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 commencement of December indicates a gentle shift in the average high-temperature, receding from November's 5.9°C (42.6°F) to a still wintry 2.7°C (36.9°F). Viiri records a mild decrease in temperature during the nights of December, averaging a still icy 0.5°C (32.9°F).Humidity
In December, the average relative humidity in Viiri is 85%.Rainfall
December is the month with the most rainfall. Rain falls for 15.3 days and accumulates 53mm (2.09") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Viiri, in December, during 14 snowfall days, 97mm (3.82") of snow is typically accumulated. In Viiri, during the entire year, snow falls for 70.6 days and aggregates up to 509mm (20.04") of snow.Daylight
December has the shortest days of the year in Viiri, Estonia, with an average of 6h and 24min of daylight.On the first day of December in Viiri, sunrise is at 08:55 and sunset at 15:42. On the last day of the month, sunrise is at 09:20 and sunset at 15:45 EET.
Sunshine
December has the least sunshine of the year in Viiri, with an average of 1.8h of sunshine.UV index
The months with the lowest UV index are January, March and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 1 during December translates 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. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Viiri?
What is the average humidity in December in Viiri?
What is the wettest month in Viiri?
How much does it rain in Viiri in December?
How much does it snow in Viiri in December?
What is the month with the shortest days in Viiri?
What is the average length of the day in December in Viiri?
When are sunrise and sunset in December in Viiri?
What is the month with the least sunshine in Viiri?
How many hours of sunshine does Viiri have in December?
What are the months with the lowest UV index in Viiri?
What is the UV index intensity in December in Viiri?
Average temperature in December
Viiri, Estonia
- Average high temperature in December: 2.7°C
The warmest months (with the highest average high temperature) are July and August (19.8°C).
The month with the lowest average high temperature is February (-0.4°C).
- Average low temperature in December: 0.5°C
The months with the highest average low temperature are July and August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-3.2°C).
Average pressure in December
Viiri, Estonia
- Average pressure in December: 1008.8mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in December
Viiri, Estonia
- Average wind speed in December: 23.8km/h
The windiest month (with the highest average wind speed) is December (23.8km/h).
The calmest month (with the lowest average wind speed) is May (15.6km/h).
Average humidity in December
Viiri, Estonia
- Average humidity in December: 85%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May, June, July and August (75%).
Average rainfall in December
Viiri, Estonia
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Viiri, Estonia
- Average rainfall days in December: 15.3 days
The month with the highest number of rainy days is November (17.8 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in December
Viiri, Estonia
- Average snowfall in December: 97mm
The month with the highest snowfall is January (145mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Viiri, Estonia
- Average snowfall days in December: 14 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Viiri, Estonia
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in December: 1h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in December
Viiri, Estonia
- Average sunshine days in December: 3.6 days
The month with the most sunshine days is May (19.6 days).
The month with the least sunshine days is December (3.6 days).
Average UV index in December
Viiri, Estonia
- 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, March and December (UV index 1).
Average cloud cover in December
Viiri, Estonia
- Average cloud cover in December: 77
The month with the most cloud cover is December (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Viiri, Estonia
- Average visibility in December: 8km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February and December (8km).
