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Bolzano, Italy climate
Cfb Oceanic / temperate
Bolzano has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 27°C, while the coldest is January averaging around −3°C at night. Around 915 mm of precipitation falls each year, peaking in August (139 mm) and easing off in February (36 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsBolzano climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 7 | 13 | 17 | 22 | 25 | 27 | 26 | 21 | 16 | 9 | 4 |
| Avg temp (°C) | 0 | 3 | 7 | 11 | 16 | 19 | 20 | 20 | 16 | 11 | 5 | 1 |
| Avg low (°C) | −3 | −2 | 1 | 5 | 9 | 13 | 14 | 14 | 10 | 6 | 2 | −2 |
| Precipitation (mm) | 47 | 36 | 54 | 56 | 82 | 115 | 125 | 139 | 81 | 69 | 59 | 53 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 7 | 13 | 17 | 22 | 25 |
| Avg temp (°C) | 0 | 3 | 7 | 11 | 16 | 19 |
| Avg low (°C) | −3 | −2 | 1 | 5 | 9 | 13 |
| Precipitation (mm) | 47 | 36 | 54 | 56 | 82 | 115 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 26 | 21 | 16 | 9 | 4 |
| Avg temp (°C) | 20 | 20 | 16 | 11 | 5 | 1 |
| Avg low (°C) | 14 | 14 | 10 | 6 | 2 | −2 |
| Precipitation (mm) | 125 | 139 | 81 | 69 | 59 | 53 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 12 | 12 | 15 | 17 | 17 | 16 | 13 | 12 | 12 | 13 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.3 | 3 | 4 | 3 | — | — | — | — |
| Days with low ≤ 0°C (days) | 25 | 20 | 11 | 2 | 0.0 | — | — | — | 0.0 | 2 | 11 | 22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 12 | 12 | 15 | 17 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.3 | 3 |
| Days with low ≤ 0°C (days) | 25 | 20 | 11 | 2 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 16 | 13 | 12 | 12 | 13 |
| Days with high ≥ 32°C (days) | 4 | 3 | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 0.0 | 2 | 11 | 22 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 71 | 70 | 72 | 70 | 66 | 63 | 65 | 66 | 70 | 70 |
| Clear days (≤ 30% cloud) | 4 | 4 | 3 | 4 | 3 | 3 | 5 | 5 | 6 | 5 | 3 | 3 |
| Partly cloudy days (30–70%) | 10 | 8 | 9 | 8 | 8 | 9 | 9 | 10 | 9 | 10 | 10 | 10 |
| Cloudy days (≥ 70%) | 17 | 17 | 18 | 18 | 19 | 18 | 17 | 15 | 16 | 16 | 17 | 18 |
| Relative humidity (%) | 89 | 88 | 84 | 79 | 79 | 79 | 79 | 80 | 83 | 84 | 88 | 89 |
| Wind speed (km/h) | 2.0 | 1.9 | 1.7 | 1.4 | 1.2 | 1.1 | 1.2 | 1.3 | 1.3 | 1.4 | 1.5 | 1.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 71 | 70 | 72 | 70 |
| Clear days (≤ 30% cloud) | 4 | 4 | 3 | 4 | 3 | 3 |
| Partly cloudy days (30–70%) | 10 | 8 | 9 | 8 | 8 | 9 |
| Cloudy days (≥ 70%) | 17 | 17 | 18 | 18 | 19 | 18 |
| Relative humidity (%) | 89 | 88 | 84 | 79 | 79 | 79 |
| Wind speed (km/h) | 2.0 | 1.9 | 1.7 | 1.4 | 1.2 | 1.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 63 | 65 | 66 | 70 | 70 |
| Clear days (≤ 30% cloud) | 5 | 5 | 6 | 5 | 3 | 3 |
| Partly cloudy days (30–70%) | 9 | 10 | 9 | 10 | 10 | 10 |
| Cloudy days (≥ 70%) | 17 | 15 | 16 | 16 | 17 | 18 |
| Relative humidity (%) | 79 | 80 | 83 | 84 | 88 | 89 |
| Wind speed (km/h) | 1.2 | 1.3 | 1.3 | 1.4 | 1.5 | 1.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Innsbruck, a weather station, about 86 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.