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 arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's chilly 8.3°C (46.9°F) to an icy 4.2°C (39.6°F). Mervelier throughout December, records an average low-temperature of -1.7°C (28.9°F).Humidity
In Mervelier, Switzerland, the average relative humidity in December is 86%.Rainfall
In Mervelier, in December, during 15.2 rainfall days, 81mm (3.19") of precipitation is typically accumulated. Throughout the year, in Mervelier, there are 190.8 rainfall days, and 880mm (34.65") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Mervelier, in December, during 7.9 snowfall days, 143mm (5.63") of snow is typically accumulated. In Mervelier, Switzerland, during the entire year, snow falls for 39.9 days and aggregates up to 652mm (25.67") of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Mervelier, Switzerland.On the first day of the month, sunrise is at 07:56 and sunset at 16:41. On the last day of December, sunrise is at 08:17 and sunset at 16:49 CET.
Sunshine
The month with the least sunshine in Mervelier is December, with an average of 5h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Mervelier?
What is the average humidity in December in Mervelier?
How many days does it rain in December in Mervelier?
How many days does it snow in December in Mervelier?
What is the month with the shortest days in Mervelier?
What is the average length of the day in December in Mervelier?
When is the sunrise / sunset in December in Mervelier?
What is the month with the least sunshine in Mervelier?
How long on average sun shines in December in Mervelier?
What is the month with the lowest UV index in Mervelier?
What is the UV index intensity in December in Mervelier?
Average temperature in December
Mervelier, Switzerland
- Average high temperature in December: 4.2°C
The warmest months (with the highest average high temperature) are July and August (23.3°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in December: -1.7°C
The months with the highest average low temperature are July and August (11.8°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in December
Mervelier, Switzerland
- Average pressure in December: 1020.9mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Mervelier, Switzerland
- Average wind speed in December: 8.5km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in December
Mervelier, Switzerland
- Average humidity in December: 86%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in December
Mervelier, Switzerland
- Average rainfall in December: 81mm
The wettest month (with the highest rainfall) is May (106mm).
The driest month (with the least rainfall) is September (45mm).
Average rainfall days in December
Mervelier, Switzerland
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is May (22.4 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in December
Mervelier, Switzerland
- Average snowfall in December: 143mm
The month with the highest snowfall is February (153mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Mervelier, Switzerland
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mervelier, Switzerland
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Mervelier, Switzerland
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is May (6.6 days).
Average UV index in December
Mervelier, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Mervelier, Switzerland
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Mervelier, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
