Generally the typical temperate in Viterbo right through the month of August is 22. With the average high being 31 degrees with a low of 17. We have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 22 |
| High Temperature | 31 |
| Low Temperature | 17 |
| Sunshine Per Day | 13 |
Useful Links: Viterbo Weather: Average Weather & Yearly Climate