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 beginning of December brings a slight decrease in the average high-temperature, transitioning from a chilly 8°C (46.4°F) in November to a cold 4.6°C (40.3°F). Mertzen logs an average low-temperature of -0.4°C (31.3°F) during the nights of December, subtly lower than its daytime highs.Humidity
The months with the highest humidity in Mertzen are January and December, with an average relative humidity of 88%.Rainfall
In Mertzen, France, in December, it is raining for 15.1 days, with typically 84mm (3.31") of accumulated precipitation. Throughout the year, in Mertzen, there are 189.8 rainfall days, and 741mm (29.17") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Mertzen. In Mertzen, during December, snow falls for 7.8 days and regularly aggregates up to 91mm (3.58") of snow. In Mertzen, during the entire year, snow falls for 37.1 days and aggregates up to 450mm (17.72") of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:59 and sunset at 16:42. On the last day of the month, sunrise is at 08:19 and sunset at 16:49 CET.
Sunshine
The month with the least sunshine in Mertzen is December, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index in Mertzen are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold does it get in Mertzen in December?
What is the most humid month in Mertzen?
What is the average humidity in December in Mertzen?
How much does it rain in Mertzen in December?
How many days does it snow in December in Mertzen?
What is the month with the shortest days in Mertzen?
How many hours of daylight does Mertzen have in December?
What time are sunrise and sunset in December in Mertzen?
What is the month with the least sunshine in Mertzen?
How many hours of sunshine does Mertzen have in December?
When is the lowest UV index in Mertzen?
How high is the UV index in December in Mertzen?
Average temperature in December
Mertzen, France
- Average high temperature in December: 4.6°C
The warmest month (with the highest average high temperature) is July (22.7°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in December: -0.4°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in December
Mertzen, France
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in December
Mertzen, France
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in December
Mertzen, France
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in December
Mertzen, France
- Average rainfall in December: 84mm
The wettest month (with the highest rainfall) is June (86mm).
The driest month (with the least rainfall) is September (36mm).
Average rainfall days in December
Mertzen, France
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (12.4 days).
Average snowfall in December
Mertzen, France
- Average snowfall in December: 91mm
The month with the highest snowfall is January (114mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Mertzen, France
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mertzen, France
- 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: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Mertzen, France
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in December
Mertzen, France
- 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
Mertzen, France
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Mertzen, France
- 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).
Mertzen, France
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