Lyon weather in May
May in Lyon: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Lyon · #104 of 604 destinations to visit in May · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Lyon climate normals — May
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 51°F | |
| Feels like (high) | 19°C / 66°F | |
| Rainfall | 90 mm / 3.5 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 11 h/day | |
| Daylight | 14.9 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Lyon in May — FAQ
- Is May a good time to visit Lyon?
- May in Lyon: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Lyon on SeasonMap's comfort score (89/100).
- What is the weather like in Lyon in May?
- In May, Lyon averages a daily high of 20.5°C and a low of 10.8°C, with about 89.7 mm of rain over roughly 12.6 rainy days.
- What is the air quality in Lyon in May?
- Lyon has a mean US Air Quality Index of about 48 in May.