January weather forecastPosillipo, Italy

January

Weather in January

January, the same as December, is a cool winter month in Posillipo, Italy, with temperature in the range of an average high of 12.3°C (54.1°F) and an average low of 8°C (46.4°F).

Temperature

January proves to be the coldest month, recording an average maximum temperature of 12.3°C (54.1°F) and a minimum temperature of 8°C (46.4°F).

Humidity

With an average relative humidity of 73%, January is the most humid month in Posillipo.

Rainfall

In Posillipo, during January, the rain falls for 13.6 days and regularly aggregates up to 54mm (2.13") of precipitation. Throughout the year, there are 133.1 rainfall days, and 538mm (21.18") of precipitation is accumulated.

Snowfall

Months with snowfall are January and February. The months with the most snowfall in Posillipo are January and February, with an average 2mm (0.08") of accumulated snow.

Daylight

The average length of the day in January in Posillipo 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 Posillipo, sunrise is at 07:14 and sunset at 17:18 CET.

Sunshine

With an average of 5.6h of sunshine, January has the least sunshine of the year.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Posillipo. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 3 in January translates into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Posillipo, January is known for its average lowest temperatures, reaching a high of 12.3°C (54.1°F) and a low of 8°C (46.4°F).

In January, the average high-temperature and low-temperature in Posillipo are 12.3°C (54.1°F) and 8°C (46.4°F) respectively.

The most humid month is January, with an average relative humidity of 73%.

In January, the average relative humidity in Posillipo, Italy, is 73%.

In Posillipo, Italy, during January, the rain falls for 13.6 days and regularly aggregates up to 54mm (2.13") of precipitation.

The months with the most snowfall in Posillipo, Italy, are January and February, with an average 2mm (0.08") of accumulated snow.

January is the first month it typically snows in Posillipo, Italy. Throughout January, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow.

In Posillipo, Italy, the average day length in January is 9h and 38min.

On the first day of January in Posillipo, Italy, sunrise is at 07:27 and sunset at 16:45. On the last day of the month, sunrise is at 07:14 and sunset at 17:18 CET.

January has the least sunshine of the year in Posillipo, with an average of 5.6h of sunshine.

In January, the average sunshine duration in Posillipo, Italy, is 5.6h.

The months with the lowest UV index in Posillipo, Italy, are January, February and December, with an average maximum UV index of 3.

In Posillipo, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

13.7°C

12.3°C

12.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.4km/h

14.6km/h

15.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

16.6

13.8

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Posillipo, Italy

Average high temperature in January: 12.3°C

The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (12.3°C).

Average low temperature in January: 8°C

The month with the highest average low temperature is August (22.8°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).

Average pressure in January
Posillipo, Italy

Average pressure in January: 1016.2mbar

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 January
Posillipo, Italy

Average wind speed in January: 13.5km/h

The windiest month (with the highest average wind speed) is February (14.2km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).

Average humidity in January
Posillipo, Italy

Average humidity in January: 73%

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is August (61%).

Average rainfall in January
Posillipo, Italy

Average rainfall in January: 54mm

The wettest month (with the highest rainfall) is November (115mm).
The driest month (with the least rainfall) is August (9mm).

Average rainfall days in January
Posillipo, Italy

Average rainfall days in January: 13.6 days

The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (4.9 days).

Average snowfall in January
Posillipo, 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
Posillipo, Italy

Average snowfall days in January: 0.3 days

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in January /
Average sunshine in January
Posillipo, Italy

Average daylight in January: 9h and 36min

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 36min

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
Posillipo, Italy

Average sunshine days in January: 15 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (13.8 days).

Average UV index in January
Posillipo, Italy

Average UV index in January: 3

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in January
Posillipo, Italy

Average cloud cover in January: 40

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in January
Posillipo, 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).