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Graz, Austria climate
Cfb Oceanic / temperate
Graz 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. Precipitation totals about 847 mm a year and is strongly seasonal — August alone averages 128 mm while January barely receives 20 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 countsGraz climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 7 | 12 | 17 | 22 | 25 | 27 | 26 | 21 | 16 | 9 | 4 |
| Avg temp (°C) | 1 | 3 | 7 | 12 | 16 | 19 | 21 | 21 | 16 | 11 | 6 | 1 |
| Avg low (°C) | −3 | −2 | 2 | 6 | 10 | 14 | 16 | 15 | 11 | 7 | 3 | −2 |
| Precipitation (mm) | 20 | 29 | 34 | 51 | 93 | 120 | 123 | 128 | 93 | 63 | 54 | 40 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 7 | 12 | 17 | 22 | 25 |
| Avg temp (°C) | 1 | 3 | 7 | 12 | 16 | 19 |
| Avg low (°C) | −3 | −2 | 2 | 6 | 10 | 14 |
| Precipitation (mm) | 20 | 29 | 34 | 51 | 93 | 120 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 26 | 21 | 16 | 9 | 4 |
| Avg temp (°C) | 21 | 21 | 16 | 11 | 6 | 1 |
| Avg low (°C) | 16 | 15 | 11 | 7 | 3 | −2 |
| Precipitation (mm) | 123 | 128 | 93 | 63 | 54 | 40 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 7 | 8 | 10 | 13 | 14 | 14 | 12 | 11 | 10 | 10 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 2 | 2 | 2 | 0.0 | — | — | — |
| Days with low ≤ 0°C (days) | 25 | 20 | 11 | 2 | — | — | — | — | — | 2 | 8 | 22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 7 | 8 | 10 | 13 | 14 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.1 | 2 |
| Days with low ≤ 0°C (days) | 25 | 20 | 11 | 2 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 12 | 11 | 10 | 10 | 8 |
| Days with high ≥ 32°C (days) | 2 | 2 | 0.0 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 2 | 8 | 22 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 70 | 71 | 70 | 72 | 72 | 67 | 63 | 67 | 67 | 72 | 70 |
| Clear days (≤ 30% cloud) | 3 | 3 | 3 | 4 | 3 | 3 | 4 | 5 | 5 | 4 | 2 | 3 |
| Partly cloudy days (30–70%) | 11 | 8 | 9 | 9 | 9 | 9 | 10 | 11 | 8 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 17 | 17 | 19 | 17 | 19 | 18 | 17 | 15 | 17 | 17 | 18 | 18 |
| Relative humidity (%) | 87 | 83 | 78 | 74 | 71 | 68 | 65 | 65 | 73 | 81 | 88 | 88 |
| Wind speed (mph) | 3.4 | 4.0 | 4.4 | 4.3 | 4.2 | 3.8 | 3.6 | 3.3 | 3.5 | 3.3 | 3.2 | 3.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 70 | 71 | 70 | 72 | 72 |
| Clear days (≤ 30% cloud) | 3 | 3 | 3 | 4 | 3 | 3 |
| Partly cloudy days (30–70%) | 11 | 8 | 9 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 17 | 17 | 19 | 17 | 19 | 18 |
| Relative humidity (%) | 87 | 83 | 78 | 74 | 71 | 68 |
| Wind speed (mph) | 3.4 | 4.0 | 4.4 | 4.3 | 4.2 | 3.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 63 | 67 | 67 | 72 | 70 |
| Clear days (≤ 30% cloud) | 4 | 5 | 5 | 4 | 2 | 3 |
| Partly cloudy days (30–70%) | 10 | 11 | 8 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 17 | 15 | 17 | 17 | 18 | 18 |
| Relative humidity (%) | 65 | 65 | 73 | 81 | 88 | 88 |
| Wind speed (mph) | 3.6 | 3.3 | 3.5 | 3.3 | 3.2 | 3.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Graz, a weather station, about 2 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.