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
Deilão's average high-temperature marks a frosty 8.9°C (48°F) with the advent of December, closely mirroring that of the preceding month. An average low-temperature of 2°C (35.6°F) is recorded in the month of December.Humidity
In December, the average relative humidity is 84%.Rainfall
In Deilão, in December, during 12.7 rainfall days, 70mm (2.76") of precipitation is typically accumulated. Throughout the year, in Deilão, there are 141.7 rainfall days, and 532mm (20.94") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Deilão, in December, snow falls for 1 days, with typically accumulated 13mm (0.51") of snow. In Deilão, during the entire year, snow falls for 6.4 days and aggregates up to 51mm (2.01") of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:34 and sunset at 16:56. On the last day of December, in Deilão, sunrise is at 07:53 and sunset at 17:05 WET.
Sunshine
In Deilão, the average sunshine in December is 5.1h.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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in December in Deilão?
What is the average humidity in December in Deilão?
How many days does it rain in December in Deilão?
How many days does it snow in December in Deilão?
What is the month with the shortest days in Deilão?
What is the average length of the day in December in Deilão?
When are sunrise and sunset in December in Deilão?
How long on average sun shines in December in Deilão?
What are the months with the lowest UV index in Deilão?
What is the UV index reading in December in Deilão?
Average temperature in December
Deilão, Portugal
- Average high temperature in December: 8.9°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 2°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in December
Deilão, Portugal
- 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 (1015.4mbar).
Average wind speed in December
Deilão, Portugal
- Average wind speed in December: 8.8km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).
Average humidity in December
Deilão, Portugal
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Deilão, Portugal
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in December
Deilão, Portugal
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is April (17.6 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in December
Deilão, Portugal
- Average snowfall in December: 13mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Deilão, Portugal
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is January (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Deilão, Portugal
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Deilão, Portugal
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in December
Deilão, Portugal
- 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
Deilão, Portugal
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Deilão, Portugal
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
Deilão, Portugal
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