December weather forecastCalella, Spain

December

Weather in December

December, the first month of the winter in Calella, is still a mild month, with temperature in the range of an average low of 9.3°C (48.7°F) and an average high of 13.2°C (55.8°F).

Temperature

Calella, Spain, marks the start of December with an average high-temperature of a moderate 13.2°C (55.8°F), hinting at a slight fluctuation from November's 16°C (60.8°F). Recording a slight decline in temperature during the nights, Calella's December temperatures average at a frosty 9.3°C (48.7°F).

Humidity

In December, the average relative humidity is 70%.

Rainfall

In Calella, in December, it is raining for 6 days, with typically 31mm (1.22") of accumulated precipitation. In Calella, Spain, during the entire year, the rain falls for 120.9 days and collects up to 472mm (18.58") of precipitation.

Snowfall

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

Sea temperature

In December, the average sea temperature is 15°C (59°F).
Note: In water with a temperature of 15°C (59°F), most individuals do not find swimming enjoyable. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), breathing control becomes more difficult.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:57 and sunset at 17:20. On the last day of December, in Calella, sunrise is at 08:16 and sunset at 17:29 CET.

Sunshine

In Calella, the average sunshine in December is 6.8h.

UV index

In December, the average daily maximum UV index in Calella is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In December, the average maximum UV index of 4 translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Calella, is 13.2°C (55.8°F) and the average low-temperature is 9.3°C (48.7°F).

In December, the average relative humidity in Calella, Spain, is 70%.

In December, the rain falls for 6 days. Throughout December, 31mm (1.22") of precipitation is accumulated.

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

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

In December, the average sea temperature is 15°C (59°F). Swimming in 15°C (59°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

The month with the shortest days in Calella, Spain, is December, with an average of 9h and 12min of daylight.

The average day length in December is 9h and 13min.

On the first day of December in Calella, Spain, sunrise is at 07:57 and sunset at 17:20. On the last day of the month, sunrise is at 08:16 and sunset at 17:29 CET.

The average sunshine duration in December in Calella, Spain, is 6.8h.

In Calella, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

16°C

13.2°C

12.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.3km/h

13.5km/h

13.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.3

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

23.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Calella, Spain

Average high temperature in December: 13.2°C

The warmest month (with the highest average high temperature) is August (26.2°C).
The month with the lowest average high temperature is January (12.1°C).

Average low temperature in December: 9.3°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is February (7.7°C).

Average pressure in December
Calella, Spain

Average pressure in December: 1020.5mbar

The month with the highest atmospheric pressure is December (1020.5mbar).
The months with the lowest atmospheric pressure are April and November (1014.7mbar).

Average wind speed in December
Calella, Spain

Average wind speed in December: 12.5km/h

The windiest month (with the highest average wind speed) is February (13.4km/h).
The calmest months (with the lowest average wind speed) are July and August (10.3km/h).

Average humidity in December
Calella, Spain

Average humidity in December: 70%

The month with the highest relative humidity is April (75%).
The month with the lowest relative humidity is February (68%).

Average rainfall in December
Calella, Spain

Average rainfall in December: 31mm

The wettest month (with the highest rainfall) is October (65mm).
The driest month (with the least rainfall) is February (17mm).

Average rainfall days in December
Calella, Spain

Average rainfall days in December: 6 days

The month with the highest number of rainy days is September (13.5 days).
The month with the least rainy days is December (6 days).

Average snowfall in December
Calella, Spain

Average snowfall in December: 0mm

The month with the highest snowfall is January (2mm).
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0mm).

Average snowfall days in December
Calella, Spain

Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, October, November and December (0 days).

Average sea temperature in December
Calella, Spain

Average sea temperature in December: 15°C

The best month for swimming (with the highest average sea temperature) is August (25°C).
The coldest months (with the lowest average sea temperature) are January, February and March (13°C).

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

Average daylight in December: 9h and 12min

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: 6h and 48min

The months with the most sunshine are June and July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and November (Average sunshine: 6h and 42min).

Average sunshine days in December
Calella, Spain

Average sunshine days in December: 23.4 days

The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is September (13.6 days).

Average UV index in December
Calella, Spain

Average UV index in December: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January and November (UV index 3).

Average cloud cover in December
Calella, Spain

Average cloud cover in December: 24

The month with the most cloud cover is April (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 17).

Average visibility in December
Calella, Spain

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).