December weather forecast
Arzachena, Italy

December

Weather in December

December, the first month of the winter in Arzachena, is also a moderate month, with an average temperature fluctuating between 8.8°C (47.8°F) and 14°C (57.2°F).

Temperature

The onset of December aligns with a soft reduction in the average high-temperature, gently falling from an enjoyable 17.1°C (62.8°F) in November to a mild 14°C (57.2°F). Arzachena, during the month of December, experiences an average low-temperature of 8.8°C (47.8°F).

Humidity

The average relative humidity in December is 75%.

Rainfall

In Arzachena, during December, the rain falls for 9.9 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, in Arzachena, there are 107.2 rainfall days, and 361mm (14.21") of precipitation is accumulated.

Snowfall

Months with snowfall are February and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Arzachena, during the entire year, snow falls for 0.9 days and aggregates up to 13mm (0.51") of snow.

Sea temperature

In December, the average sea temperature in Arzachena is 15°C (59°F).
Note: Swimming is not a pleasant activity for most when the water temperature is 15°C (59°F). As the water temperature drops from 21°C (69.8°F) to 15°C (59°F), breathing becomes more difficult to control.

Daylight

December has the shortest days of the year in Arzachena, Italy, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 07:28 and sunset at 16:54. On the last day of December, in Arzachena, sunrise is at 07:47 and sunset at 17:03 CET.

Sunshine

In Arzachena, Italy, the average sunshine in December is 6.4h.

UV index

The months with the lowest UV index in Arzachena are January, February and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 3 during December translates into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

What is the average December temperature in Arzachena?
In December, in Arzachena, the average high-temperature is 14°C (57.2°F), and the average low-temperature is 8.8°C (47.8°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 32°C (89.6°F).
What is the average humidity in December in Arzachena?
In Arzachena, the average relative humidity in December is 75%.
How much does it rain in Arzachena in December?
In Arzachena, in December, during 9.9 rainfall days, 29mm (1.14") of precipitation is typically accumulated.
When does it start snowing in Arzachena?
December is the first month it typically snows in Arzachena. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.
What is the sea temperature in December in Arzachena?
In Arzachena, the average seawater temperature in December 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).
What is the month with the shortest days in Arzachena?
The month with the shortest days in Arzachena, Italy, is December, with an average of 9h and 18min of daylight.
What is the average length of the day in December in Arzachena?
The average day length in December in Arzachena is 9h and 17min.
What time are sunrise and sunset in December in Arzachena?
In December, on the first day of the month, sunrise is at 07:28 and sunset at 16:54. On the last day of the month, in Arzachena, sunrise is at 07:47 and sunset at 17:03 CET.
How many hours of sunshine does Arzachena have in December?
In December, the average sunshine duration in Arzachena, Italy, is 6.4h.
What is the month with the lowest UV index in Arzachena?
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the UV index intensity in December in Arzachena?
In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
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 snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Arzachena, Italy
  • Average high temperature in December: 14°C

The warmest months (with the highest average high temperature) are July and August (29.5°C).
The month with the lowest average high temperature is January (12.7°C).

  • Average low temperature in December: 8.8°C

The month with the highest average low temperature is August (21°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).

Average pressure in December
Arzachena, Italy
  • Average pressure in December: 1018.4mbar

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).

Average wind speed in December
Arzachena, Italy
  • Average wind speed in December: 18km/h

The windiest month (with the highest average wind speed) is January (18.5km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).

Average humidity in December
Arzachena, Italy
  • Average humidity in December: 75%

The months with the highest relative humidity are January and November (76%).
The month with the lowest relative humidity is July (60%).

Average rainfall in December
Arzachena, Italy
  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is November (49mm).
The driest month (with the least rainfall) is July (7mm).

Average rainfall days in December
Arzachena, Italy
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is November (12.5 days).
The month with the least rainy days is July (3.6 days).

Average snowfall in December
Arzachena, Italy
  • Average snowfall in December: 1mm

The month with the highest snowfall is February (12mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Arzachena, Italy
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December
Arzachena, Italy
  • 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, March and April (14°C).

Average daylight in December /
Average sunshine in December
Arzachena, Italy
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 6h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

Average sunshine days in December
Arzachena, Italy
  • Average sunshine days in December: 17.8 days

The months with the most sunshine days are July and August (25.5 days).
The month with the least sunshine days is November (15.6 days).

Average UV index in December
Arzachena, Italy
  • Average UV index in December: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December
Arzachena, Italy
  • Average cloud cover in December: 30

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in December
Arzachena, Italy
  • 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).

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