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
December's onset brings a negligible change in high-temperatures, falling from a wintry 3.9°C (39°F) in November to a still icy 0°C (32°F). Valli records a consistent average nighttime temperature of -3.7°C (25.3°F) in December, slightly lower than the daytime high.Humidity
In December, the average relative humidity is 92%.Rainfall
In Valli, in December, it is raining for 11.7 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, there are 161 rainfall days, and 505mm (19.88") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Valli. In Valli, in December, snow falls for 16.9 days, with typically accumulated 148mm (5.83") of snow. Throughout the year, there are 85.8 snowfall days, and 815mm (32.09") of snow is accumulated.Daylight
December has the shortest days of the year in Valli, Estonia, with an average of 6h and 24min of daylight.On the first day of the month, sunrise is at 08:47 and sunset at 15:32. On the last day of December, in Valli, sunrise is at 09:13 and sunset at 15:34 EET.
Sunshine
The month with the least sunshine is December, with an average of 1.4h 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 in Valli. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 1 transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Valli in December?
What is the average humidity in December in Valli?
How many days does it rain in December in Valli?
How much does it snow in Valli in December?
What is the month with the shortest days in Valli?
What is the average length of the day in December in Valli?
When is the sunrise / sunset in December in Valli?
What is the month with the least sunshine in Valli?
How long on average sun shines in December in Valli?
When is the lowest UV index in Valli?
What is the UV index intensity in December in Valli?
Average temperature in December
Valli, Estonia
- Average high temperature in December: 0°C
The warmest month (with the highest average high temperature) is July (22.9°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in December: -3.7°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-6.9°C).
Average pressure in December
Valli, Estonia
- Average pressure in December: 1009.4mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).
Average wind speed in December
Valli, Estonia
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is December (13.3km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in December
Valli, Estonia
- Average humidity in December: 92%
The months with the highest relative humidity are January and February (93%).
The months with the lowest relative humidity are May and June (71%).
Average rainfall in December
Valli, Estonia
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Valli, Estonia
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in December
Valli, Estonia
- Average snowfall in December: 148mm
The month with the highest snowfall is February (203mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Valli, Estonia
- Average snowfall days in December: 16.9 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valli, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in December
Valli, Estonia
- Average sunshine days in December: 6.1 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is December (6.1 days).
Average UV index in December
Valli, Estonia
- 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, November and December (UV index 1).
Average cloud cover in December
Valli, Estonia
- Average cloud cover in December: 82
The month with the most cloud cover is December (Cloud cover 82).
The months with the least cloud cover are May and July (Cloud cover 42).
Average visibility in December
Valli, Estonia
- Average visibility in December: 7km
The months with the highest visibility are May, June and July (9km).
The month with the lowest visibility is February (6km).
