December weather forecast
Sarnen, Switzerland

December

Weather in December

The first month of the winter, December, is also an icy month in Sarnen, Switzerland, with an average temperature fluctuating between 0.8°C (33.4°F) and -6.5°C (20.3°F).

Temperature

December brings a minor shift in the average high-temperature, adjusting from a wintry 4.5°C (40.1°F) in November to a still cold 0.8°C (33.4°F). In Sarnen, an average nighttime temperature of -6.5°C (20.3°F) is expected during December.

Humidity

The average relative humidity in December is 84%.

Rainfall

In Sarnen, in December, during 5.9 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, there are 117.2 rainfall days, and 382mm (15.04") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall in Sarnen, Switzerland, is December, when snow falls for 10.7 days and typically aggregates up to 192mm (7.56") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 07:52 and sunset at 16:40. On the last day of the month, sunrise is at 08:12 and sunset at 16:48 CET.

Sunshine

The month with the least sunshine in Sarnen, Switzerland, is December, with an average of 5.1h of sunshine.

UV index

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

How cold is it in Sarnen in December?
In December, the average high-temperature and low-temperature are 0.8°C (33.4°F) and -6.5°C (20.3°F) respectively.
What is the average humidity in December in Sarnen?
The average relative humidity in December is 84%.
How much does it rain in Sarnen in December?
In Sarnen, Switzerland, in December, it is raining for 5.9 days, with typically 40mm (1.57") of accumulated precipitation.
When does it snow the most in Sarnen?
The month with the most snowfall in Sarnen is December, when snow falls for 10.7 days and typically aggregates up to 192mm (7.56") of snow.
How many days does it snow in December in Sarnen?
In Sarnen, Switzerland, in December, during 10.7 snowfall days, 192mm (7.56") of snow is typically accumulated.
What is the month with the shortest days in Sarnen?
The month with the shortest days is December, with an average of 8h and 36min of daylight.
How many hours of daylight does Sarnen have in December?
In Sarnen, the average day length in December is 8h and 36min.
When are sunrise and sunset in December in Sarnen?
On the first day of December in Sarnen, Switzerland, sunrise is at 07:52 and sunset at 16:40. On the last day of the month, sunrise is at 08:12 and sunset at 16:48 CET.
What is the month with the least sunshine in Sarnen?
The month with the least sunshine in Sarnen, Switzerland, is December, with an average of 5.1h of sunshine.
How long on average sun shines in December in Sarnen?
The average sunshine duration in December in Sarnen is 5.1h.
What is the UV index intensity in December in Sarnen?
The average daily maximum UV index in December in Sarnen, Switzerland, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Sarnen, Switzerland
  • Average high temperature in December: 0.8°C

The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is January (-0.6°C).

  • Average low temperature in December: -6.5°C

The month with the highest average low temperature is August (8.6°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).

Average pressure in December
Sarnen, 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 (1015.5mbar).

Average wind speed in December
Sarnen, Switzerland
  • Average wind speed in December: 8.1km/h

The windiest month (with the highest average wind speed) is December (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).

Average humidity in December
Sarnen, Switzerland
  • Average humidity in December: 84%

The months with the highest relative humidity are February and March (89%).
The months with the lowest relative humidity are July and August (80%).

Average rainfall in December
Sarnen, Switzerland
  • Average rainfall in December: 40mm

The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in December
Sarnen, Switzerland
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in December
Sarnen, Switzerland
  • Average snowfall in December: 192mm

The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Sarnen, Switzerland
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Sarnen, Switzerland
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December
Sarnen, Switzerland
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in December
Sarnen, Switzerland
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).

Average cloud cover in December
Sarnen, Switzerland
  • Average cloud cover in December: 45

The months with the most cloud cover are February and May (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 36).

Average visibility in December
Sarnen, Switzerland
  • Average visibility in December: 8km

The months with the highest visibility are April, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March, May and September (7km).

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