December weather forecastArouca, Portugal
December
Weather in December
The first month of the winter, December, is still a mild month in Arouca, Portugal, with an average temperature ranging between max 13.6°C (56.5°F) and min 7.3°C (45.1°F).Temperature
The onset of December marks an average high-temperature of a still moderate 13.6°C (56.5°F), hardly differing from November's 15.5°C (59.9°F). Arouca in December anticipates an average nighttime temperature of 7.3°C (45.1°F).Humidity
In December, the average relative humidity is 80%.Rainfall
In Arouca, Portugal, during December, the rain falls for 13.4 days and regularly aggregates up to 115mm (4.53") of precipitation. In Arouca, during the entire year, the rain falls for 135.4 days and collects up to 778mm (30.63") of precipitation.Daylight
The month with the shortest days in Arouca is December, with an average of 9h and 18min of daylight.On the first day of December in Arouca, sunrise is at 07:38 and sunset at 17:05. On the last day of the month, sunrise is at 07:57 and sunset at 17:14 WET.
Sunshine
The average sunshine in December in Arouca, Portugal, is 5.6h.UV index
The months with the lowest UV index in Arouca are January through March, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Arouca, Portugal
- Average high temperature in December: 13.6°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (12.6°C).
- Average low temperature in December: 7.3°C
The months with the highest average low temperature are July and August (14.8°C).
The coldest month (with the lowest average low temperature) is January (6°C).
Average pressure in December
Arouca, 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 (1015.3mbar).
Average wind speed in December
Arouca, Portugal
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is February (9.7km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in December
Arouca, Portugal
- Average humidity in December: 80%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (66%).
Average rainfall in December
Arouca, Portugal
- Average rainfall in December: 115mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in December
Arouca, Portugal
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is November (15.7 days).
The month with the least rainy days is August (4.3 days).
Average daylight in December /
Average sunshine in December
Arouca, Portugal
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Arouca, Portugal
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is November (11.6 days).
Average UV index in December
Arouca, Portugal
- Average UV index in December: 3
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in December
Arouca, Portugal
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Arouca, Portugal
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
