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's arrival aligns with a minor decrease in average high-temperatures, from November's icy 4.3°C (39.7°F) to a subzero cold -0.2°C (31.6°F). Throughout the month of December, Castiel witnesses an average low-temperature of -7.7°C (18.1°F).Humidity
In Castiel, the average relative humidity in December is 84%.Rainfall
In Castiel, during December, the rain falls for 13 days and regularly aggregates up to 90mm (3.54") of precipitation. In Castiel, during the entire year, the rain falls for 211.5 days and collects up to 1072mm (42.2") of precipitation.Snowfall
Months with snowfall in Castiel are January through May, October through December. In Castiel, in December, snow falls for 10.4 days, with typically accumulated 203mm (7.99") of snow. Throughout the year, in Castiel, there are 55.6 snowfall days, and 1071mm (42.17") of snow is accumulated.Daylight
December has the shortest days of the year in Castiel, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 07:46 and sunset at 16:35. On the last day of December, in Castiel, sunrise is at 08:06 and sunset at 16:42 CET.
Sunshine
In December, the average sunshine is 5.4h.UV index
In Castiel, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Castiel?
What is the average humidity in December in Castiel?
How many days does it rain in December in Castiel?
How many days does it snow in December in Castiel?
What is the month with the shortest days in Castiel?
How many hours of daylight does Castiel have in December?
When are sunrise and sunset in December in Castiel?
How many hours of sunshine does Castiel have in December?
What is the UV index reading in December in Castiel?
Average temperature in December
Castiel, Switzerland
- Average high temperature in December: -0.2°C
The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -7.7°C
The month with the highest average low temperature is August (7.3°C).
The coldest month (with the lowest average low temperature) is February (-10°C).
Average pressure in December
Castiel, 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 (1015.5mbar).
Average wind speed in December
Castiel, Switzerland
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is November (8.2km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in December
Castiel, Switzerland
- Average humidity in December: 84%
The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Castiel, Switzerland
- Average rainfall in December: 90mm
The wettest month (with the highest rainfall) is August (133mm).
The driest month (with the least rainfall) is February (61mm).
Average rainfall days in December
Castiel, Switzerland
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is January (12.3 days).
Average snowfall in December
Castiel, Switzerland
- Average snowfall in December: 203mm
The month with the highest snowfall is January (320mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Castiel, Switzerland
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Castiel, 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: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Castiel, Switzerland
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (3.8 days).
Average UV index in December
Castiel, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in December
Castiel, Switzerland
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 37).
Average visibility in December
Castiel, Switzerland
- Average visibility in December: 7km
The months with the highest visibility are May, June, July, August, October and November (8km).
The month with the lowest visibility is January (6km).
Castiel, Switzerland
Weather forecast for your location
2. Allow the app to use your location