Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, known for its average high temperature of 12.3°C (54.1°F) and an average low temperature of 7.8°C (46°F), is the coldest month.Humidity
The months with the highest humidity in Naples are January and November, with an average relative humidity of 73%.Rainfall
In Naples, Italy, in January, it is raining for 15.4 days, with typically 67mm (2.64") of accumulated precipitation. In Naples, during the entire year, the rain falls for 139.4 days and collects up to 569mm (22.4") of precipitation.Snowfall
Months with snowfall are January and February. The months with the most snowfall are January and February, with an average 2mm (0.08") of accumulated snow.Sea temperature
In January, the average sea temperature is 14.6°C (58.3°F).Note: In 14.6°C (58.3°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health.
Daylight
In January, the average length of the day is 9h and 38min.On the first day of the month, sunrise is at 07:27 and sunset at 16:45. On the last day of January, in Naples, sunrise is at 07:14 and sunset at 17:18 CET.
Sunshine
January has the least sunshine of the year in Naples, with an average of 5.6h of sunshine.UV index
The months with the lowest UV index in Naples, Italy, are January, February and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In January, a regular UV index of 3 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the coldest month in Naples?
What is the usual temperature for Naples in January?
What are the most humid months in Naples?
What is the average humidity in January in Naples?
How many days does it rain in January in Naples?
When does it snow the most in Naples?
When does it start to snow in Naples?
How cold is the water in January in Naples?
What is the average length of the day in January in Naples?
What time are sunrise and sunset in January in Naples?
What is the month with the least sunshine in Naples?
How long on average sun shines in January in Naples?
What are the months with the lowest UV index in Naples?
What is the UV index intensity in January in Naples?
Average temperature in January
Naples, Italy
- Average high temperature in January: 12.3°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 January: 7.8°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 January
Naples, Italy
- Average pressure in January: 1016.2mbar
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 January
Naples, Italy
- Average wind speed in January: 13.4km/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 January
Naples, Italy
- Average humidity in January: 73%
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 January
Naples, Italy
- Average rainfall in January: 67mm
The wettest month (with the highest rainfall) is November (114mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in January
Naples, Italy
- Average rainfall days in January: 15.4 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 January
Naples, Italy
- Average snowfall in January: 2mm
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 January
Naples, Italy
- Average snowfall days in January: 0.4 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 January
Naples, Italy
- Average sea temperature in January: 14.6°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 January /
Average sunshine in January
Naples, Italy
- Average daylight in January: 9h and 4min
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 January: 5h and 4min
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 January
Naples, Italy
- Average sunshine days in January: 12.6 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 January
Naples, Italy
- Average UV index in January: 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 January
Naples, Italy
- Average cloud cover in January: 41
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 January
Naples, Italy
- Average visibility in January: 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).
Naples, Italy
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