Climate averages 1991–2020
Graz weather
in August.
A warm, moderately wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Graz: daytime highs average 24.0°C and nights cool to about 13.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 89 mm of rain on roughly 12 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 14 min on an average August day.
The nearest other city in this atlas is Maribor (59 km away). In August its highs average 25.6°C, 1.5°C warmer than Graz, with 108 mm of rain.
Among the 6 cities listed in Austria, Graz ranks 4th of 6 for the warmest August highs and 3rd of 6 for the driest August (rainfall, lowest first). The mean August high of those 6 cities is 24.2°C; Graz is 0.2°C cooler than that mean.
From August to September, average highs fall by 4.8°C to 19.2°C, and monthly rainfall falls from 89 mm to 83 mm.
The annual picture
August 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
Graz climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.4°C-5.3°C | -5.3°C | 27 | 6.2 | 9.09 h |
| February | 5.6°C-4.3°C | -4.3°C | 33 | 7.0 | 10.210 h |
| March | 10.0°C-0.6°C | -0.6°C | 45 | 8.4 | 11.912 h |
| April | 15.0°C3.6°C | 3.6°C | 54 | 9.9 | 13.614 h |
| May | 19.0°C8.3°C | 8.3°C | 85 | 13.0 | 15.015 h |
| June | 22.6°C11.9°C | 11.9°C | 90 | 13.5 | 15.816 h |
| July | 24.4°C13.8°C | 13.8°C | 84 | 12.8 | 15.515 h |
| August, selected | 24.0°C13.8°C | 13.8°C | 89 | 11.8 | 14.214 h |
| September | 19.2°C9.7°C | 9.7°C | 83 | 10.1 | 12.613 h |
| October | 14.3°C5.4°C | 5.4°C | 64 | 9.3 | 10.911 h |
| November | 8.6°C1.2°C | 1.2°C | 59 | 8.5 | 9.49 h |
| December | 3.6°C-4.0°C | -4.0°C | 45 | 7.8 | 8.69 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
August in nearby cities
- Maribor in AugustSlovenia · 59 kmHigh 25.6°C · Low 16.1°C · 108 mm rain
- Szombathely in AugustHungary · 91 kmHigh 25.7°C · Low 16.2°C · 78 mm rain
- Klagenfurt am Wörthersee in AugustAustria · 99 kmHigh 24.1°C · Low 15.3°C · 152 mm rain
- Ljubljana in AugustSlovenia · 134 kmHigh 25.2°C · Low 15.9°C · 112 mm rain
- Vienna in AugustAustria · 145 kmHigh 25.7°C · Low 16.0°C · 71 mm rain
- Zagreb in AugustCroatia · 145 kmHigh 27.4°C · Low 17.3°C · 81 mm rain
- Linz in AugustAustria · 163 kmHigh 24.3°C · Low 15.3°C · 86 mm rain
- Bratislava in AugustSlovakia · 173 kmHigh 26.1°C · Low 16.4°C · 67 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 Graz) is explained once on the Graz year overview and on the Sources, method and limits page.