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
San Sebastián de los Reyes's transition from November to December introduces an average high-temperature of a cool 10.4°C (50.7°F), marking an insignificant variation from the 13.1°C (55.6°F). The month of December records an average low-temperature of 2.8°C (37°F).Humidity
The average relative humidity in December in San Sebastián de los Reyes is 72%.Rainfall
In San Sebastián de los Reyes, in December, it is raining for 8.3 days, with typically 28mm (1.1") of accumulated precipitation. In San Sebastián de los Reyes, during the entire year, the rain falls for 95.7 days and collects up to 244mm (9.61") of precipitation.Snowfall
January through March, November and December are months with snowfall in San Sebastián de los Reyes. In San Sebastián de los Reyes, in December, snow falls for 0.3 days, with typically accumulated 1mm (0.04") of snow. Throughout the year, there are 3.5 snowfall days, and 38mm (1.5") of snow is accumulated.Daylight
December has the shortest days of the year in San Sebastián de los Reyes, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 08:19 and sunset at 17:48. On the last day of December, in San Sebastián de los Reyes, sunrise is at 08:37 and sunset at 17:57 CET.
Sunshine
With an average of 6.3h of sunshine, December has the least sunshine of the year in San Sebastián de los Reyes, Spain.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in San Sebastián de los Reyes?
What is the average humidity in December in San Sebastián de los Reyes?
How much does it rain in San Sebastián de los Reyes in December?
How much does it snow in San Sebastián de los Reyes in December?
What is the month with the shortest days in San Sebastián de los Reyes?
What is the average length of the day in December in San Sebastián de los Reyes?
When are sunrise and sunset in December in San Sebastián de los Reyes?
What is the month with the least sunshine in San Sebastián de los Reyes?
How long on average sun shines in December in San Sebastián de los Reyes?
When is the lowest UV index in San Sebastián de los Reyes?
How high is the UV index in December in San Sebastián de los Reyes?
Average temperature in December
San Sebastián de los Reyes, Spain
- Average high temperature in December: 10.4°C
The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is January (9.7°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is July (19.8°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in December
San Sebastián de los Reyes, Spain
- Average pressure in December: 1023.6mbar
The month with the highest atmospheric pressure is December (1023.6mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
San Sebastián de los Reyes, Spain
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest months (with the lowest average wind speed) are October and December (9.1km/h).
Average humidity in December
San Sebastián de los Reyes, Spain
- Average humidity in December: 72%
The month with the highest relative humidity is January (74%).
The months with the lowest relative humidity are July and August (34%).
Average rainfall in December
San Sebastián de los Reyes, Spain
- Average rainfall in December: 28mm
The wettest month (with the highest rainfall) is April (39mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in December
San Sebastián de los Reyes, Spain
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is April (13 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in December
San Sebastián de los Reyes, Spain
- Average snowfall in December: 1mm
The months with the highest snowfall are February and March (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
San Sebastián de los Reyes, Spain
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
San Sebastián de los Reyes, Spain
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
San Sebastián de los Reyes, Spain
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is April (14.8 days).
Average UV index in December
San Sebastián de los Reyes, Spain
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
San Sebastián de los Reyes, Spain
- Average cloud cover in December: 31
The month with the most cloud cover is January (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in December
San Sebastián de los Reyes, Spain
- Average visibility in December: 10km
The months with the highest visibility are February, March, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, April and November (9km).
