December weather forecastNaples, Italy
December
Weather in December
Winter begins in full swing in December in Naples. The weather continues with the trend set in November, marked by cold temperatures and substantial rainfall of 55mm (2.17"). The metropolis experiences its shortest daylight hours, but the sun still musters a decent show. The winter chill has fully set in, so warm clothing should be an essential part of any Naples December packing list. Despite the cold and rain, Christmas festivities add a warm, uplifting charm to the city during this month.Temperature
The start of December in Naples involves a subtle temperature drop, shifting from an enjoyable 17.5°C (63.5°F) in November to a moderate 13.6°C (56.5°F). Naples experiences an average nighttime temperature of 9.1°C (48.4°F) in December, reflecting a minor difference from the day's peak.Humidity
In December, the average relative humidity is 71%.Rainfall
In Naples, Italy, in December, during 13.4 rainfall days, 55mm (2.17") of precipitation is typically accumulated. In Naples, during the entire year, the rain falls for 139.4 days and collects up to 569mm (22.4") of precipitation.Snowfall
March through December are months without snowfall in Naples, Italy.Sea temperature
In Naples, the average seawater temperature in December is 16.4°C (61.5°F).Note: The majority of individuals find it unpleasurable to swim in 16.4°C (61.5°F). It becomes progressively harder to manage one's breathing as the water temperature falls below 21°C (69.8°F).
Daylight
December has the shortest days of the year in Naples, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 07:08 and sunset at 16:35. On the last day of the month, sunrise is at 07:27 and sunset at 16:45 CET.
Sunshine
The average sunshine in December is 6.2h.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Naples. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Naples, Italy
- Average high temperature in December: 13.6°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in December: 9.1°C
The month with the highest average low temperature is August (22.7°C).
The coldest months (with the lowest average low temperature) are January and February (7.8°C).
Average pressure in December
Naples, 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 April (1014mbar).
Average wind speed in December
Naples, Italy
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is February (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in December
Naples, Italy
- Average humidity in December: 71%
The months with the highest relative humidity are January and November (73%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Naples, Italy
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is November (114mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in December
Naples, Italy
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is January (15.4 days).
The months with the least rainy days are July and August (5.2 days).
Average snowfall in December
Naples, Italy
- Average snowfall in December: 0mm
The months with the highest snowfall are January and February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Naples, Italy
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Naples, Italy
- Average sea temperature in December: 16.4°C
The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).
Average daylight in December /
Average sunshine in December
Naples, Italy
- Average daylight in December: 9h and 18min
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 12min
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
Naples, Italy
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is July (24 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in December
Naples, 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
Naples, Italy
- Average cloud cover in December: 33
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Naples, 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).
