December weather forecastKäpylä, Finland
December
Weather in December
The first month of the winter, December, is also a wintry month in Käpylä, Finland, with an average temperature varying between -1.8°C (28.8°F) and 0.8°C (33.4°F).Temperature
The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's wintry 4.5°C (40.1°F) to a still icy 0.8°C (33.4°F). Throughout December, a modest shift from daytime highs is anticipated, with an average low-temperature of -1.8°C (28.8°F).Humidity
In December, the average relative humidity in Käpylä is 88%.Rainfall
In December, in Käpylä, Finland, the rain falls for 12.1 days. Throughout December, 47mm (1.85") of precipitation is accumulated. Throughout the year, there are 144.6 rainfall days, and 465mm (18.31") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Käpylä, Finland. In December, it is snowing for 15.5 days. Throughout December, 129mm (5.08") of snow is accumulated. In Käpylä, during the entire year, snow falls for 84.6 days and aggregates up to 688mm (27.09") of snow.Daylight
With an average of 6h and 0min of daylight, December has the shortest days of the year in Käpylä.On the first day of December, sunrise is at 08:57 and sunset at 15:21. On the last day of the month, sunrise is at 09:24 and sunset at 15:22 EET.
Sunshine
With an average of 1.7h of sunshine, December has the least sunshine of the year in Käpylä, Finland.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Käpylä. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. It's recommended to limit sun exposure when its radiation is at its peak during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Käpylä, Finland
- Average high temperature in December: 0.8°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.2°C).
- Average low temperature in December: -1.8°C
The month with the highest average low temperature is July (14.5°C).
The coldest months (with the lowest average low temperature) are January and February (-5.5°C).
Average pressure in December
Käpylä, Finland
- Average pressure in December: 1008.6mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in December
Käpylä, Finland
- Average wind speed in December: 21.1km/h
The windiest month (with the highest average wind speed) is December (21.1km/h).
The calmest month (with the lowest average wind speed) is May (13.7km/h).
Average humidity in December
Käpylä, Finland
- Average humidity in December: 88%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Käpylä, Finland
- Average rainfall in December: 47mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Käpylä, Finland
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in December
Käpylä, Finland
- Average snowfall in December: 129mm
The month with the highest snowfall is January (159mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Käpylä, Finland
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Käpylä, Finland
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 1h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in December
Käpylä, Finland
- Average sunshine days in December: 5.6 days
The month with the most sunshine days is May (17 days).
The month with the least sunshine days is December (5.6 days).
Average UV index in December
Käpylä, Finland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Käpylä, Finland
- Average cloud cover in December: 75
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Käpylä, Finland
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
