December weather forecastOleiros, Spain
December
Weather in December
December, the first month of the winter in Oleiros, is still a cool month, with an average temperature fluctuating between 12.8°C (55°F) and 9.4°C (48.9°F).Temperature
With the onset of December, Oleiros's average high-temperature clocks in at a cool 12.8°C (55°F), showing a minor fluctuation from the previous month. Night temperatures during December in Oleiros, Spain, experience a slight downturn, averaging a frosty 9.4°C (48.9°F).Humidity
In Oleiros, Spain, the average relative humidity in December is 81%.Rainfall
In Oleiros, in December, it is raining for 17.7 days, with typically 87mm (3.43") of accumulated precipitation. Throughout the year, there are 182.5 rainfall days, and 779mm (30.67") of precipitation is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December in Oleiros, sunrise is at 08:46 and sunset at 17:58. On the last day of the month, sunrise is at 09:05 and sunset at 18:07 CET.
Sunshine
The months with the least sunshine are January and December, with an average of 4.8h of sunshine.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 3 in December suggests the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oleiros, Spain
- Average high temperature in December: 12.8°C
The warmest month (with the highest average high temperature) is August (21.4°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in December: 9.4°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (8°C).
Average pressure in December
Oleiros, Spain
- Average pressure in December: 1021.3mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Oleiros, Spain
- Average wind speed in December: 19.2km/h
The windiest month (with the highest average wind speed) is February (20.9km/h).
The calmest month (with the lowest average wind speed) is June (14.9km/h).
Average humidity in December
Oleiros, Spain
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are February, March, May, September and October (80%).
Average rainfall in December
Oleiros, Spain
- Average rainfall in December: 87mm
The wettest month (with the highest rainfall) is November (129mm).
The driest month (with the least rainfall) is July (21mm).
Average rainfall days in December
Oleiros, Spain
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is January (19.8 days).
The months with the least rainy days are July and August (10.8 days).
Average daylight in December /
Average sunshine in December
Oleiros, Spain
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Oleiros, Spain
- Average sunshine days in December: 10.8 days
The months with the most sunshine days are July and August (16.1 days).
The month with the least sunshine days is November (8 days).
Average UV index in December
Oleiros, Spain
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in December
Oleiros, Spain
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Oleiros, Spain
- Average visibility in December: 10km
The months with the highest visibility are February, March, June, September, October and December (10km).
The months with the lowest visibility are January, April, May, July, August and November (9km).





