December weather forecast
Barros, Portugal

December

Weather in December

The first month of the winter, December, is also a moderate month in Barros, Portugal, with an average temperature fluctuating between 14°C (57.2°F) and 9.6°C (49.3°F).

Temperature

December denotes a minimal variation in the average high-temperature to a still refreshing 14°C (57.2°F) from November's 15.4°C (59.7°F). A slight dip in temperature to a frosty 9.6°C (49.3°F) marks the average nights in Barros during December.

Humidity

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

Rainfall

In Barros, in December, during 13.5 rainfall days, 106mm (4.17") of precipitation is typically accumulated. Throughout the year, there are 131 rainfall days, and 766mm (30.16") of precipitation is accumulated.

Daylight

The month with the shortest days in Barros is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 07:41 and sunset at 17:03. On the last day of December, in Barros, sunrise is at 08:00 and sunset at 17:13 WET.

Sunshine

In December, the average sunshine is 5.4h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Barros. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 3 during December morphs into the following directions:
Guard yourself - Avoiding sunburn is suggested. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What are December temperatures in Barros?
The average high-temperature and low-temperature in Barros during December are 14°C (57.2°F) and 9.6°C (49.3°F) respectively.
What is the average humidity in December in Barros?
In Barros, Portugal, the average relative humidity in December is 79%.
How much does it rain in Barros in December?
In Barros, Portugal, in December, during 13.5 rainfall days, 106mm (4.17") of precipitation is typically accumulated.
What is the month with the shortest days in Barros?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Barros, Portugal.
What is the average length of the day in December in Barros?
The average day length in December is 9h and 13min.
What time are sunrise and sunset in December in Barros?
In December, on the first day of the month, sunrise is at 07:41 and sunset at 17:03. On the last day of the month, in Barros, Portugal, sunrise is at 08:00 and sunset at 17:13 WET.
How many hours of sunshine does Barros have in December?
The average sunshine duration in December in Barros is 5.4h.
What are the months with the lowest UV index in Barros?
The months with the lowest UV index in Barros are January, February, November and December, with an average maximum UV index of 3.
How high is the UV index in December in Barros?
In December, the average daily maximum UV index in Barros, Portugal, is 3. A UV Index estimate of 3 to 5 represents 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
Barros, Portugal
  • Average high temperature in December: 14°C

The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (12.8°C).

  • Average low temperature in December: 9.6°C

The month with the highest average low temperature is August (16.6°C).
The coldest month (with the lowest average low temperature) is February (8.5°C).

Average pressure in December
Barros, 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
Barros, Portugal
  • Average wind speed in December: 14.5km/h

The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is September (11.8km/h).

Average humidity in December
Barros, Portugal
  • Average humidity in December: 79%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (72%).

Average rainfall in December
Barros, Portugal
  • Average rainfall in December: 106mm

The wettest month (with the highest rainfall) is November (121mm).
The driest month (with the least rainfall) is July (7mm).

Average rainfall days in December
Barros, Portugal
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is November (16.4 days).
The month with the least rainy days is August (4.3 days).

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

The month with the longest days is June (Average daylight: 15h and 12min).
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 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in December
Barros, Portugal
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (12.5 days).

Average UV index in December
Barros, Portugal
  • Average UV index in December: 3

The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Barros, Portugal
  • Average cloud cover in December: 41

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 17).

Average visibility in December
Barros, Portugal
  • Average visibility in December: 10km

The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (10km).
The months with the lowest visibility are January and August (9km).

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