Country Overview For Italy
The climate in Italy is typically predominantly Mediterranean; Alpine in far north; hot, dry in south. The terrain: mostly rugged and mountainous; some plains, coastal lowlands. For Rome in January the daily average maximum temperatures is 7°C with the average minimum 0°C, while in June the average maximum is 28°C with a minimum of 17°C. The wettest month for Rome is July with an average of 101.4mm of precipitation falling while the driest month is February with 22.3mm falling.
HISTORICAL MONTHLY AVERAGES FOR DECEMBER
The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The climate profile is taken from closest available data source to Monza Circuit.
Throughout the month of December daytime temperatures will generally reach highs of around 7°C that's about 45°F. At night the average minimum temperature drops down to around 0°C, that's 31°F.
In recent times the highest recorded temperature in December has been 18°C that's 65°F, with the lowest recorded temperature -11°C, about 12°F.
The average daily relative humidity for December is around 83%.
The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.
Comfort Levels: Given average maximum temperatures and humidity levels generally you should not anticipate any discomfort from heat (see heat index for more information).
The average monthly amount of precipitation has been recorded at around 51 mm, that's 2 inches. Throughout the month you can expect to see rain or drizzle falling on 10 days of the month, with snow falling on 2 days.
Estimated Hours of Sunshine per Day
We calculate sunshine hours per day using our past forecast data. For December expect the sun to shine for an average of 5 hours per day. This represents the average number of hours in the daytime that the sun is visible and not obscured by cloud e.g. the average number of hours the sun is actually out and shining. Note we calculate hours of sunshine per day using our past forecast data, not observation data, thus it is an estimate and not actual.
The average daily wind speed in December has been around 4 km/h, that’s the equivalent to about 3 mph, or 2 knots. In recent years the maximum sustained wind speed has reached 74 km/h, that’s the equivalent of around 46 mph, or 40 knots.
On average the month of December is affected by foggy conditions on 15 days.
YEARLY TRENDS: WEATHER AVERAGES & EXTREMES
The following charts show yearly weather trends with information on monthly weather averages and extremes.
The chart below plots the average high and low temperature for each month of the year. It also shows the maximum and minimum recorded temperatures.
The chart below plots the average monthly precipitation amount.
The chart below plots the average number of days in any month that you can expect to see rain falling.
The chart below plots the average number of days in any month that you can expect to see snow falling.
The chart below plots the average daily wind speed you can expect for any month. It also shows the maximum recorded sustained wind speed for each month.