December weather forecastUnari, Finland
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Unari, Finland, with temperature in the range of an average low of -10.7°C (12.7°F) and an average high of -6°C (21.2°F).Temperature
The arrival of December correlates with a minor temperature reduction, down from November's -2.7°C (27.1°F) to a still subzero cold -6°C (21.2°F). Night temperatures in December in Unari exhibit a subtle decrease, settling at an average of -10.7°C (12.7°F).Humidity
The months with the highest humidity are January, February, April and December, with an average relative humidity of 96%.Rainfall
In December, in Unari, the rain falls for 3.1 days. Throughout December, 34mm (1.34") of precipitation is accumulated. Throughout the year, in Unari, there are 124.5 rainfall days, and 468mm (18.43") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. December is the month with the most snowfall. Snow falls for 22.9 days and accumulates 261mm (10.28") of snow.Daylight
In Unari, the average length of the day in December is 1h and 54min.On the first day of the month, sunrise is at 10:29 and sunset at 13:42. On the last day of December, sunrise is at 11:21 and sunset at 13:18 EET.
Sunshine
In December, the average sunshine is 0.8h.UV index
The months with the lowest UV index in Unari are January through April, October through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. When the Sun is at its strongest around midday, find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Unari, Finland
- Average high temperature in December: -6°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (-8.8°C).
- Average low temperature in December: -10.7°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-14.6°C).
Average pressure in December
Unari, Finland
- Average pressure in December: 1005.2mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.2mbar).
Average wind speed in December
Unari, Finland
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is March (11.5km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in December
Unari, Finland
- Average humidity in December: 96%
The months with the highest relative humidity are January, February, April and December (96%).
The month with the lowest relative humidity is June (69%).
Average rainfall in December
Unari, Finland
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is July (61mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days in December
Unari, Finland
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (2 days).
Average snowfall in December
Unari, Finland
- Average snowfall in December: 261mm
The month with the highest snowfall is December (261mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Unari, Finland
- Average snowfall days in December: 22.9 days
The month with the highest number of snowfall days is December (22.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Unari, Finland
- Average daylight in December: 1h and 54min
The month with the longest days is May (Average daylight: 20h and 6min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in December: 0h and 48min
The month with the most sunshine is August (Average sunshine: 8h and 30min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).
Average sunshine days in December
Unari, Finland
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is October (12.8 days).
The month with the least sunshine days is April (6.1 days).
Average UV index in December
Unari, Finland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in December
Unari, Finland
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 52).
Average visibility in December
Unari, Finland
- Average visibility in December: 5km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April, November and December (5km).
