Climate averages 1991–2020
Lausanne weather
in August.
A warm, wet month: the warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Lausanne: daytime highs average 22.8°C and nights cool to about 16.8°C. By daytime temperature it is the warmest month of the year.
Expect about 116 mm of rain on roughly 12 days, which makes August a wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 11 min on an average August day.
The nearest other city in this atlas is Geneva (51 km away). In August its highs average 24.0°C, 1.2°C warmer than Lausanne, with 117 mm of rain.
Among the 8 cities listed in Switzerland, Lausanne ranks 6th of 8 for the warmest August highs and 3rd of 8 for the driest August (rainfall, lowest first). The mean August high of those 8 cities is 22.9°C; Lausanne is 0.2°C cooler than that mean.
From August to September, average highs fall by 4.0°C to 18.8°C, and monthly rainfall falls from 116 mm to 108 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Lausanne climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.1°C0.5°C | 0.5°C | 108 | 12.7 | 9.09 h |
| February | 6.1°C0.5°C | 0.5°C | 97 | 11.5 | 10.310 h |
| March | 9.5°C2.8°C | 2.8°C | 94 | 12.3 | 11.912 h |
| April | 13.1°C5.5°C | 5.5°C | 90 | 12.3 | 13.514 h |
| May | 16.8°C9.6°C | 9.6°C | 120 | 13.9 | 15.015 h |
| June | 20.5°C13.7°C | 13.7°C | 106 | 12.8 | 15.816 h |
| July | 22.7°C16.4°C | 16.4°C | 117 | 12.2 | 15.415 h |
| August, selected | 22.8°C16.8°C | 16.8°C | 116 | 12.4 | 14.214 h |
| September | 18.8°C13.2°C | 13.2°C | 108 | 11.7 | 12.613 h |
| October | 14.9°C9.5°C | 9.5°C | 101 | 12.4 | 10.911 h |
| November | 9.3°C4.7°C | 4.7°C | 116 | 13.1 | 9.59 h |
| December | 5.8°C1.6°C | 1.6°C | 125 | 13.5 | 8.79 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Geneva in AugustSwitzerland · 51 kmHigh 24.0°C · Low 15.5°C · 117 mm rain
- Bern in AugustSwitzerland · 79 kmHigh 21.8°C · Low 13.1°C · 101 mm rain
- Besançon in AugustFrance · 94 kmHigh 24.7°C · Low 15.5°C · 78 mm rain
- Basel in AugustSwitzerland · 136 kmHigh 24.5°C · Low 14.9°C · 125 mm rain
- Luzern in AugustSwitzerland · 141 kmHigh 23.0°C · Low 15.2°C · 211 mm rain
- Mulhouse in AugustFrance · 147 kmHigh 24.3°C · Low 15.1°C · 80 mm rain
- Dijon in AugustFrance · 152 kmHigh 25.2°C · Low 15.4°C · 70 mm rain
- Villeurbanne in AugustFrance · 159 kmHigh 26.4°C · Low 16.5°C · 75 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lausanne) is explained once on the Lausanne year overview and on the Sources, method and limits page.