Average annual temperature is 14.5 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -2.6 °C
Number of sunny days: 167 days
Number of rainy days: 196 days
Number of snow days: 2 days
Look at detailed online map of Chiasso
* Weather data for Chiasso Switzerland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.1 | 17.6 | 19.1 | 20.7 | 26.8 | 30.7 | 32.0 | 35.0 | 27.8 | 29.6 | 17.7 | 19.2 |
| Average daytime temperature (°C) | 9.1 | 11.5 | 14.5 | 16.9 | 20.6 | 25.6 | 27.5 | 28.3 | 24.3 | 20.2 | 13.0 | 10.8 |
| Average temperature (°C) | 5.7 | 6.2 | 10.0 | 12.2 | 16.6 | 21.5 | 23.6 | 24.0 | 20.6 | 16.7 | 9.2 | 6.9 |
| Average night temperature (°C) | 2.8 | 2.5 | 5.6 | 7.4 | 12.9 | 17.4 | 19.5 | 19.8 | 17.2 | 13.7 | 6.0 | 3.9 |
| Absolute minimum temperature (°C) | -1.4 | -2.6 | -0.2 | 1.2 | 9.2 | 14.1 | 16.5 | 14.7 | 12.5 | 9.3 | 1.2 | 0.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.5 | 14.9 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 5.2 | 7.6 | 8.2 | 9.6 | 9.3 | 12.2 | 12.4 | 11.0 | 9.5 | 7.2 | 6.4 | 5.4 |
| Precipitation (mm) | 47 | 17 | 72 | 138 | 239 | 133 | 142 | 197 | 207 | 269 | 104 | 75 |
| Sunny days | 14 | 21 | 14 | 10 | 4 | 9 | 8 | 16 | 16 | 15 | 20 | 20 |
| Rainy days | 15 | 7 | 17 | 20 | 27 | 21 | 23 | 15 | 14 | 16 | 10 | 11 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Chiasso during the most sunny months:
Months with the longest average daylight duration in Chiasso:
The largest precipitation sum in Chiasso is at