December weather forecastPonte Brolla, Switzerland

December

Weather in December

The first month of the winter, December, is also an icy month in Ponte Brolla, Switzerland, with an average temperature ranging between max 2°C (35.6°F) and min -4.6°C (23.7°F).

Temperature

December is characterized by a mild reduction in the average high-temperature, from an icy 5.5°C (41.9°F) in November to a still cold 2°C (35.6°F). In December, Ponte Brolla reports a consistent average low-temperature of -4.6°C (23.7°F) during the nights.

Humidity

The average relative humidity in December in Ponte Brolla is 78%.

Rainfall

In December, in Ponte Brolla, the rain falls for 8.6 days. Throughout December, 70mm (2.76") of precipitation is accumulated. In Ponte Brolla, during the entire year, the rain falls for 200.8 days and collects up to 1253mm (49.33") of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Ponte Brolla, in December, snow falls for 12.2 days, with typically accumulated 260mm (10.24") of snow. In Ponte Brolla, during the entire year, snow falls for 63.5 days and aggregates up to 1500mm (59.06") of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 42min of daylight.
On the first day of the month, sunrise is at 07:47 and sunset at 16:40. On the last day of December, sunrise is at 08:07 and sunset at 16:48 CET.

Sunshine

The average sunshine in December is 6.3h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

The high-temperature, in December, in Ponte Brolla, records 2°C (35.6°F), while the low-temperature is -4.6°C (23.7°F).

In Ponte Brolla, the average relative humidity in December is 78%.

In Ponte Brolla, Switzerland, during December, the rain falls for 8.6 days and regularly aggregates up to 70mm (2.76") of precipitation.

In Ponte Brolla, Switzerland, in December, snow falls for 12.2 days, with typically accumulated 260mm (10.24") of snow.

The month with the shortest days in Ponte Brolla, Switzerland, is December, with an average of 8h and 42min of daylight.

In Ponte Brolla, the average day length in December is 8h and 41min.

In December, on the first day of the month, sunrise is at 07:47 and sunset at 16:40. On the last day of the month, in Ponte Brolla, Switzerland, sunrise is at 08:07 and sunset at 16:48 CET.

The average sunshine duration in December in Ponte Brolla, Switzerland, is 6.3h.

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Ponte Brolla.

The average daily maximum UV index in December in Ponte Brolla is 2. A UV Index value of 2, and less, symbolizes 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
Ponte Brolla, Switzerland

  • Average high temperature in December: 2°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (0.9°C).

  • Average low temperature in December: -4.6°C

The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (-5.9°C).

Average pressure in December
Ponte Brolla, Switzerland

  • 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 April (1015.1mbar).

Average wind speed in December
Ponte Brolla, Switzerland

  • Average wind speed in December: 7.2km/h

The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.8km/h).

Average humidity in December
Ponte Brolla, Switzerland

  • Average humidity in December: 78%

The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (76%).

Average rainfall in December
Ponte Brolla, Switzerland

  • Average rainfall in December: 70mm

The wettest month (with the highest rainfall) is November (164mm).
The driest month (with the least rainfall) is January (45mm).

Average rainfall days in December
Ponte Brolla, Switzerland

  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is July (25.5 days).
The months with the least rainy days are February and December (8.6 days).

Average snowfall in December
Ponte Brolla, Switzerland

  • Average snowfall in December: 260mm

The month with the highest snowfall is November (334mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Ponte Brolla, Switzerland

  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ponte Brolla, Switzerland

  • Average daylight in December: 8h and 42min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 6h and 18min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).

Average sunshine days in December
Ponte Brolla, Switzerland

  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is June (3.1 days).

Average UV index in December
Ponte Brolla, 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, March, October, November and December (UV index 2).

Average cloud cover in December
Ponte Brolla, Switzerland

  • Average cloud cover in December: 31

The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in December
Ponte Brolla, Switzerland

  • Average visibility in December: 9km

The months with the highest visibility are April, May, June, July, August and December (9km).
The months with the lowest visibility are January, February, March, September, October and November (8km).