Graz weather in May
May in Graz: nice, rainy, with clean air — an excellent time to visit.
#5 of 12 months in Graz · #463 of 897 destinations to visit in May · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Graz in May
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Graz climate normals — May
| Daytime high | 18°C / 64°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Rainfall | 108 mm / 4.2 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 15.1 h | |
| Wind | 12 km/h / 8 mph | |
| Snowfall | 0.2 cm / 0.1 in | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Graz in May — FAQ
- Is May a good time to visit Graz?
- May in Graz: nice, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for Graz on SeasonMap's comfort score (82/100).
- What is the weather like in Graz in May?
- In May, Graz averages a daily high of 17.6°C and a low of 7.7°C, with about 107.5 mm of rain over roughly 16.4 rainy days.
- What is the air quality in Graz in May?
- Graz has a mean US Air Quality Index of about 44 in May.