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 average high-temperature is a still refreshing 14.4°C (57.9°F) in December, hardly different from the 16.2°C (61.2°F) recorded in November. Throughout the month of December, the nighttime temperature in Douro dips to an average of 7.6°C (45.7°F).Humidity
In Douro, the average relative humidity in December is 79%.Rainfall
In December, in Douro, the rain falls for 6.6 days. Throughout December, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Douro, there are 78.7 rainfall days, and 139mm (5.47") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 07:35 and sunset at 17:08. On the last day of December, in Douro, sunrise is at 07:54 and sunset at 17:18 WET.
Sunshine
The average sunshine in December in Douro is 5.6h.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 reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 3 during December translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the average December temperature in Douro?
What is the average humidity in December in Douro?
How many days does it rain in December in Douro?
What is the month with the shortest days in Douro?
How many hours of daylight does Douro have in December?
What time are sunrise and sunset in December in Douro?
How many hours of sunshine does Douro have in December?
What is the month with the lowest UV index in Douro?
What is the UV index intensity in December in Douro?
Average temperature in December
Douro, Portugal
- Average high temperature in December: 14.4°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (13.4°C).
- Average low temperature in December: 7.6°C
The month with the highest average low temperature is July (15°C).
The coldest months (with the lowest average low temperature) are January and February (6.7°C).
Average pressure in December
Douro, 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 (1015.4mbar).
Average wind speed in December
Douro, Portugal
- Average wind speed in December: 10.8km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).
Average humidity in December
Douro, Portugal
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (68%).
Average rainfall in December
Douro, Portugal
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in December
Douro, Portugal
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is April (11.3 days).
The month with the least rainy days is August (1.9 days).
Average daylight in December /
Average sunshine in December
Douro, 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 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Douro, Portugal
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (16.2 days).
Average UV index in December
Douro, Portugal
- Average UV index in December: 3
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Douro, Portugal
- Average cloud cover in December: 39
The month with the most cloud cover is January (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 22).
Average visibility in December
Douro, Portugal
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
The months with the lowest visibility are July and August (8km).
Douro, Portugal
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