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 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
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderate 13.5°C (56.3°F) in November to a frosty 9.4°C (48.9°F). San Romano's average low-temperature is measured at a wintry 3.3°C (37.9°F) during December.Humidity
In San Romano, the average relative humidity in December is 80%.Rainfall
In San Romano, during December, the rain falls for 11.9 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, in San Romano, there are 136.9 rainfall days, and 394mm (15.51") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in San Romano, Italy. December is the first month it typically snows in San Romano. Throughout December, in the average 0.4 snowfall days, it receives 6mm (0.24") of snow. Throughout the year, in San Romano, Italy, there are 2.3 snowfall days, and 26mm (1.02") of snow is accumulated.Daylight
The month with the shortest days in San Romano is December, with an average of 9h and 0min of daylight.On the first day of December in San Romano, sunrise is at 07:31 and sunset at 16:41. On the last day of the month, sunrise is at 07:50 and sunset at 16:49 CET.
Sunshine
In December, the average sunshine in San Romano is 5.5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in San Romano. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in San Romano in December?
What is the average humidity in December in San Romano?
How much does it rain in San Romano in December?
When does it start snowing in San Romano?
What is the month with the shortest days in San Romano?
How many hours of daylight does San Romano have in December?
When are sunrise and sunset in December in San Romano?
How many hours of sunshine does San Romano have in December?
When is the lowest UV index in San Romano?
What is the UV index reading in December in San Romano?
Average temperature in December
San Romano, Italy
- Average high temperature in December: 9.4°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in December: 3.3°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
San Romano, 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 July (1013.5mbar).
Average wind speed in December
San Romano, Italy
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest month (with the lowest average wind speed) is August (7.2km/h).
Average humidity in December
San Romano, Italy
- Average humidity in December: 80%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is August (63%).
Average rainfall in December
San Romano, Italy
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is July (20mm).
Average rainfall days in December
San Romano, Italy
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in December
San Romano, Italy
- Average snowfall in December: 6mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
San Romano, Italy
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
San Romano, Italy
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
San Romano, Italy
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is August (20.7 days).
The month with the least sunshine days is February (13 days).
Average UV index in December
San Romano, Italy
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
San Romano, Italy
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in December
San Romano, Italy
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and December (9km).
The months with the lowest visibility are January, October and November (8km).
