December weather forecastHervanta, Finland
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Hervanta, Finland, with an average temperature fluctuating between -1.7°C (28.9°F) and -4.8°C (23.4°F).Temperature
Hervanta's weather subtly changes with the onset of December, barely falling from a wintry 2.5°C (36.5°F) in November to a freezing cold -1.7°C (28.9°F). A mild drop to an average of -4.8°C (23.4°F) marks the nights during December.Humidity
In Hervanta, the average relative humidity in December is 93%.Rainfall
In Hervanta, in December, during 4.9 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, there are 114.9 rainfall days, and 260mm (10.24") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Hervanta, in December, during 15.1 snowfall days, 84mm (3.31") of snow is typically accumulated. Throughout the year, there are 85.3 snowfall days, and 453mm (17.83") of snow is accumulated.Daylight
With an average of 5h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:13 and sunset at 15:14. On the last day of December, sunrise is at 09:41 and sunset at 15:14 EET.
Sunshine
The month with the least sunshine is December, with an average of 1.5h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hervanta, Finland
- Average high temperature in December: -1.7°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-4.3°C).
- Average low temperature in December: -4.8°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is January (-8.4°C).
Average pressure in December
Hervanta, Finland
- Average pressure in December: 1007.5mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in December
Hervanta, Finland
- Average wind speed in December: 12.6km/h
The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in December
Hervanta, Finland
- Average humidity in December: 93%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in December
Hervanta, Finland
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is July (37mm).
The driest months (with the least rainfall) are March and April (16mm).
Average rainfall days in December
Hervanta, Finland
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Hervanta, Finland
- Average snowfall in December: 84mm
The months with the highest snowfall are January, February and March (86mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Hervanta, Finland
- Average snowfall days in December: 15.1 days
The month with the highest number of snowfall days is March (17.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hervanta, Finland
- Average daylight in December: 5h and 36min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in December: 1h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in December
Hervanta, Finland
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in December
Hervanta, Finland
- Average UV index in December: 1
The months with the highest UV index are June and 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
Hervanta, Finland
- Average cloud cover in December: 76
The month with the most cloud cover is February (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 44).
Average visibility in December
Hervanta, Finland
- Average visibility in December: 7km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January, February and March (6km).
