Climate averages 1991–2020
Bolzano weather
in September.
A warm, wet month: the 4th warmest and the 8th 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.
September is a warm month in Bolzano: daytime highs average 22.1°C and nights cool to about 13.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 93 mm of rain on roughly 11 days, which makes September a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 36 min on an average September day.
The nearest other city in this atlas is Trento (50 km away, marked approximate). In September its highs average 21.7°C, about as warm as Bolzano, with 121 mm of rain.
Among the 79 cities listed in Italy, Bolzano ranks 73rd of 79 for the warmest September highs and joint 50th of 79 for the driest September (rainfall, lowest first). The mean September high of those 79 cities is 24.3°C; Bolzano is 2.2°C cooler than that mean.
From September to October, average highs fall by 4.6°C to 17.5°C, and monthly rainfall rises from 93 mm to 129 mm.
The annual picture
September 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 | 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, selected | 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
September in nearby cities
- Trento (approximate) in SeptemberItaly · 50 kmHigh 21.7°C · Low 14.9°C · 121 mm rain
- Innsbruck (approximate) in SeptemberAustria · 86 kmHigh 19.5°C · Low 9.6°C · 139 mm rain
- Vicenza in SeptemberItaly · 106 kmHigh 23.1°C · Low 13.8°C · 113 mm rain
- Treviso in SeptemberItaly · 115 kmHigh 22.8°C · Low 14.0°C · 120 mm rain
- Verona in SeptemberItaly · 120 kmHigh 23.6°C · Low 15.1°C · 105 mm rain
- Padua in SeptemberItaly · 128 kmHigh 23.6°C · Low 14.8°C · 107 mm rain
- Mestre in SeptemberItaly · 131 kmHigh 23.0°C · Low 15.5°C · 123 mm rain
- Brescia in SeptemberItaly · 137 kmHigh 22.2°C · Low 14.6°C · 112 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.