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
Alfornelos marks the onset of December with an average high-temperature of a moderate 15.5°C (59.9°F), subtly divergent from November's 17.4°C (63.3°F). Alfornelos, during December nights, records a temperature marginally cooler than the daytime average, at a fresh 11.4°C (52.5°F).Humidity
In Alfornelos, the average relative humidity in December is 75%.Rainfall
In Alfornelos, in December, during 11 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, in Alfornelos, there are 112.7 rainfall days, and 389mm (15.31") of precipitation is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Alfornelos.On the first day of December in Alfornelos, sunrise is at 07:36 and sunset at 17:15. On the last day of the month, sunrise is at 07:54 and sunset at 17:25 WET.
Sunshine
In December, the average sunshine is 5.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 3 in December translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are December temperatures in Alfornelos?
What is the average humidity in December in Alfornelos?
How much does it rain in Alfornelos in December?
What is the month with the shortest days in Alfornelos?
What is the average length of the day in December in Alfornelos?
When is the sunrise / sunset in December in Alfornelos?
How long on average sun shines in December in Alfornelos?
When is the lowest UV index in Alfornelos?
How high is the UV index in December in Alfornelos?
Average temperature in December
Alfornelos, Portugal
- Average high temperature in December: 15.5°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in December: 11.4°C
The months with the highest average low temperature are July and August (18.1°C).
The coldest month (with the lowest average low temperature) is February (10.3°C).
Average pressure in December
Alfornelos, 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 (1015.7mbar).
Average wind speed in December
Alfornelos, Portugal
- Average wind speed in December: 16km/h
The windiest month (with the highest average wind speed) is February (17.8km/h).
The calmest month (with the lowest average wind speed) is October (14.1km/h).
Average humidity in December
Alfornelos, Portugal
- Average humidity in December: 75%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are May and August (70%).
Average rainfall in December
Alfornelos, Portugal
- Average rainfall in December: 52mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in December
Alfornelos, Portugal
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is November (14.4 days).
The month with the least rainy days is August (2.6 days).
Average daylight in December /
Average sunshine in December
Alfornelos, Portugal
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Alfornelos, Portugal
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is November (13.3 days).
Average UV index in December
Alfornelos, Portugal
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Alfornelos, Portugal
- Average cloud cover in December: 35
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Alfornelos, Portugal
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Alfornelos, Portugal
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