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
In December, the average high-temperature registers at a still refreshing 13.5°C (56.3°F), nearly identical to November's 15.2°C (59.4°F). Silveiros experiences an average low-temperature of 8.1°C (46.6°F) in month of December.Humidity
In December, the average relative humidity in Silveiros is 81%.Rainfall
In Silveiros, in December, it is raining for 13.8 days, with typically 129mm (5.08") of accumulated precipitation. In Silveiros, during the entire year, the rain falls for 139.3 days and collects up to 934mm (36.77") of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 07:41 and sunset at 17:05. On the last day of the month, sunrise is at 08:00 and sunset at 17:14 WET.
Sunshine
The average sunshine in December is 5.3h.UV index
The months with the lowest UV index in Silveiros, Portugal, are January through March, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 3 in December transforms into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What is the temperature in December in Silveiros?
What is the average humidity in December in Silveiros?
How many days does it rain in December in Silveiros?
What is the month with the shortest days in Silveiros?
What is the average length of the day in December in Silveiros?
What time are sunrise and sunset in December in Silveiros?
How many hours of sunshine does Silveiros have in December?
What is the month with the lowest UV index in Silveiros?
How high is the UV index in December in Silveiros?
Average temperature in December
Silveiros, Portugal
- Average high temperature in December: 13.5°C
The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in December: 8.1°C
The month with the highest average low temperature is August (15.5°C).
The coldest months (with the lowest average low temperature) are January and February (6.9°C).
Average pressure in December
Silveiros, Portugal
- Average pressure in December: 1022.3mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in December
Silveiros, Portugal
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is February (11.4km/h).
The calmest month (with the lowest average wind speed) is September (8.8km/h).
Average humidity in December
Silveiros, Portugal
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is September (68%).
Average rainfall in December
Silveiros, Portugal
- Average rainfall in December: 129mm
The wettest month (with the highest rainfall) is November (144mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in December
Silveiros, Portugal
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (4.8 days).
Average daylight in December /
Average sunshine in December
Silveiros, Portugal
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Silveiros, Portugal
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in December
Silveiros, 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, March, November and December (UV index 3).
Average cloud cover in December
Silveiros, Portugal
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in December
Silveiros, Portugal
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Silveiros, Portugal
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