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 shift into December finds Alvares at an average high-temperature of a still refreshing 14°C (57.2°F), closely comparable to November's conditions. During December, Alvares's temperature falls to a steady low-temperature average of 6.5°C (43.7°F).Humidity
In December, the average relative humidity in Alvares is 80%.Rainfall
In Alvares, Portugal, in December, during 11 rainfall days, 70mm (2.76") of precipitation is typically accumulated. Throughout the year, in Alvares, Portugal, there are 119.4 rainfall days, and 525mm (20.67") 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 the month, sunrise is at 07:35 and sunset at 17:07. On the last day of December, in Alvares, sunrise is at 07:54 and sunset at 17:17 WET.
Sunshine
In Alvares, the average sunshine in December is 5.7h.UV index
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Alvares. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are December temperatures in Alvares?
What is the average humidity in December in Alvares?
How much does it rain in Alvares in December?
What is the month with the shortest days in Alvares?
How many hours of daylight does Alvares have in December?
When are sunrise and sunset in December in Alvares?
How long on average sun shines in December in Alvares?
What is the month with the lowest UV index in Alvares?
What is the UV index reading in December in Alvares?
Average temperature in December
Alvares, Portugal
- Average high temperature in December: 14°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (12.9°C).
- Average low temperature in December: 6.5°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in December
Alvares, Portugal
- Average pressure in December: 1022.7mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Alvares, Portugal
- Average wind speed in December: 8.4km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is September (7.2km/h).
Average humidity in December
Alvares, Portugal
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in December
Alvares, Portugal
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in December
Alvares, Portugal
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is August (2.8 days).
Average daylight in December /
Average sunshine in December
Alvares, 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 12min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Alvares, Portugal
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is August (27.5 days).
The months with the least sunshine days are April and November (14.3 days).
Average UV index in December
Alvares, Portugal
- Average UV index in December: 3
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, November and December (UV index 3).
Average cloud cover in December
Alvares, Portugal
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in December
Alvares, Portugal
- Average visibility in December: 9km
The months with the highest visibility are June, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, May, July, August and November (8km).
Alvares, Portugal
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