Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's onset introduces a mild reduction in the average high-temperature, from a subzero cold -2.2°C (28°F) in November to a still freezing cold -6.1°C (21°F). An average nighttime temperature of -11.1°C (12°F) marks December.Humidity
In Oulanka, the average relative humidity in December is 96%.Rainfall
In Oulanka, in December, it is raining for 3 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, in Oulanka, there are 120.6 rainfall days, and 464mm (18.27") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. The month with the most snowfall is December, when snow falls for 24 days and typically aggregates up to 263mm (10.35") of snow.Daylight
The month with the shortest days is December, with an average of 2h and 42min of daylight.On the first day of December, sunrise is at 10:00 and sunset at 13:44. On the last day of the month, sunrise is at 10:44 and sunset at 13:29 EET.
Sunshine
With an average of 0.6h of sunshine, December has the least sunshine of the year.UV index
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index in Oulanka?
How high is the UV index in December?
Average temperature in December
Oulanka, Finland
- Average high temperature in December: -6.1°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 (-9°C).
- Average low temperature in December: -11.1°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
Oulanka, Finland
- Average pressure in December: 1005.7mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1005.7mbar).
Average wind speed in December
Oulanka, Finland
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is March (11.4km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in December
Oulanka, Finland
- Average humidity in December: 96%
The months with the highest relative humidity are January and February (97%).
The month with the lowest relative humidity is June (69%).
Average rainfall in December
Oulanka, Finland
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is January (30mm).
Average rainfall days in December
Oulanka, Finland
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Oulanka, Finland
- Average snowfall in December: 263mm
The month with the highest snowfall is December (263mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Oulanka, Finland
- Average snowfall days in December: 24 days
The month with the highest number of snowfall days is December (24 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Oulanka, Finland
- Average daylight in December: 2h and 4min
The month with the longest days is May (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 2h and 42min).
- Average sunshine in December: 0h and 4min
The month with the most sunshine is August (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).
Average sunshine days in December
Oulanka, Finland
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is August (10.7 days).
The month with the least sunshine days is April (4.4 days).
Average UV index in December
Oulanka, Finland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (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
Oulanka, Finland
- Average cloud cover in December: 82
The months with the most cloud cover are January and December (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 51).
Average visibility in December
Oulanka, Finland
- Average visibility in December: 5km
The months with the highest visibility are June and July (9km).
The month with the lowest visibility is January (4km).
Oulanka, Finland
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