January weather forecastDuck Key, FL
January
Weather in January
January, the same as December, in Duck Key, Florida, is an agreeable winter month, with an average temperature varying between 67.5°F (19.7°C) and 72.9°F (22.7°C).Temperature
Duck Key records the coldest temperatures in January, averaging a high of 72.9°F (22.7°C) and a low of 67.5°F (19.7°C).Humidity
In Duck Key, the average relative humidity in January is 75%.Rainfall
In January, the rain falls for 10.5 days. Throughout January, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 186.2 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Ocean temperature
January and February, with an average ocean temperature of 73.9°F (23.3°C), are months with the coldest seawater.Note: While a person's sensitivity to cold is personal, factors like sunshine, wind, and the temperature can influence their comfort in 73.9°F (23.3°C) waters. Olympians, for perspective, swim in waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
The average length of the day in January is 10h and 48min.On the first day of the month, sunrise is at 7:08 am and sunset at 5:46 pm. On the last day of January, sunrise is at 7:06 am and sunset at 6:07 pm EST.
Sunshine
In Duck Key, the average sunshine in January 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 reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be wary! Reflections from sand and water make UV radiation more intense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Duck Key, FL
- Average high temperature in January: 72.9°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 (72.9°F).
- Average low temperature in January: 67.5°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 (67.5°F).
Average pressure in January
Duck Key, 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).
Average wind speed in January
Duck Key, FL
- Average wind speed in January: 13.4mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (9mph).
Average humidity in January
Duck Key, FL
- Average humidity in January: 75%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in January
Duck Key, FL
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is March (0.43").
Average rainfall days in January
Duck Key, FL
- Average rainfall days in January: 10.5 days
The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is February (10.3 days).
Average sea temperature in January
Duck Key, FL
- Average sea temperature in January: 73.9°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).
Average daylight in January /
Average sunshine in January
Duck Key, FL
- Average daylight in January: 10h and 48min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January: 7h and 12min
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 36min).
Average sunshine days in January
Duck Key, FL
- Average sunshine days in January: 16.2 days
The month with the most sunshine days is March (18 days).
The month with the least sunshine days is September (4.6 days).
Average UV index in January
Duck 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
Duck Key, FL
- Average cloud cover in January: 32
The months with the most cloud cover are January and October (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in January
Duck 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).





