Climate averages 1991–2020
Weather in Switzerland in August
In August, average daytime highs across the 8 cities listed in Switzerland range from 21.2°C in Sankt Gallen to 24.5°C in Basel. Monthly rainfall ranges from 101 mm in Bern to 211 mm in Luzern.
Long-term climate patterns, not a forecast for a particular trip.
City by city
August in Switzerland
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Zürich | 23.2°C15.0°C | 15.0°C | 147 | 14.4 |
| Geneva | 24.0°C15.5°C | 15.5°C | 117 | 12.7 |
| Basel | 24.5°C14.9°C | 14.9°C | 125 | 15.1 |
| Lausanne | 22.8°C16.8°C | 16.8°C | 116 | 12.4 |
| Bern | 21.8°C13.1°C | 13.1°C | 101 | 13.3 |
| Winterthur | 23.1°C14.6°C | 14.6°C | 107 | 13.0 |
| Luzern | 23.0°C15.2°C | 15.2°C | 211 | 17.7 |
| Sankt Gallen | 21.2°C12.7°C | 12.7°C | 175 | 16.8 |
A rain day is a local calendar day with at least 1 mm of precipitation.