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 shift to December signals an average high-temperature of a still refreshing 14.4°C (57.9°F), subtly varied from November's 16.2°C (61.2°F). An average temperature of 7.6°C (45.7°F) marks the nights in December.Humidity
The average relative humidity in December in Alvorge, Portugal, is 79%.Rainfall
In December, the rain falls for 6.6 days. Throughout December, 17mm (0.67") of precipitation is accumulated. In Alvorge, during the entire year, the rain falls for 79 days and collects up to 141mm (5.55") of precipitation.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December in Alvorge, Portugal, sunrise is at 07:36 and sunset at 17:09. On the last day of the month, sunrise is at 07:55 and sunset at 17:18 WET.
Sunshine
In December, the average sunshine in Alvorge 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 medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 3 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Alvorge in December?
What is the average humidity in December in Alvorge?
How many days does it rain in December in Alvorge?
What is the month with the shortest days in Alvorge?
What is the average length of the day in December in Alvorge?
When are sunrise and sunset in December in Alvorge?
How long on average sun shines in December in Alvorge?
When is the lowest UV index in Alvorge?
How high is the UV index in December in Alvorge?
Average temperature in December
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, 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
Alvorge, Portugal
- Average cloud cover in December: 39
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Alvorge, 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).
