Geneva
Switzerland
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Geneva, Switzerland

The Leman Lake, flowing through the city of Geneva, Switzerland, in a stunning aerial panorama of the cityscape and the distant mountains
The Leman Lake, flowing through the city of Geneva, Switzerland, in a stunning aerial panorama of the cityscape and the distant mountains
The first month of the winter, December, is still a cold month in Geneva, Switzerland, with average temperature varying between 0.1°C (32.2°F) and 5.3°C (41.5°F).

Temperature

In December, the average high-temperature slightly decreases, from a frosty 8.8°C (47.8°F) in November, to a wintry 5.3°C (41.5°F). In December, the average low-temperature is 0.1°C (32.2°F).

Humidity

Months with the highest humidity are January, November and December, with an average relative humidity of 81%.

Rainfall

In Geneva, in December, during 10 rainfall days, 90mm (3.5") of precipitation is typically accumulated. Throughout the year, there are 109 rainfall days, and 1006mm (39.6") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Geneva, Switzerland, in December, during 2 snowfall days, 74mm (2.9") of snow is typically accumulated. Throughout the year, there are 8.2 snowfall days, and 321mm (12.6") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8.7h of daylight.

Sunshine

December has the least sunshine of the year in Geneva, with an average of 1.6h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Geneva, Switzerland. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 1 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Geneva?

In December, in Geneva, Switzerland, the average high-temperature is 5.3°C (41.5°F), and the average low-temperature is 0.1°C (32.2°F).

What are the most humid months in Geneva?

January, November and December, with an average relative humidity of 81%, are most humid months.

What is the average humidity in December in Geneva?

In December, the average relative humidity in Geneva is 81%.

How many days does it rain in December in Geneva?

In Geneva, in December, during 10 rainfall days, 90mm (3.5") of precipitation is typically accumulated.

How much does it snow in Geneva in December?

In Geneva, Switzerland, in December, snow falls for 2 days, with typically accumulated 74mm (2.9") of snow.

What is the month with the shortest days in Geneva?

December has the shortest days of the year, with an average of 8.7h of daylight.

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

In December, the average length of the day in Geneva is 8.7h.

What is the month with the least sunshine in Geneva?

December has the least sunshine of the year in Geneva, Switzerland, with an average of 1.6h of sunshine.

How long on average sun shines in December in Geneva?

The average sunshine in December is 1.6h.

What is the month with the lowest UV index in Geneva?

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

How high is the UV index in December in Geneva?

The average daily maximum UV index in December in Geneva is 1. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.
Average temperature in December - Geneva, Switzerland
  • Average high temperature in December: 5.3°C

The warmest month (with the highest average high temperature) is July (26.5°C).
The month with the lowest average high temperature is January (4.5°C).

  • Average low temperature in December: 0.1°C

The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).

Average humidity in December - Geneva, Switzerland
  • Average humidity in December: 81%

Months with the highest relative humidity are January, November and December (81%).
The month with the lowest relative humidity is July (64%).

Average rainfall in December - Geneva, Switzerland
  • Average rainfall in December: 90mm

The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the lowest rainfall) is February (68mm).

Average rainfall days in December - Geneva, Switzerland
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is May (10.6 days).
The month with the lowest number of rainy days is July (7.6 days).

Average snowfall in December - Geneva, Switzerland
  • Average snowfall in December: 74mm

The month with the highest snowfall is January (108mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Geneva, Switzerland
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is January (2.5 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Geneva, Switzerland
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).

  • Average sunshine in December: 1.6h

The month with most sunshine is July (Average sunshine: 8.5h).
The month with least sunshine is December (Average sunshine: 1.6h).

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

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).