Click on a day for an hourly weather forecast
The temperatures in Graz in May are quite cold with temperatures between 9°C and 20°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Graz. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Graz in May 2025.
If you’re planning to visit Graz in the near future, we highly recommend that you review the 14 day weather forecast for Graz before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -3° | 5 | 15 | 11 | 41 mm | Awful | Graz in January |
| February | 6° / -2° | 6 | 14 | 9 | 70 mm | Awful | Graz in February |
| March | 11° / 1° | 5 | 22 | 4 | 58 mm | Bad | Graz in March |
| April | 16° / 5° | 5 | 24 | 1 | 71 mm | Good | Graz in April |
| May | 20° / 9° | 10 | 21 | 0 | 150 mm | Ok | Graz in May |
| June | 24° / 13° | 10 | 20 | 0 | 154 mm | Good | Graz in June |
| July | 26° / 15° | 10 | 21 | 0 | 144 mm | Good | Graz in July |
| August | 26° / 14° | 7 | 24 | 0 | 131 mm | Good | Graz in August |
| September | 21° / 11° | 6 | 24 | 0 | 113 mm | Good | Graz in September |
| October | 16° / 6° | 5 | 26 | 0 | 73 mm | Good | Graz in October |
| November | 10° / 3° | 5 | 23 | 2 | 86 mm | Bad | Graz in November |
| December | 5° / -2° | 5 | 20 | 7 | 49 mm | Awful | Graz in December |