December weather forecast
Gletsch, Switzerland

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Gletsch, Switzerland, with temperature in the range of an average low of -9.6°C (14.7°F) and an average high of -1.8°C (28.8°F).

Temperature

Gletsch's transition into December involves a gentle shift in temperature, receding from a wintry 1.6°C (34.9°F) in November to a freezing cold -1.8°C (28.8°F). In the month of December, the nighttime temperature in Gletsch dips to a steady average of -9.6°C (14.7°F).

Humidity

The average relative humidity in December is 87%.

Rainfall

In December, in Gletsch, the rain falls for 4.7 days. Throughout December, 118mm (4.65") of precipitation is accumulated. Throughout the year, in Gletsch, Switzerland, there are 173.4 rainfall days, and 1380mm (54.33") of precipitation is accumulated.

Snowfall

January through June, August through December are months with snowfall in Gletsch. December is the month with the most snowfall in Gletsch. Snow falls for 19 days and accumulates 787mm (30.98") 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 07:50 and sunset at 16:41. On the last day of the month, sunrise is at 08:10 and sunset at 16:49 CET.

Sunshine

The months with the least sunshine in Gletsch are January and December, with an average of 4.5h of sunshine.

UV index

The average daily maximum UV index in December in Gletsch is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

How cold is December in Gletsch?
The average high-temperature, in December, in Gletsch, is -1.8°C (28.8°F), while the average low-temperature is -9.6°C (14.7°F).
What is the average humidity in December in Gletsch?
In December, the average relative humidity in Gletsch, Switzerland, is 87%.
How many days does it rain in December in Gletsch?
In Gletsch, Switzerland, during December, the rain falls for 4.7 days and regularly aggregates up to 118mm (4.65") of precipitation.
When does it snow the most in Gletsch?
December is the month with the most snowfall in Gletsch, Switzerland. Snow falls for 19 days and accumulates 787mm (30.98") of snow.
How many days does it snow in December in Gletsch?
In Gletsch, Switzerland, in December, during 19 snowfall days, 787mm (30.98") of snow is typically accumulated.
What is the month with the shortest days in Gletsch?
December has the shortest days of the year in Gletsch, with an average of 8h and 36min of daylight.
What is the average length of the day in December in Gletsch?
In December, the average day length is 8h and 39min.
When is the sunrise / sunset in December in Gletsch?
In December, on the first day of the month, sunrise is at 07:50 and sunset at 16:41. On the last day of the month, sunrise is at 08:10 and sunset at 16:49 CET.
What is the month with the least sunshine in Gletsch?
The months with the least sunshine in Gletsch are January and December, with an average of 4.5h of sunshine.
How many hours of sunshine does Gletsch have in December?
In December, the average sunshine duration in Gletsch is 4.5h.
What is the UV index reading in December in Gletsch?
In Gletsch, Switzerland, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Gletsch, Switzerland
  • Average high temperature in December: -1.8°C

The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in December: -9.6°C

The months with the highest average low temperature are July and August (6.3°C).
The coldest month (with the lowest average low temperature) is February (-11.4°C).

Average pressure in December
Gletsch, 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 (1015.3mbar).

Average wind speed in December
Gletsch, Switzerland
  • Average wind speed in December: 8.9km/h

The windiest month (with the highest average wind speed) is December (8.9km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).

Average humidity in December
Gletsch, Switzerland
  • Average humidity in December: 87%

The month with the highest relative humidity is March (93%).
The months with the lowest relative humidity are July and August (82%).

Average rainfall in December
Gletsch, Switzerland
  • Average rainfall in December: 118mm

The wettest month (with the highest rainfall) is August (180mm).
The driest month (with the least rainfall) is February (65mm).

Average rainfall days in December
Gletsch, Switzerland
  • Average rainfall days in December: 4.7 days

The months with the highest number of rainy days are July and August (25.5 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in December
Gletsch, Switzerland
  • Average snowfall in December: 787mm

The month with the highest snowfall is December (787mm).
The month with the least snowfall is July (0mm).

Average snowfall days in December
Gletsch, Switzerland
  • Average snowfall days in December: 19 days

The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is July (0 days).

Average daylight in December /
Average sunshine in December
Gletsch, 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: 4h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).

Average sunshine days in December
Gletsch, Switzerland
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is October (13.1 days).
The month with the least sunshine days is August (4 days).

Average UV index in December
Gletsch, 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, February, April and November (UV index 1).

Average cloud cover in December
Gletsch, Switzerland
  • Average cloud cover in December: 53

The months with the most cloud cover are February, March, April and May (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 44).

Average visibility in December
Gletsch, Switzerland
  • Average visibility in December: 7km

The months with the highest visibility are June, July and August (8km).
The month with the lowest visibility is January (5km).

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