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 brings a slight decrease in temperature, down from a wintry 1.8°C (35.2°F) in November to a subzero cold -2.1°C (28.2°F). Pertunmaa's nighttime temperatures in December see a subtle dip to an average of -5.1°C (22.8°F).Humidity
In Pertunmaa, the average relative humidity in December is 93%.Rainfall
In Pertunmaa, in December, during 6.6 rainfall days, 42mm (1.65") of precipitation is typically accumulated. In Pertunmaa, Finland, during the entire year, the rain falls for 125.3 days and collects up to 411mm (16.18") of precipitation.Snowfall
January through June, September through December are months with snowfall in Pertunmaa. December is the month with the most snowfall in Pertunmaa, Finland. Snow falls for 22.1 days and accumulates 236mm (9.29") of snow.Daylight
December has the shortest days of the year in Pertunmaa, with an average of 5h and 30min of daylight.On the first day of December, sunrise is at 09:03 and sunset at 15:03. On the last day of the month, sunrise is at 09:31 and sunset at 15:03 EET.
Sunshine
The month with the least sunshine in Pertunmaa, Finland, is December, with an average of 0.7h of sunshine.UV index
The months with the lowest UV index in Pertunmaa, Finland, 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 minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Pertunmaa in December?
What is the average humidity in December in Pertunmaa?
How much does it rain in Pertunmaa in December?
What is the snowiest month in Pertunmaa?
How much does it snow in Pertunmaa in December?
What is the month with the shortest days in Pertunmaa?
What is the average length of the day in December in Pertunmaa?
When are sunrise and sunset in December in Pertunmaa?
What is the month with the least sunshine in Pertunmaa?
How long on average sun shines in December in Pertunmaa?
What are the months with the lowest UV index in Pertunmaa?
What is the UV index reading in December in Pertunmaa?
Average temperature in December
Pertunmaa, Finland
- Average high temperature in December: -2.1°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (-5.3°C).
- Average low temperature in December: -5.1°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-9.2°C).
Average pressure in December
Pertunmaa, Finland
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in December
Pertunmaa, Finland
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is December (12.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.1km/h).
Average humidity in December
Pertunmaa, Finland
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in December
Pertunmaa, Finland
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Pertunmaa, Finland
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Pertunmaa, Finland
- Average snowfall in December: 236mm
The month with the highest snowfall is December (236mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Pertunmaa, Finland
- Average snowfall days in December: 22.1 days
The month with the highest number of snowfall days is January (24.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Pertunmaa, Finland
- Average daylight in December: 5h and 3min
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 30min).
- Average sunshine in December: 0h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).
Average sunshine days in December
Pertunmaa, Finland
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (6.5 days).
Average UV index in December
Pertunmaa, 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
Pertunmaa, Finland
- Average cloud cover in December: 81
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Pertunmaa, 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 and February (5km).
Pertunmaa, Finland
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