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Lausanne, Switzerland climate
Cfb Oceanic / temperate
Lausanne has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 25°C, while the coldest is January averaging around 1°C at night. Precipitation is fairly even year-round, totalling about 1132 mm.
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Summers
Mild
Highs near 25°C in July.
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Winters
Chilly
Lows near 1°C in January.
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Rain
Wet
About 1132 mm of rain a year.
Wettest in May
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Sky & trend
Often cloudy
Cloudy skies much of the year.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Lausanne climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 6 | 11 | 15 | 19 | 23 | 25 | 25 | 20 | 15 | 9 | 5 |
| Avg temp (°C) | 3 | 3 | 7 | 11 | 15 | 18 | 21 | 20 | 16 | 12 | 7 | 4 |
| Avg low (°C) | 1 | 1 | 4 | 7 | 11 | 14 | 16 | 16 | 13 | 9 | 5 | 2 |
| Precipitation (mm) | 75 | 64 | 72 | 84 | 113 | 107 | 103 | 110 | 98 | 111 | 99 | 98 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 6 | 11 | 15 | 19 | 23 |
| Avg temp (°C) | 3 | 3 | 7 | 11 | 15 | 18 |
| Avg low (°C) | 1 | 1 | 4 | 7 | 11 | 14 |
| Precipitation (mm) | 75 | 64 | 72 | 84 | 113 | 107 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 20 | 15 | 9 | 5 |
| Avg temp (°C) | 21 | 20 | 16 | 12 | 7 | 4 |
| Avg low (°C) | 16 | 16 | 13 | 9 | 5 | 2 |
| Precipitation (mm) | 103 | 110 | 98 | 111 | 99 | 98 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 68 | 69 | 72 | 65 | 59 | 59 | 61 | 66 | 71 | 71 |
| Relative humidity (%) | 84 | 84 | 81 | 78 | 77 | 76 | 72 | 71 | 76 | 80 | 84 | 84 |
| Wind speed (km/h) | 5.1 | 5.6 | 5.8 | 5.4 | 5.2 | 5.0 | 4.9 | 4.6 | 4.8 | 4.6 | 4.6 | 5.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 69 | 68 | 69 | 72 | 65 |
| Relative humidity (%) | 84 | 84 | 81 | 78 | 77 | 76 |
| Wind speed (km/h) | 5.1 | 5.6 | 5.8 | 5.4 | 5.2 | 5.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 59 | 61 | 66 | 71 | 71 |
| Relative humidity (%) | 72 | 71 | 76 | 80 | 84 | 84 |
| Wind speed (km/h) | 4.9 | 4.6 | 4.8 | 4.6 | 4.6 | 5.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Pully, about 3 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.