December weather forecastMestre, Italy

December

Weather in December

December, the first month of the winter in Mestre, is also a frosty month, with an average temperature ranging between min 4.6°C (40.3°F) and max 7.8°C (46°F).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's fresh 12.8°C (55°F) to a chilly 7.8°C (46°F). Mestre's nocturnal December readings average at a wintry 4.6°C (40.3°F), showing little variation from the daytime temperatures.

Humidity

The average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 9.8 days. Throughout December, 50mm (1.97") of precipitation is accumulated. Throughout the year, in Mestre, there are 150.5 rainfall days, and 766mm (30.16") of precipitation is accumulated.

Snowfall

Months with snowfall in Mestre are January through March and December. December is the month with the most snowfall. Snow falls for 0.8 days and accumulates 9mm (0.35") of snow.

Sea temperature

In Mestre, the average seawater temperature in December is 13.3°C (55.9°F).
Note: Swimming at temperatures less than 10°C (50°F) in 13.3°C (55.9°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.

Daylight

December has the shortest days of the year in Mestre, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 07:31 and sunset at 16:29. On the last day of December, sunrise is at 07:50 and sunset at 16:37 CET.

Sunshine

In Mestre, the average sunshine in December is 5.5h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Updated: Jan 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Mestre, the average high-temperature is 7.8°C (46°F), and the average low-temperature is 4.6°C (40.3°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 30°C (86°F).

The average relative humidity in December in Mestre is 75%.

In Mestre, during December, the rain falls for 9.8 days and regularly aggregates up to 50mm (1.97") of precipitation.

The month with the most snowfall in Mestre is December, when snow falls for 0.8 days and typically aggregates up to 9mm (0.35") of snow.

December is the first month it typically snows in Mestre, Italy. Throughout December, in the average 0.8 snowfall days, it receives 9mm (0.35") of snow.

In December, the average sea temperature is 13.3°C (55.9°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

With an average of 8h and 48min of daylight, December has the shortest days of the year in Mestre, Italy.

In Mestre, the average day length in December is 8h and 47min.

On the first day of December in Mestre, Italy, sunrise is at 07:31 and sunset at 16:29. On the last day of the month, sunrise is at 07:50 and sunset at 16:37 CET.

The average sunshine duration in December in Mestre, Italy, is 5.5h.

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

12.8°C

7.8°C

6.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.3km/h

10.3km/h

11km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.8

0.6

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

14.9

19.2

19.1

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Mestre, Italy

Average high temperature in December: 7.8°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (6.9°C).

Average low temperature in December: 4.6°C

The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).

Average pressure in December
Mestre, Italy

Average pressure in December: 1019.6mbar

The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is May (1014.5mbar).

Average wind speed in December
Mestre, Italy

Average wind speed in December: 9.4km/h

The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest months (with the lowest average wind speed) are June, July, August and December (9.4km/h).

Average humidity in December
Mestre, Italy

Average humidity in December: 75%

The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Mestre, Italy

Average rainfall in December: 50mm

The wettest month (with the highest rainfall) is November (99mm).
The driest month (with the least rainfall) is January (36mm).

Average rainfall days in December
Mestre, Italy

Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is December (9.8 days).

Average snowfall in December
Mestre, Italy

Average snowfall in December: 9mm

The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Mestre, Italy

Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December
Mestre, Italy

Average sea temperature in December: 13.3°C

The best months for swimming (with the highest average sea temperature) are July and August (25.4°C).
The coldest month (with the lowest average sea temperature) is February (8.8°C).

Average daylight in December /
Average sunshine in December
Mestre, Italy

Average daylight in December: 8h and 48min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

Average sunshine in December: 5h and 30min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Mestre, Italy

Average sunshine days in December: 19.2 days

The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in December
Mestre, Italy

Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Mestre, Italy

Average cloud cover in December: 41

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in December
Mestre, Italy

Average visibility in December: 10km

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