Climate averages 1991–2020
Lausanne weather
in December.
A cold, wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Lausanne: daytime highs average 5.8°C and nights cool to about 1.6°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 125 mm of rain on roughly 14 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 8 h 39 min on an average December day.
The nearest other city in this atlas is Geneva (51 km away). In December its highs average 5.9°C, about as warm as Lausanne, with 131 mm of rain.
Among the 8 cities listed in Switzerland, Lausanne ranks joint 2nd of 8 for the warmest December highs and 6th of 8 for the driest December (rainfall, lowest first). The mean December high of those 8 cities is 5.1°C; Lausanne is 0.7°C warmer than that mean.
From December to January, average highs fall by 0.7°C to 5.1°C, and monthly rainfall falls from 125 mm to 108 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Geneva in DecemberSwitzerland · 51 kmHigh 5.9°C · Low -0.1°C · 131 mm rain
- Bern in DecemberSwitzerland · 79 kmHigh 4.4°C · Low -2.1°C · 93 mm rain
- Besançon in DecemberFrance · 94 kmHigh 6.6°C · Low 1.2°C · 124 mm rain
- Basel in DecemberSwitzerland · 136 kmHigh 5.8°C · Low -0.8°C · 101 mm rain
- Luzern in DecemberSwitzerland · 141 kmHigh 5.3°C · Low 0.0°C · 131 mm rain
- Mulhouse in DecemberFrance · 147 kmHigh 5.4°C · Low -0.4°C · 92 mm rain
- Dijon in DecemberFrance · 152 kmHigh 6.6°C · Low 1.4°C · 84 mm rain
- Villeurbanne in DecemberFrance · 159 kmHigh 7.4°C · Low 1.5°C · 83 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.