Portovenere
Italy
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Portovenere, Italy

The first month of the winter, December, is still a cool month in Portovenere, Italy, with average temperature ranging between min 5°C (41°F) and max 11°C (51.8°F).

Temperature

In Portovenere, the average high-temperature in December marginally drops, from a moderate 15°C (59°F) in November, to a cool 11°C (51.8°F). The average low-temperature, in December, is 5°C (41°F).

Rainfall

In Portovenere, Italy, during December, the rain falls for 12 days and regularly aggregates up to 101mm (4") of precipitation. In Portovenere, during the entire year, the rain falls for 131 days and collects up to 1007mm (39.6") of precipitation.

Sea temperature

In Portovenere, the average water temperature is 15.4°C (59.7°F).
Note: For most, swimming in 15.4°C (59.7°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).

Daylight

With an average of 8.9h of daylight, December has the shortest days of the year in Portovenere.

Sunshine

With an average of 3h of sunshine, December has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in December in Portovenere?

The average high-temperature, in December, in Portovenere, Italy, is 11°C (51.8°F), while the average low-temperature is 5°C (41°F).

How much does it rain in Portovenere in December?

In Portovenere, Italy, during December, the rain falls for 12 days and regularly aggregates up to 101mm (4") of precipitation.

What is the sea temperature in December in Portovenere?

In December, the average sea temperature is 15.4°C (59.7°F). For swimming, a surface water temperature of 15.4°C (59.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Portovenere?

The month with the shortest days in Portovenere, Italy, is December, with an average of 8.9h of daylight.

What is the average length of the day in December in Portovenere?

In Portovenere, the average length of the day in December is 8.9h.

What is the month with the least sunshine in Portovenere?

With an average of 3h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Portovenere?

In December, the average sunshine is 3h.

What is the month with the lowest UV index in Portovenere?

Months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Portovenere?

In December, the average daily maximum UV index in Portovenere is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Portovenere, Italy
  • Average high temperature in December: 11°C

Warmest months (with the highest average high temperature) are July and August (27°C).
The month with the lowest average high temperature is January (10°C).

  • Average low temperature in December: 5°C

Months with the highest average low temperature are July and August (18°C).
Coldest months (with the lowest average low temperature) are January and February (4°C).

Average rainfall in December - Portovenere, Italy
  • Average rainfall in December: 101mm

The wettest month (with the highest rainfall) is October (130mm).
The driest month (with the lowest rainfall) is July (25mm).

Average rainfall days in December - Portovenere, Italy
  • Average rainfall days in December: 12 days

Months with the highest number of rainy days are March, April and November (13 days).
The month with the lowest number of rainy days is July (6 days).

Average sea temperature in December - Portovenere, Italy
  • Average sea temperature in December: 15.4°C

The best month for swimming (with the highest average sea temperature) is August (24.4°C).
The coldest month (with the lowest average sea temperature) is February (12.9°C).

Average daylight in December / Average sunshine in December - Portovenere, Italy
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 3h

The month with most sunshine is July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 3h).

Average UV index in December - Portovenere, Italy
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).