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
Kähäri records a mild change in average high-temperature during December, easing from an icy 4.5°C (40.1°F) in November to a still cold 1.1°C (34°F). Kähäri's December nights demonstrate minimal variation from the daytime temperatures, with an average of -2.2°C (28°F).Humidity
The average relative humidity in December in Kähäri, Finland, is 87%.Rainfall
In Kähäri, during December, the rain falls for 11.1 days and regularly aggregates up to 41mm (1.61") of precipitation. In Kähäri, during the entire year, the rain falls for 133.7 days and collects up to 390mm (15.35") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Kähäri, in December, snow falls for 12.4 days, with typically accumulated 82mm (3.23") of snow. In Kähäri, during the entire year, snow falls for 60.5 days and aggregates up to 454mm (17.87") of snow.Daylight
With an average of 5h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 09:10 and sunset at 15:29. On the last day of the month, sunrise is at 09:37 and sunset at 15:30 EET.
Sunshine
The month with the least sunshine in Kähäri is December, with an average of 2h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Kähäri in December?
What is the average humidity in December in Kähäri?
How many days does it rain in December in Kähäri?
How much does it snow in Kähäri in December?
What is the month with the shortest days in Kähäri?
How many hours of daylight does Kähäri have in December?
When are sunrise and sunset in December in Kähäri?
What is the month with the least sunshine in Kähäri?
How many hours of sunshine does Kähäri have in December?
What are the months with the lowest UV index in Kähäri?
How high is the UV index in December in Kähäri?
Average temperature in December
Kähäri, Finland
- Average high temperature in December: 1.1°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 (-1.9°C).
- Average low temperature in December: -2.2°C
The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in December
Kähäri, Finland
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Kähäri, Finland
- Average wind speed in December: 20.4km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in December
Kähäri, Finland
- Average humidity in December: 87%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Kähäri, Finland
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Kähäri, Finland
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
Kähäri, Finland
- Average snowfall in December: 82mm
The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Kähäri, Finland
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Kähäri, Finland
- Average daylight in December: 5h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in December
Kähäri, Finland
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in December
Kähäri, Finland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (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
Kähäri, Finland
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Kähäri, Finland
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
