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
With the onset of December, the average high-temperature registers at a still refreshing 15.8°C (60.4°F), subtly different from November's 17.6°C (63.7°F). A minimal decline in temperature from daytime highs is anticipated in Alferce throughout the December nights, averaging a cool 10.9°C (51.6°F).Humidity
In December, the average relative humidity in Alferce is 76%.Rainfall
In Alferce, in December, it is raining for 7.8 days, with typically 20mm (0.79") of accumulated precipitation. Throughout the year, in Alferce, there are 85.4 rainfall days, and 164mm (6.46") of precipitation is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:29 and sunset at 17:16. On the last day of December, in Alferce, sunrise is at 07:47 and sunset at 17:26 WET.
Sunshine
In Alferce, the average sunshine in December is 6.3h.UV index
In December, the average daily maximum UV index in Alferce, Portugal, is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily UV index of 4 turns into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Alferce?
What is the average humidity in December in Alferce?
How much does it rain in Alferce in December?
What is the month with the shortest days in Alferce?
What is the average length of the day in December in Alferce?
When is the sunrise / sunset in December in Alferce?
How long on average sun shines in December in Alferce?
What is the UV index reading in December in Alferce?
Average temperature in December
Alferce, Portugal
- Average high temperature in December: 15.8°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in December: 10.9°C
The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (9.2°C).
Average pressure in December
Alferce, 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 (1015.6mbar).
Average wind speed in December
Alferce, Portugal
- Average wind speed in December: 14.5km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).
Average humidity in December
Alferce, Portugal
- Average humidity in December: 76%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Alferce, Portugal
- Average rainfall in December: 20mm
The wettest month (with the highest rainfall) is November (25mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in December
Alferce, Portugal
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is August (1.5 days).
Average daylight in December /
Average sunshine in December
Alferce, 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 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in December
Alferce, Portugal
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in December
Alferce, Portugal
- Average UV index in December: 4
The months with the highest UV index are May, June, July, August and September (UV index 6).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Alferce, Portugal
- Average cloud cover in December: 30
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Alferce, 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).
