December weather forecastIlmajoki, Finland
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Ilmajoki, Finland, with temperature in the range of an average low of -5.2°C (22.6°F) and an average high of -2°C (28.4°F).Temperature
In the transition to December, Ilmajoki observes a minor drop in the average high-temperature, shifting from a cold 2°C (35.6°F) in November to a freezing cold -2°C (28.4°F). Nighttime, during December, brings an average low of -5.2°C (22.6°F), a modest reduction from the day's peak.Humidity
In Ilmajoki, the average relative humidity in December is 92%.Rainfall
In Ilmajoki, in December, during 6.7 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Ilmajoki, during the entire year, the rain falls for 134.7 days and collects up to 432mm (17.01") of precipitation.Snowfall
January through May, October through December are months with snowfall in Ilmajoki. The month with the most snowfall in Ilmajoki, Finland, is December, when snow falls for 16.3 days and typically aggregates up to 145mm (5.71") of snow.Daylight
December has the shortest days of the year in Ilmajoki, with an average of 5h and 6min of daylight.On the first day of the month, sunrise is at 09:31 and sunset at 15:06. On the last day of December, sunrise is at 10:01 and sunset at 15:04 EET.
Sunshine
December has the least sunshine of the year, with an average of 1.1h of sunshine.UV index
The months with the lowest UV index in Ilmajoki are January through March, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ilmajoki, Finland
- Average high temperature in December: -2°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in December: -5.2°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in December
Ilmajoki, Finland
- Average pressure in December: 1006mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1006mbar).
Average wind speed in December
Ilmajoki, Finland
- Average wind speed in December: 12.1km/h
The windiest month (with the highest average wind speed) is December (12.1km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).
Average humidity in December
Ilmajoki, Finland
- Average humidity in December: 92%
The months with the highest relative humidity are January and February (94%).
The months with the lowest relative humidity are May and June (67%).
Average rainfall in December
Ilmajoki, Finland
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is August (62mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in December
Ilmajoki, Finland
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Ilmajoki, Finland
- Average snowfall in December: 145mm
The month with the highest snowfall is December (145mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ilmajoki, Finland
- Average snowfall days in December: 16.3 days
The month with the highest number of snowfall days is December (16.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ilmajoki, Finland
- Average daylight in December: 5h and 6min
The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).
- Average sunshine in December: 1h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in December
Ilmajoki, Finland
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is February (15 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in December
Ilmajoki, 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
Ilmajoki, Finland
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in December
Ilmajoki, Finland
- Average visibility in December: 7km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February and March (6km).





