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
The arrival of December brings an average high-temperature of a still refreshing 14.5°C (58.1°F), closely following the temperature pattern of November. In December, a low-temperature average of 10.1°C (50.2°F) is characteristic of Alfarelos, marking a minor shift from daytime temperatures.Humidity
The average relative humidity in December in Alfarelos, Portugal, is 76%.Rainfall
In December, the rain falls for 12.1 days. Throughout December, 74mm (2.91") of precipitation is accumulated. Throughout the year, there are 130.4 rainfall days, and 585mm (23.03") of precipitation is accumulated.Daylight
December has the shortest days of the year in Alfarelos, with an average of 9h and 24min of daylight.On the first day of December in Alfarelos, sunrise is at 07:38 and sunset at 17:09. On the last day of the month, sunrise is at 07:56 and sunset at 17:18 WET.
Sunshine
In December, the average sunshine is 5.7h.UV index
In Alfarelos, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 4 suggests this advice:
Take necessary precautions - Defending against sun damage is advocated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the average December temperature in Alfarelos?
What is the average humidity in December in Alfarelos?
How many days does it rain in December in Alfarelos?
What is the month with the shortest days in Alfarelos?
How many hours of daylight does Alfarelos have in December?
When is the sunrise / sunset in December in Alfarelos?
How long on average sun shines in December in Alfarelos?
How high is the UV index in December in Alfarelos?
Average temperature in December
Alfarelos, Portugal
- Average high temperature in December: 14.5°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (13.7°C).
- Average low temperature in December: 10.1°C
The months with the highest average low temperature are July and August (16.8°C).
The coldest month (with the lowest average low temperature) is February (9.3°C).
Average pressure in December
Alfarelos, Portugal
- Average pressure in December: 1022.5mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in December
Alfarelos, Portugal
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is September (12.8km/h).
Average humidity in December
Alfarelos, Portugal
- Average humidity in December: 76%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are September and October (74%).
Average rainfall in December
Alfarelos, Portugal
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is November (97mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in December
Alfarelos, Portugal
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (4.5 days).
Average daylight in December /
Average sunshine in December
Alfarelos, 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 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Alfarelos, Portugal
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is November (11.9 days).
Average UV index in December
Alfarelos, Portugal
- Average UV index in December: 4
The months with the highest UV index are May, June, July, August and September (UV index 5).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Alfarelos, Portugal
- Average cloud cover in December: 38
The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are August and September (Cloud cover 20).
Average visibility in December
Alfarelos, Portugal
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).
Alfarelos, Portugal
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