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
With the onset of December, Alentejo's average high-temperature clocks in at a still cool 10.8°C (51.4°F), showing a minor fluctuation from the previous month. Alentejo's temperature lowers to a mean of 3.4°C (38.1°F) during the nights in December.Humidity
In Alentejo, the average relative humidity in December is 82%.Rainfall
December is the month with the most rainfall. Rain falls for 10.5 days and accumulates 83mm (3.27") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Alentejo, during December, snow falls for 2.4 days and regularly aggregates up to 43mm (1.69") of snow. In Alentejo, Portugal, during the entire year, snow falls for 15.4 days and aggregates up to 244mm (9.61") of snow.Daylight
December has the shortest days of the year in Alentejo, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 07:35 and sunset at 17:05. On the last day of December, in Alentejo, sunrise is at 07:53 and sunset at 17:15 WET.
Sunshine
The average sunshine in December is 5.3h.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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What are December temperatures in Alentejo?
What is the average humidity in December in Alentejo?
What is the rainiest month in Alentejo?
How much does it rain in Alentejo in December?
How many days does it snow in December in Alentejo?
What is the month with the shortest days in Alentejo?
What is the average length of the day in December in Alentejo?
When are sunrise and sunset in December in Alentejo?
How long on average sun shines in December in Alentejo?
When is the lowest UV index in Alentejo?
How high is the UV index in December in Alentejo?
Average temperature in December
Alentejo, Portugal
- Average high temperature in December: 10.8°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in December: 3.4°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in December
Alentejo, Portugal
- Average pressure in December: 1023mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in December
Alentejo, Portugal
- Average wind speed in December: 10.2km/h
The windiest month (with the highest average wind speed) is February (11.5km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in December
Alentejo, Portugal
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (51%).
Average rainfall in December
Alentejo, Portugal
- Average rainfall in December: 83mm
The wettest month (with the highest rainfall) is December (83mm).
The driest months (with the least rainfall) are July and August (7mm).
Average rainfall days in December
Alentejo, Portugal
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in December
Alentejo, Portugal
- Average snowfall in December: 43mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Alentejo, Portugal
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Alentejo, 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 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Alentejo, Portugal
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in December
Alentejo, 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
Alentejo, Portugal
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Alentejo, Portugal
- Average visibility in December: 8km
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is January (7km).
Alentejo, Portugal
Weather forecast for your location
2. Allow the app to use your location
