Weather in Graz in August 2025
- August is usually the hottest month of the year in Graz;
Average weather
Average temperature in Graz in August
Going from a maximum of +34°C during the day to a minimum of +9°C during the night, the temperature in August averages around +26°C.
The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +24°C to +22°C.
Is Graz warm or cold in August?
Graz is typically warm in August.
Maximum temperatures go up compared to the previous month from +25°C to +25°C. The minimum temperature also goes up from +14°C to +14°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Graz, here is the comparison with other months:
Climate in Graz in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +25°C | +25°C | +20°C | ||||
| Min. temperature | ||||||
| +7°C | +5°C | 0°C | ||||
| Max. temperature | ||||||
| +39°C | +38°C | +31°C | ||||
| Rainfall | ||||||
| 123 mm | 127 mm | 96 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 70% | 73% | 77% | ||||
| Air pressure | ||||||
| 1015 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 5 | 6 | 6 | ||||
| Cloudy days | ||||||
| 4 | 5 | 9 | ||||
| Rainy days | ||||||
| 12 | 13 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. The temperature levels stay the same in the area of +25°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 123 mm to 127 mm. Humidity rises from 70% to 73%. The average wind speed doesn’t change much during August, staying around 1 m/s. The good news is there are likely to be more sunny days in August, from 5 to 6.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Graz is gradually increasing during August, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last August in Graz?
Climate Change over Years
The climate in Graz in August has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+12°C) and the highest in 2022 (+17°C). The driest year was 2003 with only 565 mm of rainfall, and the wettest year was 2014 with 1792 mm.
FAQ
Is August a good time to visit Graz?
Can you sunbathe in Graz in August?
Is Graz rainy in August?
Is it sunny in Graz in August?
Other cities in Austria
Monthly weather in Graz
Source of the data
For this page, we’ve looked at the typical weather in Graz, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.