December weather forecastDouro, Portugal
December
Weather in December
December, the first month of the winter in Douro, is also a moderate month, with temperature in the range of an average high of 57.9°F and an average low of 45.7°F.Temperature
December welcomes an average high-temperature of a moderate 57.9°F, not much different from the preceding month. Douro, in December, witnesses an average low-temperature of 45.7°F.Humidity
In Douro, the average relative humidity in December is 79%.Rainfall
In Douro, Portugal, during December, the rain falls for 6.6 days and regularly aggregates up to 0.67" of precipitation. Throughout the year, there are 78.7 rainfall days, and 5.47" of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 07:35 and sunset at 17:08. On the last day of the month, sunrise is at 07:54 and sunset at 17:18 WET.
Sunshine
In December, the average sunshine is 5.6h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 in December translates into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Douro, Portugal
- Average high temperature in December: 57.9°F
The warmest month (with the highest average high temperature) is August (81.9°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in December: 45.7°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are January and February (44.1°F).
Average pressure in December
Douro, Portugal
- Average pressure in December: 30.2"Hg
The month with the highest atmospheric pressure is December (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.98"Hg).
Average wind speed in December
Douro, Portugal
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
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: 0.67"
The wettest month (with the highest rainfall) is November (1.06").
The driest month (with the least rainfall) is July (0.08").
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 24min
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 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 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: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
