December weather forecast
Interlaken, Switzerland

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Weather in December

December in Interlaken means the return of winter. The cold is now fully entrenched, with average high temperatures hovering around -0.5°C (31.1°F). Snow begins to dust the landscape, slowly shrouding the city in a picturesque winter wonderland. The daylight hours are at their shortest, and most activities transition indoors to be in line with the harsh weather conditions. Adventurous visitors during December can enjoy the beginning of the ski season and the magical Christmas atmosphere that envelops the city.

Temperature

The average high-temperature in Interlaken slightly decreases in December, shifting from a wintry 3.1°C (37.6°F) in November to a freezing cold -0.5°C (31.1°F). An average low-temperature of -8.5°C (16.7°F) is observed during the December nights.

Humidity

In December, the average relative humidity is 86%.

Rainfall

In Interlaken, in December, during 10.6 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Interlaken, during the entire year, the rain falls for 192.3 days and collects up to 935mm (36.81") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Interlaken, in December, snow falls for 8.5 days, with typically accumulated 162mm (6.38") of snow. Throughout the year, there are 53.3 snowfall days, and 968mm (38.11") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December in Interlaken, sunrise is at 07:52 and sunset at 16:42. On the last day of the month, sunrise is at 08:12 and sunset at 16:50 CET.

Sunshine

In December, the average sunshine in Interlaken is 4.7h.

UV index

The months with the lowest UV index in Interlaken are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is it in Interlaken in December?

In Interlaken, -0.5°C (31.1°F) is the average high-temperature and -8.5°C (16.7°F) is the average low-temperature during December.

What is the average humidity in December in Interlaken?

The average relative humidity in December in Interlaken, Switzerland, is 86%.

How many days does it rain in December in Interlaken?

In Interlaken, in December, during 10.6 rainfall days, 67mm (2.64") of precipitation is typically accumulated.

How many days does it snow in December in Interlaken?

In Interlaken, Switzerland, in December, snow falls for 8.5 days, with typically accumulated 162mm (6.38") of snow.

What is the month with the shortest days in Interlaken?

The month with the shortest days in Interlaken is December, with an average of 8h and 36min of daylight.

What is the average length of the day in December in Interlaken?

In Interlaken, Switzerland, the average day length in December is 8h and 38min.

When is the sunrise / sunset in December in Interlaken?

In December, on the first day of the month, sunrise is at 07:52 and sunset at 16:42. On the last day of the month, in Interlaken, Switzerland, sunrise is at 08:12 and sunset at 16:50 CET.

How long on average sun shines in December in Interlaken?

The average sunshine duration in December is 4.7h.

What are the months with the lowest UV index in Interlaken?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Interlaken.

What is the UV index intensity in December in Interlaken?

In Interlaken, Switzerland, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Interlaken, Switzerland

Average temperature in December - Interlaken, Switzerland
  • Average high temperature in December: -0.5°C

The warmest month (with the highest average high temperature) is July (17.1°C).
The month with the lowest average high temperature is January (-1.8°C).

  • Average low temperature in December: -8.5°C

The months with the highest average low temperature are July and August (7.3°C).
The coldest month (with the lowest average low temperature) is February (-10°C).

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Average pressure in December
Interlaken, Switzerland

Average pressure in December - Interlaken, Switzerland
  • Average pressure in December: 1021mbar

The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in December
Interlaken, Switzerland

Average wind speed in December - Interlaken, Switzerland
  • Average wind speed in December: 8.3km/h

The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).

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Average humidity in December
Interlaken, Switzerland

Average humidity in December - Interlaken, Switzerland
  • Average humidity in December: 86%

The months with the highest relative humidity are February and March (90%).
The months with the lowest relative humidity are July and August (81%).

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Average rainfall in December
Interlaken, Switzerland

Average rainfall in December - Interlaken, Switzerland
  • Average rainfall in December: 67mm

The wettest month (with the highest rainfall) is August (118mm).
The driest months (with the least rainfall) are January and February (50mm).

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Average rainfall days in December
Interlaken, Switzerland

Average rainfall days in December - Interlaken, Switzerland
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in December
Interlaken, Switzerland

Average snowfall in December - Interlaken, Switzerland
  • Average snowfall in December: 162mm

The month with the highest snowfall is January (211mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Interlaken, Switzerland

Average snowfall days in December - Interlaken, Switzerland
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Interlaken, Switzerland

Average daylight in December / Average sunshine in December - Interlaken, 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 4min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Interlaken, Switzerland

Average sunshine days in December - Interlaken, Switzerland
  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is October (15 days).
The month with the least sunshine days is July (5.7 days).

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Average UV index in December
Interlaken, Switzerland

Average UV index in December - Interlaken, Switzerland
  • Average UV index in December: 1

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

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Average cloud cover in December
Interlaken, Switzerland

Average cloud cover in December - Interlaken, Switzerland
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is October (Cloud cover 41).

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Average visibility in December
Interlaken, Switzerland

Average visibility in December - Interlaken, Switzerland
  • Average visibility in December: 8km

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

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Interlaken, Switzerland

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