Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December is characterized by a slight reduction in average high-temperature, easing from a comfortable 18.1°C (64.6°F) in November to a mild 14.5°C (58.1°F). Ventotene's December nights witness minimal differential from the daytime temperatures, with averages of 11.8°C (53.2°F).Humidity
In Ventotene, the average relative humidity in December is 68%.Rainfall
In Ventotene, in December, during 14.5 rainfall days, 64mm (2.52") of precipitation is typically accumulated. Throughout the year, there are 147.3 rainfall days, and 680mm (26.77") of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Sea temperature
In December, the average sea temperature is 16.4°C (61.5°F).Note: Most people find it challenging to enjoy swimming in water that is 16.4°C (61.5°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.
Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:11 and sunset at 16:39. On the last day of December, in Ventotene, sunrise is at 07:30 and sunset at 16:48 CET.
Sunshine
The average sunshine in December is 6.1h.UV index
The average daily maximum UV index in December in Ventotene is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Ventotene in December?
What is the average humidity in December?
How much does it rain in December?
When it does not snow?
What is the sea water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December in Ventotene?
How high is the UV index in December?
Average temperature in December
Ventotene, Italy
- Average high temperature in December: 14.5°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 (12.8°C).
- Average low temperature in December: 11.8°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is February (10.1°C).
Average pressure in December
Ventotene, Italy
- Average pressure in December: 1018.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1014mbar).
Average wind speed in December
Ventotene, Italy
- Average wind speed in December: 18.6km/h
The windiest month (with the highest average wind speed) is February (18.7km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Ventotene, Italy
- Average humidity in December: 68%
The months with the highest relative humidity are March, April and May (72%).
The month with the lowest relative humidity is September (66%).
Average rainfall in December
Ventotene, Italy
- Average rainfall in December: 64mm
The wettest month (with the highest rainfall) is November (140mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in December
Ventotene, Italy
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is November (17.3 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in December
Ventotene, Italy
- Average snowfall in December: 0mm
The month with the highest snowfall is February (1mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Ventotene, Italy
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Ventotene, Italy
- Average sea temperature in December: 16.4°C
The best month for swimming (with the highest average sea temperature) is August (25.6°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).
Average daylight in December /
Average sunshine in December
Ventotene, 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 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in December
Ventotene, Italy
- Average sunshine days in December: 13.9 days
The months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is November (11.2 days).
Average UV index in December
Ventotene, Italy
- Average UV index in December: 4
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Ventotene, Italy
- Average cloud cover in December: 33
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Ventotene, 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).
