Average annual temperature is 14.8 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: -4.2 °C
Number of sunny days: 198 days
Number of rainy days: 167 days
Look at detailed online map of Olona
* Weather data for Olona Italy is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.3 | 19.3 | 22.2 | 23.3 | 28.0 | 36.8 | 37.6 | 38.3 | 31.7 | 30.6 | 17.3 | 18.7 |
| Average daytime temperature (°C) | 8.0 | 11.9 | 16.4 | 18.7 | 22.1 | 28.9 | 31.2 | 31.9 | 27.0 | 22.2 | 12.7 | 8.8 |
| Average temperature (°C) | 4.4 | 5.9 | 10.5 | 12.8 | 17.3 | 23.3 | 25.6 | 26.0 | 21.3 | 17.2 | 8.1 | 4.9 |
| Average night temperature (°C) | 1.7 | 1.7 | 5.3 | 7.3 | 13.1 | 18.1 | 20.2 | 20.4 | 16.4 | 13.2 | 4.3 | 2.3 |
| Absolute minimum temperature (°C) | -3.5 | -4.2 | 0.7 | 1.1 | 9.5 | 14.4 | 16.8 | 14.7 | 11.2 | 8.9 | -0.9 | -2.3 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.2 | 14.1 | 12.5 | 11.0 | 9.6 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.1 | 7.7 | 9.1 | 10.2 | 9.6 | 12.0 | 12.6 | 11.8 | 9.9 | 7.4 | 6.1 | 4.0 |
| Precipitation (mm) | 65 | 7 | 23 | 69 | 154 | 69 | 78 | 64 | 54 | 137 | 95 | 41 |
| Sunny days | 15 | 22 | 23 | 16 | 8 | 10 | 14 | 18 | 19 | 18 | 17 | 18 |
| Rainy days | 16 | 6 | 8 | 14 | 23 | 20 | 17 | 13 | 11 | 13 | 13 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Olona during the most sunny months:
Months with the longest average daylight duration in Olona:
The largest precipitation sum in Olona is at