Cluj-Napoca weather in May
May in Cluj-Napoca: nice, rainy, with clean air — an excellent time to visit.
#5 of 12 months in Cluj-Napoca · #416 of 897 destinations to visit in May · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cluj-Napoca in May
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Cluj-Napoca climate normals — May
| Daytime high | 19°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 47°F | |
| Rainfall | 108 mm / 4.2 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 15.1 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 0.4 cm / 0.2 in | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cluj-Napoca in May — FAQ
- Is May a good time to visit Cluj-Napoca?
- May in Cluj-Napoca: nice, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for Cluj-Napoca on SeasonMap's comfort score (83/100).
- What is the weather like in Cluj-Napoca in May?
- In May, Cluj-Napoca averages a daily high of 18.6°C and a low of 8.2°C, with about 107.8 mm of rain over roughly 17 rainy days.
- What is the air quality in Cluj-Napoca in May?
- Cluj-Napoca has a mean US Air Quality Index of about 47 in May.