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
December
Weather in December
Temperature
The beginning of December brings a slight decrease in the average high-temperature, transitioning from a cold 2.5°C (36.5°F) in November to a subzero cold -1.5°C (29.3°F). Simpele reports an average low temperature of -5.2°C (22.6°F) in December, a minor decrease from the day's highs.Humidity
The average relative humidity in December is 93%.Rainfall
In December, the rain falls for 6.8 days. Throughout December, 38mm (1.5") of precipitation is accumulated. In Simpele, during the entire year, the rain falls for 122.1 days and collects up to 422mm (16.61") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Simpele, in December, snow falls for 18.2 days, with typically accumulated 181mm (7.13") of snow. Throughout the year, there are 92.3 snowfall days, and 969mm (38.15") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 5h and 36min of daylight.On the first day of the month, sunrise is at 08:51 and sunset at 14:52. On the last day of December, sunrise is at 09:19 and sunset at 14:52 EET.
Sunshine
December has the least sunshine of the year, with an average of 1.3h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Simpele. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun. 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 it in December?
What is the average humidity in December in Simpele?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Simpele?
What is the average length of the day in December?
What time are sunrise and 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?
How high is the UV index in December in Simpele?
Average temperature in December
Simpele, Finland
- Average high temperature in December: -1.5°C
The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in December: -5.2°C
The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is January (-8.9°C).
Average pressure in December
Simpele, Finland
- Average pressure in December: 1008.9mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in December
Simpele, 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 months (with the lowest average wind speed) are July and August (9.8km/h).
Average humidity in December
Simpele, 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 (65%).
Average rainfall in December
Simpele, Finland
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is August (44mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Simpele, Finland
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Simpele, Finland
- Average snowfall in December: 181mm
The month with the highest snowfall is January (212mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Simpele, Finland
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Simpele, Finland
- Average daylight in December: 5h and 4min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in December
Simpele, Finland
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is May (17.6 days).
The month with the least sunshine days is December (9.4 days).
Average UV index in December
Simpele, 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, October, November and December (UV index 1).
Average cloud cover in December
Simpele, Finland
- Average cloud cover in December: 82
The month with the most cloud cover is February (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
Simpele, Finland
- Average visibility in December: 6km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
