Bolzano climate
Bolzano (Trentino-Alto Adige, Italy) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 13 °C55 °F, and about 929 mm37 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Bolzano climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 643 | −327 | 235 | 341.4 |
| Feb | 846 | −228 | 337 | 361.4 |
| Mar | 1355 | 337 | 846 | 461.8 |
| Apr | 1864 | 846 | 1355 | 652.5 |
| May | 2272 | 1253 | 1763 | 973.8 |
| Jun | 2780 | 1661 | 2171 | 1074.2 |
| Jul | 2984 | 1864 | 2374 | 1144.5 |
| Aug | 2882 | 1763 | 2373 | 1265.0 |
| Sep | 2475 | 1355 | 1865 | 883.5 |
| Oct | 1966 | 949 | 1458 | 873.4 |
| Nov | 1355 | 541 | 948 | 823.2 |
| Dec | 846 | −131 | 338 | 461.8 |
| Year | 2984 | −327 | 1355 | 92937 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 88% | 68% | 1.6 | 8:58 |
| Feb | 87% | 70% | 2.5 | 10:15 |
| Mar | 80% | 70% | 3.7 | 11:46 |
| Apr | 76% | 73% | 4.4 | 13:30 |
| May | 76% | 77% | 4.9 | 14:59 |
| Jun | 75% | 73% | 5.7 | 15:48 |
| Jul | 74% | 67% | 5.7 | 15:28 |
| Aug | 77% | 66% | 4.9 | 14:10 |
| Sep | 79% | 65% | 3.9 | 12:28 |
| Oct | 82% | 67% | 2.6 | 10:48 |
| Nov | 85% | 69% | 1.6 | 9:19 |
| Dec | 87% | 68% | 1.3 | 8:36 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Bolzano is like
The warmest month is July, with an average high of 29 °C84 °F and a low of 18 °C64 °F. The coldest is January, when highs average 6 °C43 °F and lows −3 °C27 °F. Seasons are strongly marked: the warmest month is on average 21.5 °C38.8 °F warmer than the coldest.
Annual precipitation is moderate at about 929 mm37 in. The wettest three-month stretch is June–August, which brings 37% of the annual total. The wettest month is August (126 mm5.0 in), the driest is January (34 mm1.4 in).
Relative humidity ranges from 74% in July to 88% in January. The clearest skies (lowest average cloud amount, 65%) are typical of September. Average wind speed near the ground ranges from 1 km/h (1 mph) in June to 3 km/h (2 mph) in January. Daylight lasts from about 8.6 hours in December to 15.8 hours in June.
Best time to visit Bolzano
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April–June and September. Average highs then reach 18 °C64 °F to 27 °C80 °F. Precipitation is 65 mm2.5 in to 107 mm4.2 in per month.
The most challenging month is January, which is cold, with average highs of 6 °C43 °F.
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Bolzano
- Winter (December–February) — highs 643 to 8 °C46 °F, lows −327 to −1 °C31 °F, about 39 mm1.5 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1355 to 22 °C72 °F, lows 337 to 12 °C53 °F, about 69 mm2.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2780 to 29 °C84 °F, lows 1661 to 18 °C64 °F, about 116 mm4.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1355 to 24 °C75 °F, lows 541 to 13 °C55 °F, about 86 mm3.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Bolzano compares
The nearest larger place is Trento, about 50 km to the south. Compared with it, Bolzano is on average 0.7 °C1.2 °F cooler. It receives 6% less precipitation (929 mm37 in vs 991 mm39 in). The difference is largest in February (1.5 °C2.8 °F cooler).
World Climates covers 37 places in Italy. By annual mean temperature, Bolzano is the 37th warmest of them. By annual precipitation, it is the 7th wettest. See all of them on the Italy climate page.
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Lugano (Switzerland, Cfa), Nazran (Russia, Cfa) and Tuzla (Bosnia and Herzegovina, Cfa).
Nearby places
- Climate in Trento 50 km · 14 °C56 °F · 991 mm39 in
- Climate in Innsbruck 86 km · 10 °C50 °F · 1,347 mm53 in
- Climate in Vicenza 106 km · 15 °C58 °F · 865 mm34 in
- Climate in Verona 120 km · 15 °C58 °F · 865 mm34 in
- Climate in Padua 128 km · 15 °C58 °F · 879 mm35 in
- Climate in Mestre 131 km · 15 °C59 °F · 943 mm37 in
- Climate in Brescia 137 km · 14 °C57 °F · 918 mm36 in
- Climate in Udine 153 km · 14 °C56 °F · 1,074 mm42 in
Frequently asked questions
What is the warmest month in Bolzano?
July is the warmest month in Bolzano. Its average high is 29 °C (84 °F) and its average low is 18 °C (64 °F).
What is the coldest month in Bolzano?
January is the coldest month. Its average high is 6 °C (43 °F) and its average low is -3 °C (27 °F).
When does it rain the most in Bolzano?
August is the wettest month with about 126 mm (5.0 in) of precipitation. January is the driest with about 34 mm (1.4 in).
What is the best time to visit Bolzano?
Judging by long-term averages, the most comfortable months are April–June and September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,645 m, while Bolzano lies at about 262 m. Temperatures on this page were therefore adjusted by +9 °C16.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.