Average annual temperature is 15.0 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: -4.2 °C
Number of sunny days: 143 days
Number of rainy days: 222 days
Look at detailed online map of Siano
* Weather data for Siano 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) | 16.8 | 17.6 | 20.1 | 20.7 | 24.8 | 31.2 | 38.1 | 35.4 | 32.4 | 30.7 | 19.3 | 18.1 |
| Average daytime temperature (°C) | 11.4 | 12.3 | 14.7 | 15.7 | 20.3 | 25.5 | 31.9 | 29.3 | 27.9 | 24.2 | 15.7 | 13.3 |
| Average temperature (°C) | 6.9 | 6.7 | 9.6 | 10.9 | 15.8 | 20.2 | 25.3 | 23.1 | 21.4 | 18.3 | 12.0 | 9.0 |
| Average night temperature (°C) | 3.0 | 2.0 | 4.9 | 6.2 | 11.4 | 14.6 | 19.1 | 17.2 | 16.0 | 13.6 | 8.1 | 5.3 |
| Absolute minimum temperature (°C) | -2.8 | -4.2 | 0.7 | 0.2 | 7.1 | 10.3 | 15.7 | 13.3 | 12.4 | 9.8 | -2.1 | -1.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.9 | 7.7 | 8.7 | 9.7 | 8.1 | 11.8 | 13.6 | 12.2 | 10.6 | 8.8 | 5.7 | 6.0 |
| Precipitation (mm) | 253 | 92 | 143 | 129 | 291 | 106 | 18 | 47 | 62 | 102 | 261 | 91 |
| Sunny days | 13 | 17 | 11 | 10 | 3 | 11 | 23 | 14 | 17 | 14 | 2 | 8 |
| Rainy days | 18 | 11 | 20 | 20 | 28 | 19 | 8 | 17 | 13 | 17 | 28 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Siano during the most sunny months:
The largest precipitation sum in Siano is at