December weather forecast
Basel, Switzerland

December in Basel takes a drastic turn as winter hits in full swing, with average high temperatures reaching a mere 5.2°C (41.4°F). Frequent snowfall, averaging 85mm (3.35"), turns the city into a winter wonderland, painting a beautiful white over Basel. Daylight hours reduce further, enhancing the sense of the winter season. This month also signals an increase in relative humidity, adding a chilly edge to the winter air.

Temperature

Basel, Switzerland, experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a frosty 8.7°C (47.7°F) in November to a cold 5.2°C (41.4°F). Basel observes an average low-temperature of 0.1°C (32.2°F) during December nights.

Humidity

The months with the highest humidity in Basel are November and December, with an average relative humidity of 82%.

Rainfall

In Basel, in December, it is raining for 10.4 days, with typically 66mm (2.6") of accumulated precipitation. In Basel, during the entire year, the rain falls for 120.4 days and collects up to 843mm (33.19") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Basel, in December, during 2.6 snowfall days, 85mm (3.35") of snow is typically accumulated. Throughout the year, there are 11.1 snowfall days, and 369mm (14.53") of snow is accumulated.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year in Basel.
On the first day of the month, sunrise is at 07:57 and sunset at 16:40. On the last day of December, in Basel, sunrise is at 08:17 and sunset at 16:48 CET.

Sunshine

December has the least sunshine of the year in Basel, with an average of 1.7h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.