December weather forecast and climate
Barcelona, Spain

The artistic Park Gull designed by Gaudi in Barcelona, Spain
The artistic Park Gull designed by Gaudi in Barcelona, Spain

Weather in December

The first month of the winter, December, is also a moderate month in Barcelona, Spain, with average temperature varying between 13.4°C (56.1°F) and 8.5°C (47.3°F).

Temperature

In Barcelona, the average high-temperature is essentially the same as in November - a mild 13.4°C (56.1°F). In December, in Barcelona, the average low-temperature is 8.5°C (47.3°F).

Humidity

The average relative humidity in Barcelona is 70%.

Rainfall

In December, the rain falls for 6.4 days. Throughout December, 28mm (1.1") of precipitation is accumulated. Throughout the year, in Barcelona, there are 117.9 rainfall days, and 435mm (17.13") of precipitation is accumulated.

Snowfall

March through August, October through December are months without snowfall in Barcelona.

Sea temperature

In Barcelona, the average seawater temperature in December is 15.5°C (59.9°F).
Note: Swimming in 15.5°C (59.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

The month with the shortest days in Barcelona is December, with an average of 9.2h of daylight.

Sunshine

The month with the least sunshine in Barcelona, Spain, is December, with an average of 6.7h of sunshine.

UV index

Months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in December in Barcelona?

The average high-temperature, in December, is 13.4°C (56.1°F), while the average low-temperature is 8.5°C (47.3°F).

What is the average humidity in December in Barcelona?

The average relative humidity in December in Barcelona, Spain, is 70%.

How many days does it rain in December in Barcelona?

In Barcelona, Spain, during December, the rain falls for 6.4 days and regularly aggregates up to 28mm (1.1") of precipitation.

Does it snow in Barcelona in December?

In Barcelona, Spain, in December, it doesn't snow. In January, it regularly snows.

When it does not snow in Barcelona?

In Barcelona, Spain, snow does not fall in March through August, October through December.

What is the sea water temperature in December in Barcelona?

In Barcelona, Spain, in December, the average water temperature is 15.5°C (59.9°F). For most, swimming in 15.5°C (59.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the month with the shortest days in Barcelona?

The month with the shortest days in Barcelona is December, with an average of 9.2h of daylight.

How many hours of daylight does Barcelona have in December?

The average length of the day in December in Barcelona is 9.2h.

What is the month with the least sunshine in Barcelona?

With an average of 6.7h of sunshine, December has the least sunshine of the year in Barcelona.

How many hours of sunshine does Barcelona have in December?

The average sunshine in December in Barcelona is 6.7h.

What are the months with the lowest UV index in Barcelona?

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Barcelona.

What is the UV index intensity in December in Barcelona?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Barcelona, Spain

Average temperature in December - Barcelona, Spain
  • Average high temperature in December: 13.4°C

The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (12.4°C).

  • Average low temperature in December: 8.5°C

The month with the highest average low temperature is August (22.1°C).
The coldest month (with the lowest average low temperature) is February (7.1°C).

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Average pressure in December
Barcelona, Spain

Average pressure in December - Barcelona, Spain
  • Average pressure in December: 1020.7mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).

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Average wind speed in December
Barcelona, Spain

Average wind speed in December - Barcelona, Spain
  • Average wind speed in December: 11.1km/h

The windiest month (with the highest average wind speed) is March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

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Average humidity in December
Barcelona, Spain

Average humidity in December - Barcelona, Spain
  • Average humidity in December: 70%

Months with the highest relative humidity are April and October (72%).
Months with the lowest relative humidity are February, June and November (68%).

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Average rainfall in December
Barcelona, Spain

Average rainfall in December - Barcelona, Spain
  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (16mm).

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Average rainfall days in December
Barcelona, Spain

Average rainfall days in December - Barcelona, Spain
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is December (6.4 days).

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Average snowfall in December
Barcelona, Spain

Average snowfall in December - Barcelona, Spain
  • Average snowfall in December: 0mm

Months with the highest snowfall are January, February and September (1mm).
Months with the least snowfall are March, April, May, June, July, August, October, November and December (0mm).

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Average snowfall days in December
Barcelona, Spain

Average snowfall days in December - Barcelona, Spain
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (0.2 days).
Months with the least snowfall days are March, April, May, June, July, August, October, November and December (0 days).

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Average sea temperature in December
Barcelona, Spain

Average sea temperature in December - Barcelona, Spain
  • Average sea temperature in December: 15.5°C

The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).

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Average daylight in December /
Average sunshine in December
Barcelona, Spain

Average daylight in December / Average sunshine in December - Barcelona, Spain
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 6.7h

Months with the most sunshine are June and July (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in December
Barcelona, Spain

Average sunshine days in December - Barcelona, Spain
  • Average sunshine days in December: 22.9 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is September (12.3 days).

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Average UV index in December
Barcelona, Spain

Average UV index in December - Barcelona, Spain
  • Average UV index in December: 3

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in December
Barcelona, Spain

Average cloud cover in December - Barcelona, Spain
  • Average cloud cover in December: 25

The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in December
Barcelona, Spain

Average visibility in December - Barcelona, Spain
  • Average visibility in December: 10km

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

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