudjoe Key, FL

Average pressure in January - Cudjoe Key, FL
  • Average pressure in January: 30.09"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are September and October (29.93").

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Average wind speed in January
Cudjoe Key, FL

Average wind speed in January - Cudjoe Key, FL
  • Average wind speed in January: 14.3mph

The windiest month (with the highest average wind speed) is November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.4mph).

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Average humidity in January
Cudjoe Key, FL

Average humidity in January - Cudjoe Key, FL
  • Average humidity in January: 76%

The month with the highest relative humidity is February (78%).
Months with the lowest relative humidity are July, August and September (74%).

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Average rainfall in January
Cudjoe Key, FL

Average rainfall in January - Cudjoe Key, FL
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is September (3.54").
The driest month (with the least rainfall) is March (0.43").

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Average rainfall days in January
Cudjoe Key, FL

Average rainfall days in January - Cudjoe Key, FL
  • Average rainfall days in January: 10.2 days

The month with the highest number of rainy days is September (20.8 days).
The month with the least rainy days is March (9.4 days).

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Average sea temperature in January
Cudjoe Key, FL

Average sea temperature in January - Cudjoe Key, FL
  • Average sea temperature in January: 72.4°F

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 (72.1°F).

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Average daylight in January /
Average sunshine in January
Cudjoe Key, FL

Average daylight in January / Average sunshine in January - Cudjoe Key, FL
  • Average daylight in January: 10.8h

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

  • Average sunshine in January: 7.2h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.5h).

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Average sunshine days in January
Cudjoe Key, FL

Average sunshine days in January - Cudjoe Key, FL
  • Average sunshine days in January: 17 days

The month with the most sunshine days is March (19.6 days).
The month with the least sunshine days is September (6.2 days).

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Average UV index in January
Cudjoe Key, FL

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

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
Cudjoe Key, FL

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

The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).

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Average visibility in January
Cudjoe Key, FL

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

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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