December weather forecast
Safenwil, Switzerland

December

Weather in December

December, the first month of the winter in Safenwil, is still a cold month, with an average temperature varying between -1.7°C (28.9°F) and 4.2°C (39.6°F).

Temperature

With the commencement of December, Safenwil records a moderate temperature decline, with the average high easing from November's frosty 8.3°C (46.9°F) to an icy 4.2°C (39.6°F). Safenwil's average low-temperature during December nights is observed to be a freezing cold -1.7°C (28.9°F).

Humidity

The average relative humidity in December in Safenwil is 86%.

Rainfall

In Safenwil, Switzerland, during December, the rain falls for 15.2 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, there are 190.8 rainfall days, and 880mm (34.65") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Safenwil, in December, during 7.9 snowfall days, 143mm (5.63") of snow is typically accumulated. Throughout the year, there are 39.9 snowfall days, and 652mm (25.67") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 07:54 and sunset at 16:39. On the last day of December, sunrise is at 08:14 and sunset at 16:47 CET.

Sunshine

The month with the least sunshine in Safenwil is December, with an average of 5h of sunshine.

UV index

The months with the lowest UV index in Safenwil are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 in December translates into this advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

Is it cold in Safenwil during December?
During December, Safenwil experiences an average high-temperature of 4.2°C (39.6°F) and a low-temperature of -1.7°C (28.9°F).
What is the average humidity in December in Safenwil?
In Safenwil, the average relative humidity in December is 86%.
How much does it rain in Safenwil in December?
In Safenwil, Switzerland, in December, during 15.2 rainfall days, 81mm (3.19") of precipitation is typically accumulated.
How many days does it snow in December in Safenwil?
In Safenwil, during December, snow falls for 7.9 days and regularly aggregates up to 143mm (5.63") of snow.
What is the month with the shortest days in Safenwil?
With an average of 8h and 30min of daylight, December has the shortest days of the year in Safenwil.
What is the average length of the day in December in Safenwil?
In Safenwil, Switzerland, the average day length in December is 8h and 33min.
When are sunrise and sunset in December in Safenwil?
On the first day of December, sunrise is at 07:54 and sunset at 16:39. On the last day of the month, sunrise is at 08:14 and sunset at 16:47 CET.
What is the month with the least sunshine in Safenwil?
With an average of 5h of sunshine, December has the least sunshine of the year in Safenwil.
How long on average sun shines in December in Safenwil?
In December, the average sunshine duration in Safenwil, Switzerland, is 5h.
What are the months with the lowest UV index in Safenwil?
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Safenwil.
What is the UV index reading in December in Safenwil?
In Safenwil, Switzerland, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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
Safenwil, 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).

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