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
The onset of December is marked by a minor decrease in temperature, transitioning from an icy 3.8°C (38.8°F) in November to a still wintry 0.3°C (32.5°F). Reposaari's nocturnal average in December closely mirrors its daytime temperatures, settling at a subzero cold -2.5°C (27.5°F).Humidity
In December, the average relative humidity in Reposaari, Finland, is 89%.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 51mm (2.01") of precipitation is accumulated. In Reposaari, during the entire year, the rain falls for 154.3 days and collects up to 508mm (20") of precipitation.Snowfall
January through May, October through December are months with snowfall in Reposaari. In Reposaari, in December, snow falls for 15.9 days, with typically accumulated 142mm (5.59") of snow. In Reposaari, during the entire year, snow falls for 82.2 days and aggregates up to 699mm (27.52") of snow.Daylight
With an average of 5h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:24 and sunset at 15:22. On the last day of December, in Reposaari, Finland, sunrise is at 09:52 and sunset at 15:22 EET.
Sunshine
The month with the least sunshine is December, with an average of 2h of sunshine.UV index
January through March 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 vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Reposaari in December?
What is the average humidity in December in Reposaari?
How many days does it rain in December in Reposaari?
How many days does it snow in December in Reposaari?
What is the month with the shortest days in Reposaari?
How many hours of daylight does Reposaari have in December?
When are sunrise and sunset in December in Reposaari?
What is the month with the least sunshine in Reposaari?
How many hours of sunshine does Reposaari have in December?
What are the months with the lowest UV index in Reposaari?
What is the UV index intensity in December in Reposaari?
Average temperature in December
Reposaari, Finland
- Average high temperature in December: 0.3°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is July (13.4°C).
The coldest month (with the lowest average low temperature) is January (-6°C).
Average pressure in December
Reposaari, Finland
- Average pressure in December: 1006.8mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in December
Reposaari, Finland
- Average wind speed in December: 16.6km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in December
Reposaari, Finland
- Average humidity in December: 89%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Reposaari, Finland
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is July (63mm).
The driest months (with the least rainfall) are March and April (31mm).
Average rainfall days in December
Reposaari, Finland
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Reposaari, Finland
- Average snowfall in December: 142mm
The month with the highest snowfall is February (163mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Reposaari, Finland
- Average snowfall days in December: 15.9 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Reposaari, Finland
- Average daylight in December: 5h and 3min
The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in December
Reposaari, Finland
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in December
Reposaari, 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 and December (UV index 1).
Average cloud cover in December
Reposaari, Finland
- Average cloud cover in December: 71
The months with the most cloud cover are January, February and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Reposaari, Finland
- Average visibility in December: 8km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (7km).
Reposaari, Finland
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