Average annual temperature is 18.1 °C
Absolute maximum temperature: 45.6 °C
Absolute minimum temperature: 0.0 °C
Number of sunny days: 223 days
Number of rainy days: 142 days
Look at detailed online map of Riesi
* Weather data for Riesi 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) | 18.8 | 19.4 | 23.7 | 26.0 | 27.7 | 39.1 | 45.6 | 38.0 | 35.0 | 32.9 | 26.1 | 21.2 |
| Average daytime temperature (°C) | 15.0 | 14.9 | 18.0 | 20.4 | 23.3 | 29.7 | 37.6 | 33.9 | 31.0 | 28.9 | 21.6 | 17.4 |
| Average temperature (°C) | 9.7 | 9.0 | 12.3 | 14.3 | 18.0 | 23.6 | 29.7 | 26.7 | 24.0 | 21.8 | 16.1 | 11.8 |
| Average night temperature (°C) | 5.4 | 4.2 | 7.2 | 8.5 | 13.5 | 17.5 | 21.7 | 20.0 | 18.7 | 16.2 | 11.4 | 7.4 |
| Absolute minimum temperature (°C) | 0.8 | 0.0 | 3.9 | 3.4 | 10.2 | 13.9 | 18.0 | 16.5 | 15.8 | 13.8 | 5.0 | 3.7 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 8.0 | 8.3 | 10.0 | 10.8 | 9.7 | 12.3 | 13.4 | 12.3 | 11.1 | 9.6 | 8.1 | 7.1 |
| Precipitation (mm) | 40 | 178 | 35 | 31 | 150 | 48 | 0 | 7 | 16 | 5 | 56 | 18 |
| Sunny days | 13 | 17 | 18 | 14 | 5 | 15 | 31 | 23 | 23 | 28 | 12 | 24 |
| Rainy days | 18 | 11 | 13 | 16 | 26 | 15 | 0 | 8 | 7 | 3 | 18 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Riesi during the most sunny months:
The largest precipitation sum in Riesi is at