December weather forecast
Barcelos, Portugal

December

Weather in December

December, the first month of the winter in Barcelos, is still a mild month, with an average temperature ranging between max 13.5°C (56.3°F) and min 8.1°C (46.6°F).

Temperature

Barcelos commences December with an average high-temperature of a still moderate 13.5°C (56.3°F), maintaining a close resemblance to the previous month. The temperature in Barcelos dips to an average of 8.1°C (46.6°F) during December nights.

Humidity

In Barcelos, the average relative humidity in December is 81%.

Rainfall

In Barcelos, during December, the rain falls for 13.8 days and regularly aggregates up to 129mm (5.08") of precipitation. In Barcelos, Portugal, during the entire year, the rain falls for 138.8 days and collects up to 930mm (36.61") of precipitation.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 07:41 and sunset at 17:05. On the last day of December, sunrise is at 08:00 and sunset at 17:14 WET.

Sunshine

In December, the average sunshine is 5.4h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the usual temperature for Barcelos in December?
In December, the average high-temperature and low-temperature in Barcelos are 13.5°C (56.3°F) and 8.1°C (46.6°F) respectively.
What is the average humidity in December in Barcelos?
In Barcelos, the average relative humidity in December is 81%.
How many days does it rain in December in Barcelos?
In Barcelos, Portugal, during December, the rain falls for 13.8 days and regularly aggregates up to 129mm (5.08") of precipitation.
What is the month with the shortest days in Barcelos?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Barcelos.
What is the average length of the day in December in Barcelos?
In Barcelos, the average day length in December is 9h and 14min.
When are sunrise and sunset in December in Barcelos?
In December, on the first day of the month, sunrise is at 07:41 and sunset at 17:05. On the last day of the month, in Barcelos, Portugal, sunrise is at 08:00 and sunset at 17:14 WET.
How long on average sun shines in December in Barcelos?
The average sunshine duration in December in Barcelos, Portugal, is 5.4h.
What are the months with the lowest UV index in Barcelos?
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Barcelos, Portugal.
What is the UV index reading in December in Barcelos?
In Barcelos, Portugal, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat 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
Barcelos, Portugal
  • Average high temperature in December: 13.5°C

The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in December: 8.1°C

The month with the highest average low temperature is August (15.5°C).
The coldest months (with the lowest average low temperature) are January and February (6.9°C).

Average pressure in December
Barcelos, Portugal
  • Average pressure in December: 1022.3mbar

The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in December
Barcelos, Portugal
  • Average wind speed in December: 10.7km/h

The windiest month (with the highest average wind speed) is February (11.4km/h).
The calmest month (with the lowest average wind speed) is September (8.8km/h).

Average humidity in December
Barcelos, Portugal
  • Average humidity in December: 81%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is September (68%).

Average rainfall in December
Barcelos, Portugal
  • Average rainfall in December: 129mm

The wettest month (with the highest rainfall) is November (144mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in December
Barcelos, Portugal
  • Average rainfall days in December: 13.8 days

The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (4.8 days).

Average daylight in December /
Average sunshine in December
Barcelos, Portugal
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in December
Barcelos, Portugal
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (12.5 days).

Average UV index in December
Barcelos, 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, March, November and December (UV index 3).

Average cloud cover in December
Barcelos, Portugal
  • Average cloud cover in December: 42

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July, August and September (Cloud cover 20).

Average visibility in December
Barcelos, Portugal
  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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