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
December
Weather in December
Temperature
The commencement of December brings an average high-temperature of a still refreshing 14.4°C (57.9°F), marking an inconsequential divergence from November. Alvaiázere experiences an average nighttime temperature of 7.6°C (45.7°F) in the month of December.Humidity
In Alvaiázere, Portugal, the average relative humidity in December is 79%.Rainfall
In Alvaiázere, in December, during 6.6 rainfall days, 17mm (0.67") of precipitation is typically accumulated. Throughout the year, in Alvaiázere, 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 December in Alvaiázere, Portugal, sunrise is at 07:36 and sunset at 17:09. On the last day of the month, sunrise is at 07:54 and sunset at 17:18 WET.
Sunshine
The average sunshine in December in Alvaiázere, Portugal, 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 in Alvaiázere. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Alvaiázere?
What is the average humidity in December in Alvaiázere?
How much does it rain in Alvaiázere in December?
What is the month with the shortest days in Alvaiázere?
How many hours of daylight does Alvaiázere have in December?
What time are sunrise and sunset in December in Alvaiázere?
How many hours of sunshine does Alvaiázere have in December?
What are the months with the lowest UV index in Alvaiázere?
How high is the UV index in December in Alvaiázere?
Average temperature in December
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, Portugal
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
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
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, 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
Alvaiázere, 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).
