Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January brings the lowest temperatures, with an average high of 72.7°F (22.6°C) and an average low of 68.5°F (20.3°C).Humidity
The average relative humidity in January is 76%.Rainfall
In January, the rain falls for 10.2 days. Throughout January, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 171.1 rainfall days, and 21.54" (547mm) of precipitation is accumulated.Ocean temperature
In Cudjoe Key, in January, the average water temperature is 72.3°F (22.4°C).Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 72.3°F (22.4°C) waters. (For comparison, the Olympic swimming standard is set between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In Cudjoe Key, the average length of the day in January is 10h and 49min.On the first day of the month, sunrise is at 7:10 am and sunset at 5:48 pm. On the last day of January, sunrise is at 7:08 am and sunset at 6:10 pm EST.
Sunshine
In Cudjoe Key, the average sunshine in January is 7.2h.UV index
With an average maximum UV index of 5, January is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a regular UV index of 5 translates into these guidelines:
Exercise prevention - Warding off sunburn is urged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Heads up! UV intensity is amplified by reflections from water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What is the average January temperature?
What is the average humidity in January?
How many days does it rain in January?
What is the ocean temperature in January?
What is the average length of the day in January in Cudjoe Key?
When is the sunrise / sunset in January?
How many hours of sunshine does Cudjoe Key have in January?
When is the lowest UV index?
How high is the UV index in January?
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).
Average pressure in January
Cudjoe Key, FL
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
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).
Average humidity in January
Cudjoe Key, FL
- Average humidity in January: 76%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
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").
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).
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).
Average daylight in January /
Average sunshine in January
Cudjoe Key, FL
- Average daylight in January: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January: 7h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
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).
Average UV index in January
Cudjoe Key, 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).
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).
Average visibility in January
Cudjoe Key, 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).
Cudjoe Key, Florida, USA
Weather forecast for your location
2. Allow the app to use your location