Frankfurt weather in May
May in Frankfurt: nice, a little rain — an excellent time to visit.
#5 of 12 months in Frankfurt · #230 of 604 destinations to visit in May · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Frankfurt climate normals — May
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 9°C / 47°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 53 mm / 2.1 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 15.4 h | |
| Wind | 15 km/h / 10 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Frankfurt in May — FAQ
- Is May a good time to visit Frankfurt?
- May in Frankfurt: nice, a little rain — an excellent time to visit. It ranks #5 of 12 months for Frankfurt on SeasonMap's comfort score (84/100).
- What is the weather like in Frankfurt in May?
- In May, Frankfurt averages a daily high of 18.2°C and a low of 8.5°C, with about 52.9 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Frankfurt in May?
- Frankfurt has a mean US Air Quality Index of about 51 in May.