Climate averages 1991–2020
Bolzano weather
in May.
A mild, wet month: the 5th warmest and the 10th 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.
May is a mild month in Bolzano: daytime highs average 20.9°C and nights cool to about 11.9°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 108 mm of rain on roughly 14 days, which makes May a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 59 min on an average May day.
The nearest other city in this atlas is Trento (50 km away, marked approximate). In May its highs average 20.4°C, about as warm as Bolzano, with 132 mm of rain.
Among the 79 cities listed in Italy, Bolzano ranks joint 60th of 79 for the warmest May highs and 66th of 79 for the driest May (rainfall, lowest first). The mean May high of those 79 cities is 21.8°C; Bolzano is 0.9°C cooler than that mean.
From May to June, average highs rise by 3.7°C to 24.5°C, and monthly rainfall falls from 108 mm to 91 mm.
The annual picture
May 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
Bolzano climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.3°C-2.8°C | -2.8°C | 52 | 8.1 | 9.09 h |
| February | 8.4°C-0.5°C | -0.5°C | 52 | 8.7 | 10.310 h |
| March | 12.6°C3.8°C | 3.8°C | 72 | 10.3 | 11.912 h |
| April | 16.4°C7.5°C | 7.5°C | 96 | 13.0 | 13.514 h |
| May, selected | 20.9°C11.9°C | 11.9°C | 108 | 13.9 | 15.015 h |
| June | 24.5°C15.5°C | 15.5°C | 91 | 11.8 | 15.716 h |
| July | 26.6°C17.3°C | 17.3°C | 81 | 10.2 | 15.415 h |
| August | 26.4°C17.3°C | 17.3°C | 85 | 11.1 | 14.214 h |
| September | 22.1°C13.7°C | 13.7°C | 93 | 10.8 | 12.613 h |
| October | 17.5°C9.6°C | 9.6°C | 129 | 13.3 | 10.911 h |
| November | 11.6°C4.6°C | 4.6°C | 129 | 12.2 | 9.59 h |
| December | 7.1°C-0.6°C | -0.6°C | 71 | 9.1 | 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
May in nearby cities
- Trento (approximate) in MayItaly · 50 kmHigh 20.4°C · Low 12.6°C · 132 mm rain
- Innsbruck (approximate) in MayAustria · 86 kmHigh 17.7°C · Low 7.3°C · 177 mm rain
- Vicenza in MayItaly · 106 kmHigh 21.8°C · Low 11.5°C · 117 mm rain
- Treviso in MayItaly · 115 kmHigh 21.4°C · Low 11.7°C · 114 mm rain
- Verona in MayItaly · 120 kmHigh 22.3°C · Low 12.0°C · 111 mm rain
- Padua in MayItaly · 128 kmHigh 22.1°C · Low 12.4°C · 97 mm rain
- Mestre in MayItaly · 131 kmHigh 21.3°C · Low 13.0°C · 93 mm rain
- Brescia in MayItaly · 137 kmHigh 21.0°C · Low 10.7°C · 102 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 Bolzano) is explained once on the Bolzano year overview and on the Sources, method and limits page.