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
December
Weather in December
Temperature
The onset of December brings with it an average high-temperature of a moderate 14.4°C (57.9°F), showing a negligible variation from the month before. An average low-temperature of 6.9°C (44.4°F) marks the nights throughout December.Humidity
The average relative humidity in December in Alcanena is 79%.Rainfall
In Alcanena, Portugal, in December, during 10.2 rainfall days, 52mm (2.05") of precipitation is typically accumulated. In Alcanena, during the entire year, the rain falls for 113 days and collects up to 423mm (16.65") of precipitation.Daylight
With an average of 9h and 24min 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 17:11. On the last day of December, in Alcanena, sunrise is at 07:54 and sunset at 17:21 WET.
Sunshine
In December, the average sunshine is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Alcanena. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Alcanena in December?
What is the average humidity in December in Alcanena?
How much does it rain in Alcanena in December?
What is the month with the shortest days in Alcanena?
What is the average length of the day in December in Alcanena?
When is the sunrise / sunset in December in Alcanena?
How many hours of sunshine does Alcanena have in December?
What is the month with the lowest UV index in Alcanena?
What is the UV index reading in December in Alcanena?
Average temperature in December
Alcanena, Portugal
- Average high temperature in December: 14.4°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (13.7°C).
- Average low temperature in December: 6.9°C
The month with the highest average low temperature is July (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.2°C).
Average pressure in December
Alcanena, Portugal
- Average pressure in December: 1022.7mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in December
Alcanena, Portugal
- Average wind speed in December: 10.9km/h
The windiest month (with the highest average wind speed) is July (13.3km/h).
The calmest month (with the lowest average wind speed) is October (10.5km/h).
Average humidity in December
Alcanena, Portugal
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Alcanena, Portugal
- Average rainfall in December: 52mm
The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (4mm).
Average rainfall days in December
Alcanena, Portugal
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is August (3 days).
Average daylight in December /
Average sunshine in December
Alcanena, Portugal
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Alcanena, Portugal
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is April (14 days).
Average UV index in December
Alcanena, Portugal
- Average UV index in December: 3
The months with the highest UV index are June, July and 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
Alcanena, Portugal
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Alcanena, Portugal
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
