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
Karis's weather subtly changes with the onset of December, barely falling from a cold 5°C (41°F) in November to a still icy 1.7°C (35.1°F). During the month of December, Karis identifies an average nighttime low-temperature of -0.9°C (30.4°F), slightly lower than its daytime counterpart.Humidity
In Karis, Finland, the average relative humidity in December is 86%.Rainfall
In December, the rain falls for 14 days. Throughout December, 55mm (2.17") of precipitation is accumulated. In Karis, during the entire year, the rain falls for 165.7 days and collects up to 567mm (22.32") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Karis, during December, snow falls for 14.2 days and regularly aggregates up to 119mm (4.69") of snow. Throughout the year, in Karis, Finland, there are 75.3 snowfall days, and 562mm (22.13") of snow is accumulated.Daylight
With an average of 6h and 0min of daylight, December has the shortest days of the year in Karis.On the first day of the month, sunrise is at 09:01 and sunset at 15:27. On the last day of December, in Karis, sunrise is at 09:28 and sunset at 15:28 EET.
Sunshine
With an average of 1.8h of sunshine, December has the least sunshine of the year in Karis.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Karis. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Karis in December?
What is the average humidity in December in Karis?
How much does it rain in Karis in December?
How many days does it snow in December in Karis?
What is the month with the shortest days in Karis?
What is the average length of the day in December in Karis?
When is the sunrise / sunset in December in Karis?
What is the month with the least sunshine in Karis?
How long on average sun shines in December in Karis?
When is the lowest UV index in Karis?
What is the UV index intensity in December in Karis?
Average temperature in December
Karis, Finland
- Average high temperature in December: 1.7°C
The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -0.9°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-4.4°C).
Average pressure in December
Karis, Finland
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in December
Karis, Finland
- Average wind speed in December: 24km/h
The windiest month (with the highest average wind speed) is December (24km/h).
The calmest month (with the lowest average wind speed) is May (14.9km/h).
Average humidity in December
Karis, Finland
- Average humidity in December: 86%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (74%).
Average rainfall in December
Karis, Finland
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in December
Karis, Finland
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Karis, Finland
- Average snowfall in December: 119mm
The month with the highest snowfall is January (136mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Karis, Finland
- Average snowfall days in December: 14.2 days
The month with the highest number of snowfall days is February (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Karis, Finland
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 1h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in December
Karis, Finland
- Average sunshine days in December: 5.4 days
The month with the most sunshine days is May (15.4 days).
The month with the least sunshine days is December (5.4 days).
Average UV index in December
Karis, Finland
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Karis, Finland
- Average cloud cover in December: 75
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Karis, Finland
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
