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
The advent of December presents an average high-temperature of a cool 11.6°C (52.9°F), maintaining a close correlation with the preceding month. Alcafache's temperature drops to an average low of 4.2°C (39.6°F) during the nights of December.Humidity
In Alcafache, the average relative humidity in December is 83%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 92mm (3.62") of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:36 and sunset at 17:05. On the last day of December, sunrise is at 07:54 and sunset at 17:14 WET.
Sunshine
In Alcafache, the average sunshine in December is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Alcafache?
What is the average humidity in December in Alcafache?
What is the rainiest month in Alcafache?
How many days does it rain in December in Alcafache?
When it does not snow in Alcafache?
Does it snow in Alcafache in December?
What is the month with the shortest days in Alcafache?
How many hours of daylight does Alcafache have in December?
What time are sunrise and sunset in December in Alcafache?
How many hours of sunshine does Alcafache have in December?
What are the months with the lowest UV index in Alcafache?
How high is the UV index in December in Alcafache?
Average temperature in December
Alcafache, Portugal
- Average high temperature in December: 11.6°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (10.7°C).
- Average low temperature in December: 4.2°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in December
Alcafache, 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 (1015.2mbar).
Average wind speed in December
Alcafache, Portugal
- Average wind speed in December: 8.6km/h
The windiest month (with the highest average wind speed) is March (9.1km/h).
The calmest month (with the lowest average wind speed) is September (7.1km/h).
Average humidity in December
Alcafache, Portugal
- Average humidity in December: 83%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (57%).
Average rainfall in December
Alcafache, Portugal
- Average rainfall in December: 92mm
The wettest month (with the highest rainfall) is December (92mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in December
Alcafache, Portugal
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in December
Alcafache, Portugal
- Average snowfall in December: 0mm
The months with the highest snowfall are January and February (3mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Alcafache, Portugal
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.4 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
Alcafache, 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 18min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Alcafache, Portugal
- Average sunshine days in December: 18.3 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is April (13 days).
Average UV index in December
Alcafache, Portugal
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Alcafache, Portugal
- Average cloud cover in December: 44
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in December
Alcafache, Portugal
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January and November (7km).
Alcafache, Portugal
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