Climate averages 1991–2020
Graz weather
in May.
A mild, moderately wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Graz: daytime highs average 19.0°C and nights cool to about 8.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 85 mm of rain on roughly 13 days, which makes May a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 02 min on an average May day.
The nearest other city in this atlas is Maribor (59 km away). In May its highs average 20.4°C, 1.3°C warmer than Graz, with 99 mm of rain.
Among the 6 cities listed in Austria, Graz ranks 3rd of 6 for the warmest May highs and 2nd of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 18.9°C; Graz is 0.1°C warmer than that mean.
From May to June, average highs rise by 3.5°C to 22.6°C, and monthly rainfall rises from 85 mm to 90 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Maribor in MaySlovenia · 59 kmHigh 20.4°C · Low 10.6°C · 99 mm rain
- Szombathely in MayHungary · 91 kmHigh 20.2°C · Low 10.4°C · 74 mm rain
- Klagenfurt am Wörthersee in MayAustria · 99 kmHigh 18.9°C · Low 9.4°C · 119 mm rain
- Ljubljana in MaySlovenia · 134 kmHigh 19.3°C · Low 9.7°C · 103 mm rain
- Vienna in MayAustria · 145 kmHigh 19.9°C · Low 10.3°C · 72 mm rain
- Zagreb in MayCroatia · 145 kmHigh 21.2°C · Low 10.8°C · 87 mm rain
- Linz in MayAustria · 163 kmHigh 19.1°C · Low 9.5°C · 88 mm rain
- Bratislava in MaySlovakia · 173 kmHigh 20.4°C · Low 10.6°C · 68 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.