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 reports an average high-temperature of a mild 15.4°C (59.7°F), slightly varied from November's 17°C (62.6°F). Aldeia Galega da Merceana's December nights witness minimal differential from the daytime temperatures, with averages of 10.4°C (50.7°F).Humidity
The average relative humidity in December in Aldeia Galega da Merceana is 77%.Rainfall
In December, in Aldeia Galega da Merceana, Portugal, the rain falls for 11.1 days. Throughout December, 53mm (2.09") of precipitation is accumulated. Throughout the year, there are 118.8 rainfall days, and 406mm (15.98") of precipitation is accumulated.Daylight
December has the shortest days of the year in Aldeia Galega da Merceana, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 07:36 and sunset at 17:14. On the last day of December, in Aldeia Galega da Merceana, sunrise is at 07:55 and sunset at 17:23 WET.
Sunshine
The average sunshine in December in Aldeia Galega da Merceana is 5.8h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in December interprets into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Aldeia Galega da Merceana in December?
What is the average humidity in December in Aldeia Galega da Merceana?
How much does it rain in Aldeia Galega da Merceana in December?
What is the month with the shortest days in Aldeia Galega da Merceana?
What is the average length of the day in December in Aldeia Galega da Merceana?
When are sunrise and sunset in December in Aldeia Galega da Merceana?
How many hours of sunshine does Aldeia Galega da Merceana have in December?
What are the months with the lowest UV index in Aldeia Galega da Merceana?
How high is the UV index in December in Aldeia Galega da Merceana?
Average temperature in December
Aldeia Galega da Merceana, Portugal
- Average high temperature in December: 15.4°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (14.3°C).
- Average low temperature in December: 10.4°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.5°C).
Average pressure in December
Aldeia Galega da Merceana, 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 (1015.6mbar).
Average wind speed in December
Aldeia Galega da Merceana, Portugal
- Average wind speed in December: 15.8km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is October (14km/h).
Average humidity in December
Aldeia Galega da Merceana, Portugal
- Average humidity in December: 77%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are September and October (72%).
Average rainfall in December
Aldeia Galega da Merceana, Portugal
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is November (74mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in December
Aldeia Galega da Merceana, Portugal
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is November (14.8 days).
The month with the least rainy days is August (3.1 days).
Average daylight in December /
Average sunshine in December
Aldeia Galega da Merceana, Portugal
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Aldeia Galega da Merceana, Portugal
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is July (26.5 days).
The month with the least sunshine days is November (12.8 days).
Average UV index in December
Aldeia Galega da Merceana, Portugal
- Average UV index in December: 4
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, March, April, November and December (UV index 4).
Average cloud cover in December
Aldeia Galega da Merceana, Portugal
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Aldeia Galega da Merceana, 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).
