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 from November to December is characterized by an average high-temperature of a mild 15.5°C (59.9°F), not significantly different from the 17.6°C (63.7°F) of November. Frielas's nights in December cool down to an average low-temperature of 10.4°C (50.7°F).Humidity
In Frielas, the average relative humidity in December is 76%.Rainfall
In Frielas, in December, during 11.1 rainfall days, 46mm (1.81") of precipitation is typically accumulated. In Frielas, during the entire year, the rain falls for 111.8 days and collects up to 359mm (14.13") of precipitation.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:36 and sunset at 17:15. On the last day of the month, sunrise is at 07:54 and sunset at 17:24 WET.
Sunshine
In December, the average sunshine is 5.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 3 during December leads to these instructions:
Heed the precautions - It is counselled to guard against solar damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Frielas, Portugal
- Average high temperature in December: 15.5°C
The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in December: 10.4°C
The month with the highest average low temperature is August (17.6°C).
The coldest month (with the lowest average low temperature) is February (9.4°C).
Average pressure in December
Frielas, 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 (1015.7mbar).
Average wind speed in December
Frielas, Portugal
- Average wind speed in December: 14.4km/h
The windiest months (with the highest average wind speed) are February and July (15.9km/h).
The calmest months (with the lowest average wind speed) are September and October (12.9km/h).
Average humidity in December
Frielas, Portugal
- Average humidity in December: 76%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Frielas, Portugal
- Average rainfall in December: 46mm
The wettest month (with the highest rainfall) is November (61mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in December
Frielas, Portugal
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is November (14.1 days).
The month with the least rainy days is August (2.3 days).
Average daylight in December /
Average sunshine in December
Frielas, Portugal
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Frielas, Portugal
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is August (26.4 days).
The months with the least sunshine days are April and November (14.5 days).
Average UV index in December
Frielas, Portugal
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Frielas, Portugal
- Average cloud cover in December: 35
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Frielas, Portugal
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
