Climate averages 1991–2020
Weather in Switzerland in May
In May, average daytime highs across the 8 cities listed in Switzerland range from 16.1°C in Sankt Gallen to 18.7°C in Basel. Monthly rainfall ranges from 117 mm in Bern to 188 mm in Luzern.
Long-term climate patterns, not a forecast for a particular trip.
City by city
May in Switzerland
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Zürich | 17.9°C8.6°C | 8.6°C | 144 | 16.0 |
| Geneva | 18.4°C9.5°C | 9.5°C | 144 | 15.9 |
| Basel | 18.7°C8.9°C | 8.9°C | 129 | 16.8 |
| Lausanne | 16.8°C9.6°C | 9.6°C | 120 | 13.9 |
| Bern | 16.3°C7.0°C | 7.0°C | 117 | 15.4 |
| Winterthur | 17.6°C8.5°C | 8.5°C | 119 | 15.2 |
| Luzern | 17.9°C8.1°C | 8.1°C | 188 | 18.4 |
| Sankt Gallen | 16.1°C7.0°C | 7.0°C | 155 | 17.2 |
A rain day is a local calendar day with at least 1 mm of precipitation.