December weather forecastCastellolí, Spain
December
Weather in December
December, the first month of the winter in Castellolí, is still a cool month, with an average temperature varying between 11.8°C (53.2°F) and 3.5°C (38.3°F).Temperature
December signifies a minor drop in average high-temperature, transitioning from a moderate 14.8°C (58.6°F) in November to a cool 11.8°C (53.2°F). Throughout December, Castellolí encounters an average temperature drop to a cold 3.5°C (38.3°F).Humidity
April, October and December, with an average relative humidity of 72%, are the most humid months.Rainfall
In Castellolí, during December, the rain falls for 5.7 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, in Castellolí, there are 133.1 rainfall days, and 473mm (18.62") of precipitation is accumulated.Snowfall
April through December are months without snowfall in Castellolí.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 08:00 and sunset at 17:23. On the last day of the month, sunrise is at 08:19 and sunset at 17:33 CET.
Sunshine
In Castellolí, the average sunshine in December is 7.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 in December translates into these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Around midday, solar radiation is most harmful; hence, exposure should be limited. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castellolí, Spain
- Average high temperature in December: 11.8°C
The warmest month (with the highest average high temperature) is July (29.2°C).
The month with the lowest average high temperature is January (10.9°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (18.2°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in December
Castellolí, Spain
- Average pressure in December: 1020.9mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1014.8mbar).
Average wind speed in December
Castellolí, Spain
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in December
Castellolí, Spain
- Average humidity in December: 72%
The months with the highest relative humidity are April, October and December (72%).
The month with the lowest relative humidity is July (62%).
Average rainfall in December
Castellolí, Spain
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is October (64mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in December
Castellolí, Spain
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is December (5.7 days).
Average snowfall in December
Castellolí, Spain
- Average snowfall in December: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Castellolí, Spain
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Castellolí, Spain
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 54min).
Average sunshine days in December
Castellolí, Spain
- Average sunshine days in December: 23.6 days
The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is September (12 days).
Average UV index in December
Castellolí, Spain
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Castellolí, Spain
- Average cloud cover in December: 21
The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in December
Castellolí, Spain
- Average visibility in December: 10km
The months with the highest visibility are January, February, May, June, July, August, November and December (10km).
The months with the lowest visibility are March, April, September and October (9km).





