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 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
Weather in December
Temperature
The arrival of December suggests a slight decrease in the average high-temperature, moving from a comfortable 17.2°C (63°F) in November to a still refreshing 13.5°C (56.3°F). In December, Nettuno temperatures settle at a low of 9.5°C (49.1°F) during the nights, reflecting a minor change from daytime highs.Humidity
In Nettuno, the average relative humidity in December is 72%.Rainfall
In Nettuno, in December, during 13.5 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Nettuno, during the entire year, the rain falls for 145.7 days and collects up to 681mm (26.81") of precipitation.Sea temperature
In December, the average sea temperature is 16.3°C (61.3°F).Note: For the majority of people, swimming in water at 16.3°C (61.3°F) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 07:16 and sunset at 16:40. On the last day of the month, sunrise is at 07:35 and sunset at 16:49 CET.
Sunshine
The average sunshine in December in Nettuno is 6.1h.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Nettuno, Italy. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 3 in December translates into these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What are December temperatures in Nettuno?
What is the average humidity in December in Nettuno?
How much does it rain in Nettuno in December?
How cold is the water in December in Nettuno?
What is the month with the shortest days in Nettuno?
How many hours of daylight does Nettuno have in December?
When are sunrise and sunset in December in Nettuno?
How many hours of sunshine does Nettuno have in December?
What are the months with the lowest UV index in Nettuno?
How high is the UV index in December in Nettuno?
Average temperature in December
Nettuno, Italy
- Average high temperature in December: 13.5°C
The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in December: 9.5°C
The month with the highest average low temperature is August (22.5°C).
The coldest month (with the lowest average low temperature) is February (8.1°C).
Average pressure in December
Nettuno, 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 (1014.1mbar).
Average wind speed in December
Nettuno, Italy
- Average wind speed in December: 14.6km/h
The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in December
Nettuno, Italy
- Average humidity in December: 72%
The months with the highest relative humidity are January, March, April and November (74%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Nettuno, Italy
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is November (142mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in December
Nettuno, Italy
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is November (16.6 days).
The month with the least rainy days is August (5.1 days).
Average sea temperature in December
Nettuno, Italy
- Average sea temperature in December: 16.3°C
The best month for swimming (with the highest average sea temperature) is August (25.1°C).
The coldest month (with the lowest average sea temperature) is February (14.1°C).
Average daylight in December /
Average sunshine in December
Nettuno, Italy
- Average daylight in December: 9h and 1min
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 1min
The months with the most sunshine are 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
Nettuno, Italy
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is November (11.6 days).
Average UV index in December
Nettuno, 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 and December (UV index 3).
Average cloud cover in December
Nettuno, Italy
- Average cloud cover in December: 33
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Nettuno, 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).
Nettuno, Italy
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