Zürich (Kreis 9) / Altstetten monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Zürich (Kreis 9) / Altstetten
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 2.2 | 4.1 | 8.2 | 12.8 | 17 | 20.3 | 22.8 | 21.7 | 18.4 | 13 | 7 | 3.2 |
| °F | 36 | 39.3 | 46.8 | 55 | 62.6 | 68.6 | 73 | 71 | 65.2 | 55.4 | 44.6 | 37.7 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
Average rainfall & rainy days
The graph below shows the average rainfall and number of rainy days per month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 66 | 63 | 65 | 88 | 111 | 139 | 128 | 139 | 91 | 65 | 76 | 67 |
| inches | 2.6 | 2.5 | 2.6 | 3.5 | 4.4 | 5.5 | 5 | 5.5 | 3.6 | 2.6 | 3 | 2.6 |
| Rainy days | 15 | 14 | 16 | 16 | 18 | 17 | 16 | 17 | 13 | 12 | 15 | 15 |
Average annual rainfall in Zürich (Kreis 9) / Altstetten: 1153.034mm (454 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Zürich (Kreis 9) / Altstetten
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 1.7 | 3.1 | 4.2 | 5.2 | 6 | 6.7 | 7.6 | 6.9 | 5.9 | 3.8 | 2.3 | 1.6 |
Day / night temperatures
The graph below shows the daily range of temperatures for each month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | -2.8 | -1.6 | 0.8 | 4 | 7.8 | 11.1 | 12.8 | 12.3 | 10 | 6.1 | 1.7 | -1.5 |
| Max °C | 2.4 | 4.2 | 8.4 | 13 | 17.3 | 20.6 | 23 | 21.9 | 18.7 | 13.2 | 7.2 | 3.3 |
| Min °F | 27.1 | 29.1 | 33.4 | 39.2 | 46 | 51.9 | 55 | 54.1 | 49.9 | 42.9 | 35 | 29.3 |
| Max °F | 31.6 | 34.3 | 40.3 | 47.3 | 54.5 | 60.4 | 64.2 | 62.8 | 57.7 | 49.3 | 39.9 | 33.6 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 9.9 | 8.9 | 9.3 | 11.6 | 15.4 | 19.3 | 21.9 | 22.7 | 20.7 | 17.7 | 14.6 | 11.8 |
| °F | 49.8 | 48 | 48.8 | 52.9 | 59.7 | 66.7 | 71.5 | 72.9 | 69.3 | 63.9 | 58.2 | 53.3 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 8 | 8 | 9 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 8 | 8 |
| mph | 5 | 5 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 5 | 5 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
Relative humidity
The graph below shows the average relative humidity.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 85% | 80% | 74% | 71% | 73% | 73% | 72% | 76% | 80% | 83% | 84% | 85% |
Other monthly averages
Zürich (Kreis 9) / Altstetten weather stats
| Hottest month: | July | 22.8°C 73°F |
|---|---|---|
| Driest month: | February | 63mm 2.5ins |
| Sunniest month: | July | 7.6hrs |
| Coldest month: | January | 2.2°C 36°F |
| Wettest month: | June | 139mm 5.5ins |
| Warmest sea: | August | 22.7°C 72.9°F |
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