December weather forecast
Arega, Portugal

December

Weather in December

December, the first month of the winter in Arega, is still a refreshing month, with an average temperature ranging between max 14.4°C (57.9°F) and min 7.6°C (45.7°F).

Temperature

In December, Arega's weather conditions record an average high-temperature of a mild 14.4°C (57.9°F), demonstrating little divergence from the preceding month. Arega's nighttime temperature in December drops to an average of 7.6°C (45.7°F).

Humidity

In Arega, the average relative humidity in December is 79%.

Rainfall

In Arega, during December, the rain falls for 6.6 days and regularly aggregates up to 17mm (0.67") of precipitation. In Arega, Portugal, 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 in Arega is December, with an average of 9h and 24min of daylight.
On the first day of December in Arega, sunrise is at 07:35 and sunset at 17:09. On the last day of the month, sunrise is at 07:54 and sunset at 17:18 WET.

Sunshine

In December, the average sunshine is 5.6h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 3 transforms into the following advice:
Undertake precautions - It is suggested to shield oneself from sunburn. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What is the average December temperature in Arega?
The average high-temperature, in December, in Arega, is 14.4°C (57.9°F), while the average low-temperature is 7.6°C (45.7°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 30°C (86°F).
What is the average humidity in December in Arega?
The average relative humidity in December in Arega is 79%.
How many days does it rain in December in Arega?
In Arega, Portugal, in December, during 6.6 rainfall days, 17mm (0.67") of precipitation is typically accumulated.
What is the month with the shortest days in Arega?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
What is the average length of the day in December in Arega?
In December, the average day length is 9h and 24min.
When is the sunrise / sunset in December in Arega?
In December, on the first day of the month, sunrise is at 07:35 and sunset at 17:09. On the last day of the month, in Arega, sunrise is at 07:54 and sunset at 17:18 WET.
How long on average sun shines in December in Arega?
In Arega, the average sunshine duration in December is 5.6h.
What are the months with the lowest UV index in Arega?
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Arega.
How high is the UV index in December in Arega?
In December, the average daily maximum UV index in Arega, Portugal, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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
Arega, 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).

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