Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December witnesses a gentle descent in average high-temperature, descending from November's frosty 7.2°C (45°F) to a cold 2.7°C (36.9°F). Throughout December, the temperature in Unterwasser tends to fall to a consistent average low of -3.7°C (25.3°F).Humidity
In December, the average relative humidity in Unterwasser is 84%.Rainfall
The month with the most rainfall is December, when the rain falls for 6.7 days and typically aggregates up to 127mm (5") of precipitation.Snowfall
January through May, August through December are months with snowfall. In Unterwasser, during December, snow falls for 17.8 days and regularly aggregates up to 793mm (31.22") of snow. Throughout the year, there are 90.5 snowfall days, and 3420mm (134.65") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December in Unterwasser, Switzerland, sunrise is at 07:48 and sunset at 16:34. On the last day of the month, sunrise is at 08:09 and sunset at 16:42 CET.
Sunshine
December has the least sunshine of the year in Unterwasser, with an average of 5.2h of sunshine.UV index
In December, the average daily maximum UV index in Unterwasser is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Unterwasser?
What is the average humidity in December in Unterwasser?
What is the wettest month in Unterwasser?
How many days does it rain in December in Unterwasser?
How much does it snow in Unterwasser in December?
What is the month with the shortest days in Unterwasser?
How many hours of daylight does Unterwasser have in December?
What time are sunrise and sunset in December in Unterwasser?
What is the month with the least sunshine in Unterwasser?
How many hours of sunshine does Unterwasser have in December?
What is the UV index reading in December in Unterwasser?
Average temperature in December
Unterwasser, Switzerland
- Average high temperature in December: 2.7°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (1.5°C).
- Average low temperature in December: -3.7°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).
Average pressure in December
Unterwasser, Switzerland
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Unterwasser, Switzerland
- Average wind speed in December: 8km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in December
Unterwasser, Switzerland
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Unterwasser, Switzerland
- Average rainfall in December: 127mm
The wettest month (with the highest rainfall) is December (127mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in December
Unterwasser, Switzerland
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in December
Unterwasser, Switzerland
- Average snowfall in December: 793mm
The month with the highest snowfall is January (813mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in December
Unterwasser, Switzerland
- Average snowfall days in December: 17.8 days
The month with the highest number of snowfall days is January (18.4 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Unterwasser, Switzerland
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Unterwasser, Switzerland
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in December
Unterwasser, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Unterwasser, Switzerland
- Average cloud cover in December: 45
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Unterwasser, Switzerland
- Average visibility in December: 7km
The months with the highest visibility are June and August (9km).
The months with the lowest visibility are January, February and December (7km).
Unterwasser, Switzerland
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