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Winterthur, Switzerland climate
Cfb Oceanic / temperate
Winterthur has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around −3°C at night. Precipitation is fairly even year-round, totalling about 1169 mm.
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)Winterthur climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 5 | 10 | 14 | 19 | 22 | 24 | 24 | 19 | 14 | 7 | 4 |
| Avg temp (°C) | 0 | 1 | 5 | 9 | 13 | 17 | 18 | 18 | 14 | 9 | 4 | 1 |
| Avg low (°C) | −3 | −3 | 0 | 3 | 7 | 11 | 13 | 13 | 9 | 5 | 1 | −2 |
| Precipitation (mm) | 75 | 71 | 80 | 85 | 125 | 124 | 124 | 126 | 91 | 89 | 83 | 97 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 3 | 5 | 10 | 14 | 19 | 22 |
| Avg temp (°C) | 0 | 1 | 5 | 9 | 13 | 17 |
| Avg low (°C) | −3 | −3 | 0 | 3 | 7 | 11 |
| Precipitation (mm) | 75 | 71 | 80 | 85 | 125 | 124 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 19 | 14 | 7 | 4 |
| Avg temp (°C) | 18 | 18 | 14 | 9 | 4 | 1 |
| Avg low (°C) | 13 | 13 | 9 | 5 | 1 | −2 |
| Precipitation (mm) | 124 | 126 | 91 | 89 | 83 | 97 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 69 | 68 | 67 | 69 | 65 | 60 | 60 | 62 | 68 | 72 | 72 |
| Relative humidity (%) | 88 | 85 | 82 | 79 | 79 | 78 | 78 | 79 | 82 | 85 | 88 | 88 |
| Wind speed (m/s) | 2.1 | 2.1 | 2.3 | 2.0 | 2.0 | 1.8 | 1.8 | 1.6 | 1.7 | 1.7 | 1.7 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 69 | 68 | 67 | 69 | 65 |
| Relative humidity (%) | 88 | 85 | 82 | 79 | 79 | 78 |
| Wind speed (m/s) | 2.1 | 2.1 | 2.3 | 2.0 | 2.0 | 1.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 60 | 62 | 68 | 72 | 72 |
| Relative humidity (%) | 78 | 79 | 82 | 85 | 88 | 88 |
| Wind speed (m/s) | 1.8 | 1.6 | 1.7 | 1.7 | 1.7 | 2.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Aadorf / Tänikon, about 14 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.