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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 76°F, while the coldest is January averaging around 27°F at night. Precipitation is fairly even year-round, totalling about 46 inches.
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 (°F) | 38 | 41 | 50 | 58 | 66 | 72 | 76 | 75 | 66 | 56 | 45 | 39 |
| Avg temp (°F) | 33 | 34 | 41 | 47 | 55 | 62 | 65 | 64 | 56 | 49 | 40 | 34 |
| Avg low (°F) | 27 | 26 | 32 | 37 | 45 | 52 | 55 | 55 | 48 | 42 | 34 | 29 |
| Precipitation (in) | 2.9 | 2.8 | 3.1 | 3.3 | 4.9 | 4.9 | 4.9 | 5.0 | 3.6 | 3.5 | 3.3 | 3.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 38 | 41 | 50 | 58 | 66 | 72 |
| Avg temp (°F) | 33 | 34 | 41 | 47 | 55 | 62 |
| Avg low (°F) | 27 | 26 | 32 | 37 | 45 | 52 |
| Precipitation (in) | 2.9 | 2.8 | 3.1 | 3.3 | 4.9 | 4.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 76 | 75 | 66 | 56 | 45 | 39 |
| Avg temp (°F) | 65 | 64 | 56 | 49 | 40 | 34 |
| Avg low (°F) | 55 | 55 | 48 | 42 | 34 | 29 |
| Precipitation (in) | 4.9 | 5.0 | 3.6 | 3.5 | 3.3 | 3.8 |
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 (mph) | 4.7 | 4.8 | 5.1 | 4.4 | 4.4 | 4.1 | 4.0 | 3.5 | 3.8 | 3.9 | 3.8 | 4.5 |
| 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 (mph) | 4.7 | 4.8 | 5.1 | 4.4 | 4.4 | 4.1 |
| 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 (mph) | 4.0 | 3.5 | 3.8 | 3.9 | 3.8 | 4.5 |
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.