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
December's beginning signals an average high-temperature of a still refreshing 15.5°C (59.9°F), barely different from November's 18°C (64.4°F). During December, Aljustrel experiences an average low-temperature of 7.1°C (44.8°F) at night.Humidity
In December, the average relative humidity in Aljustrel is 77%.Rainfall
In Aljustrel, in December, it is raining for 5.5 days, with typically 11mm (0.43") of accumulated precipitation. In Aljustrel, during the entire year, the rain falls for 65.2 days and collects up to 110mm (4.33") of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December in Aljustrel, Portugal, sunrise is at 07:29 and sunset at 17:13. On the last day of the month, sunrise is at 07:48 and sunset at 17:23 WET.
Sunshine
The average sunshine in December in Aljustrel is 6h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Aljustrel?
What is the average humidity in December in Aljustrel?
How many days does it rain in December in Aljustrel?
What is the month with the shortest days in Aljustrel?
What is the average length of the day in December in Aljustrel?
When is the sunrise / sunset in December in Aljustrel?
How many hours of sunshine does Aljustrel have in December?
What are the months with the lowest UV index in Aljustrel?
What is the UV index reading in December in Aljustrel?
Average temperature in December
Aljustrel, Portugal
- Average high temperature in December: 15.5°C
The warmest month (with the highest average high temperature) is August (34.7°C).
The month with the lowest average high temperature is January (14.4°C).
- Average low temperature in December: 7.1°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in December
Aljustrel, 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
Aljustrel, Portugal
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is July (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.7km/h).
Average humidity in December
Aljustrel, Portugal
- Average humidity in December: 77%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (47%).
Average rainfall in December
Aljustrel, Portugal
- Average rainfall in December: 11mm
The wettest month (with the highest rainfall) is April (20mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in December
Aljustrel, Portugal
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is April (9.7 days).
The month with the least rainy days is August (1 days).
Average daylight in December /
Average sunshine in December
Aljustrel, Portugal
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 0min
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: 5h and 24min).
Average sunshine days in December
Aljustrel, Portugal
- Average sunshine days in December: 23.7 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is April (18.8 days).
Average UV index in December
Aljustrel, Portugal
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Aljustrel, Portugal
- Average cloud cover in December: 34
The months with the most cloud cover are January and April (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in December
Aljustrel, Portugal
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
