Climate averages 1991–2020

Bolzano 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.

Approximate: the model cell is 526 m higher than the city, so the temperatures are adjusted up by 3.4°C. For places not marked Approximate, the cell is within 400 m of the place's elevation.

Average high 7.1°C Daytime mean, December
Average low -0.6°C Night-time mean, December
Rainfall 71 mm 9 days with ≥1 mm
Daylight 9 h Sunrise to sunset, per day
Every month in Bolzano · average highYear overview

December is a cold month in Bolzano: daytime highs average 7.1°C and nights cool to about -0.6°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 71 mm of rain on roughly 9 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 40 min on an average December day.

The nearest other city in this atlas is Trento (50 km away, marked approximate). In December its highs average 7.5°C, about as warm as Bolzano, with 78 mm of rain.

Among the 79 cities listed in Italy, Bolzano ranks joint 69th of 79 for the warmest December highs and joint 28th of 79 for the driest December (rainfall, lowest first). The mean December high of those 79 cities is 10.5°C; Bolzano is 3.4°C cooler than that mean.

From December to January, average highs fall by 0.8°C to 6.3°C, and monthly rainfall falls from 71 mm to 52 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Bolzano climate table

1991–2020
Monthly climate averages for Bolzano, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 6.3°C-2.8°C-2.8°C528.19.09 h
February 8.4°C-0.5°C-0.5°C528.710.310 h
March 12.6°C3.8°C3.8°C7210.311.912 h
April 16.4°C7.5°C7.5°C9613.013.514 h
May 20.9°C11.9°C11.9°C10813.915.015 h
June 24.5°C15.5°C15.5°C9111.815.716 h
July 26.6°C17.3°C17.3°C8110.215.415 h
August 26.4°C17.3°C17.3°C8511.114.214 h
September 22.1°C13.7°C13.7°C9310.812.613 h
October 17.5°C9.6°C9.6°C12913.310.911 h
November 11.6°C4.6°C4.6°C12912.29.59 h
December, selected 7.1°C-0.6°C-0.6°C719.18.79 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

Distance from Bolzano

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bolzano) is explained once on the Bolzano year overview and on the Sources, method and limits page.