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 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
December's weather displays an average high-temperature of a mild 14.4°C (57.9°F), slightly varied from November's 16.2°C (61.2°F). The average low-temperature, in December, is a chilly 7.6°C (45.7°F).Humidity
The average relative humidity in December in Avelar is 79%.Rainfall
In Avelar, in December, it is raining for 6.6 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, in Avelar, there are 79 rainfall days, and 141mm (5.55") of precipitation is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Avelar.On the first day of the month, sunrise is at 07:36 and sunset at 17:09. On the last day of December, sunrise is at 07:54 and sunset at 17:18 WET.
Sunshine
In December, the average sunshine in Avelar is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Avelar. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the average December temperature in Avelar?
What is the average humidity in December in Avelar?
How many days does it rain in December in Avelar?
What is the month with the shortest days in Avelar?
What is the average length of the day in December in Avelar?
What time are sunrise and sunset in December in Avelar?
How many hours of sunshine does Avelar have in December?
When is the lowest UV index in Avelar?
How high is the UV index in December in Avelar?
Average temperature in December
Avelar, Portugal
- Average high temperature in December: 14.4°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (13.4°C).
- Average low temperature in December: 7.6°C
The month with the highest average low temperature is July (15°C).
The coldest months (with the lowest average low temperature) are January and February (6.7°C).
Average pressure in December
Avelar, Portugal
- Average pressure in December: 1022.6mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in December
Avelar, Portugal
- Average wind speed in December: 10.8km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).
Average humidity in December
Avelar, Portugal
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (68%).
Average rainfall in December
Avelar, Portugal
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in December
Avelar, Portugal
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is April (11.3 days).
The month with the least rainy days is August (1.9 days).
Average daylight in December /
Average sunshine in December
Avelar, Portugal
- 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 24min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Avelar, Portugal
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (16.2 days).
Average UV index in December
Avelar, Portugal
- Average UV index in December: 3
The month with the highest UV index is 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
Avelar, Portugal
- Average cloud cover in December: 39
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Avelar, Portugal
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
The months with the lowest visibility are July and August (8km).
Avelar, Portugal
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