Climate averages 1991–2020
Como weather
in December.
A cold, moderately wet month: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Como: daytime highs average 7.7°C and nights cool to about 0.7°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 78 mm of rain on roughly 7 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 45 min on an average December day.
The nearest other city in this atlas is Varese (20 km away). In December its highs average 6.4°C, 1.3°C cooler than Como, with 80 mm of rain.
Among the 79 cities listed in Italy, Como ranks joint 59th of 79 for the warmest December highs and joint 41st of 79 for the driest December (rainfall, lowest first). The mean December high of those 79 cities is 10.5°C; Como is 2.7°C cooler than that mean.
From December to January, average highs fall by 0.4°C to 7.3°C, and monthly rainfall falls from 78 mm to 64 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Como climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C-0.2°C | -0.2°C | 64 | 6.6 | 9.19 h |
| February | 9.0°C0.1°C | 0.1°C | 64 | 7.0 | 10.310 h |
| March | 13.3°C3.2°C | 3.2°C | 83 | 8.4 | 11.912 h |
| April | 16.7°C6.9°C | 6.9°C | 122 | 12.1 | 13.514 h |
| May | 20.9°C11.3°C | 11.3°C | 137 | 13.5 | 14.915 h |
| June | 25.0°C15.4°C | 15.4°C | 142 | 12.8 | 15.716 h |
| July | 27.3°C18.1°C | 18.1°C | 112 | 11.3 | 15.315 h |
| August | 26.8°C18.3°C | 18.3°C | 146 | 12.4 | 14.114 h |
| September | 22.0°C14.4°C | 14.4°C | 155 | 10.4 | 12.613 h |
| October | 16.9°C10.3°C | 10.3°C | 161 | 10.7 | 11.011 h |
| November | 11.7°C5.3°C | 5.3°C | 172 | 10.6 | 9.510 h |
| December, selected | 7.7°C0.7°C | 0.7°C | 78 | 7.3 | 8.79 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Varese in DecemberItaly · 20 kmHigh 6.4°C · Low -0.2°C · 80 mm rain
- Busto Arsizio in DecemberItaly · 28 kmHigh 7.1°C · Low -0.1°C · 74 mm rain
- Monza in DecemberItaly · 29 kmHigh 7.4°C · Low -0.4°C · 73 mm rain
- Cinisello Balsamo in DecemberItaly · 30 kmHigh 7.4°C · Low -0.1°C · 73 mm rain
- Milan in DecemberItaly · 39 kmHigh 7.1°C · Low -0.1°C · 73 mm rain
- Bergamo in DecemberItaly · 47 kmHigh 7.3°C · Low -1.3°C · 78 mm rain
- Novara in DecemberItaly · 54 kmHigh 7.0°C · Low -0.6°C · 79 mm rain
- Brescia in DecemberItaly · 93 kmHigh 6.9°C · Low 0.9°C · 68 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Como) is explained once on the Como year overview and on the Sources, method and limits page.