Average annual temperature is 15.7 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -1.5 °C
Number of sunny days: 180 days
Number of rainy days: 185 days
Look at detailed online map of Provincia di Viterbo
* Weather data for Provincia di Viterbo 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) | 15.3 | 16.8 | 18.5 | 21.0 | 26.4 | 34.4 | 37.5 | 37.2 | 31.0 | 29.3 | 20.6 | 18.8 |
| Average daytime temperature (°C) | 10.6 | 11.6 | 14.7 | 16.4 | 21.3 | 26.4 | 32.2 | 30.9 | 27.4 | 24.4 | 15.7 | 12.9 |
| Average temperature (°C) | 7.1 | 6.9 | 10.5 | 11.6 | 16.5 | 21.4 | 26.2 | 24.8 | 21.8 | 19.4 | 12.4 | 9.2 |
| Average night temperature (°C) | 4.4 | 3.3 | 6.9 | 7.3 | 12.6 | 16.9 | 20.5 | 19.3 | 17.4 | 15.5 | 8.9 | 6.0 |
| Absolute minimum temperature (°C) | 0.0 | -1.5 | 3.0 | 2.3 | 9.3 | 14.4 | 16.5 | 14.4 | 13.8 | 12.4 | 3.1 | 1.4 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.8 | 8.1 | 8.8 | 10.8 | 9.5 | 12.7 | 13.4 | 12.4 | 10.5 | 8.6 | 6.6 | 6.3 |
| Precipitation (mm) | 124 | 28 | 62 | 78 | 168 | 76 | 8 | 46 | 31 | 73 | 103 | 35 |
| Sunny days | 11 | 20 | 16 | 12 | 6 | 11 | 23 | 22 | 20 | 15 | 9 | 15 |
| Rainy days | 20 | 8 | 15 | 18 | 25 | 19 | 8 | 9 | 10 | 16 | 21 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Provincia di Viterbo during the most sunny months:
The largest precipitation sum in Provincia di Viterbo is at