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
December
Weather in December
Temperature
The onset of December brings with it an average high-temperature of a still frosty 7.2°C (45°F), showing a negligible variation from the month before. Rello's temperature lowers to a mean of 0.5°C (32.9°F) during the nights in December.Humidity
The average relative humidity in December is 79%.Rainfall
December is the month with the least rainfall in Rello. Rain falls for 6.9 days and accumulates 16mm (0.63") of precipitation.Snowfall
January through May, November and December are months with snowfall. In Rello, in December, during 2.5 snowfall days, 28mm (1.1") of snow is typically accumulated. In Rello, during the entire year, snow falls for 26 days and aggregates up to 306mm (12.05") of snow.Daylight
December has the shortest days of the year in Rello, with an average of 9h and 18min of daylight.On the first day of December in Rello, Spain, sunrise is at 08:17 and sunset at 17:42. On the last day of the month, sunrise is at 08:36 and sunset at 17:51 CET.
Sunshine
The month with the least sunshine in Rello is December, with an average of 6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Rello?
What is the average humidity in December in Rello?
What is the driest month in Rello?
How much does it rain in Rello in December?
How much does it snow in Rello in December?
What is the month with the shortest days in Rello?
How many hours of daylight does Rello have in December?
When is the sunrise / sunset in December in Rello?
What is the month with the least sunshine in Rello?
How long on average sun shines in December in Rello?
What is the month with the lowest UV index in Rello?
What is the UV index reading in December in Rello?
Average temperature in December
Rello, Spain
- Average high temperature in December: 7.2°C
The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in December: 0.5°C
The month with the highest average low temperature is August (13.5°C).
The coldest months (with the lowest average low temperature) are January and February (-0.5°C).
Average pressure in December
Rello, Spain
- Average pressure in December: 1022.9mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in December
Rello, Spain
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest months (with the lowest average wind speed) are July, August and September (9.2km/h).
Average humidity in December
Rello, Spain
- Average humidity in December: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (55%).
Average rainfall in December
Rello, Spain
- Average rainfall in December: 16mm
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is December (16mm).
Average rainfall days in December
Rello, Spain
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Rello, Spain
- Average snowfall in December: 28mm
The month with the highest snowfall is January (78mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Rello, Spain
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rello, Spain
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Rello, Spain
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Rello, Spain
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rello, Spain
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Rello, Spain
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
