Average annual temperature is 12.5 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 158 days
Number of rainy days: 200 days
Number of snow days: 7 days
Look at detailed online map of Trevi nel Lazio
* Weather data for Trevi nel Lazio 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) | 12.9 | 14.9 | 15.8 | 16.8 | 22.1 | 30.7 | 35.8 | 32.3 | 27.4 | 26.2 | 16.4 | 14.2 |
| Average daytime temperature (°C) | 7.5 | 8.8 | 11.2 | 12.3 | 16.8 | 22.4 | 28.4 | 26.2 | 23.4 | 20.0 | 11.4 | 9.6 |
| Average temperature (°C) | 4.4 | 4.4 | 7.3 | 8.0 | 13.1 | 18.2 | 23.4 | 20.8 | 18.7 | 16.2 | 8.6 | 6.3 |
| Average night temperature (°C) | 1.4 | 0.8 | 3.6 | 4.0 | 9.7 | 14.1 | 18.5 | 16.0 | 14.7 | 12.8 | 5.7 | 3.1 |
| Absolute minimum temperature (°C) | -4.6 | -4.3 | -0.2 | -1.6 | 6.1 | 10.5 | 12.3 | 10.0 | 9.0 | 7.9 | -0.8 | -1.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.7 | 8.2 | 8.0 | 9.5 | 8.4 | 12.5 | 13.5 | 12.1 | 10.7 | 8.6 | 5.8 | 6.5 |
| Precipitation (mm) | 190 | 33 | 78 | 91 | 270 | 126 | 18 | 64 | 54 | 114 | 171 | 57 |
| Sunny days | 12 | 23 | 11 | 8 | 3 | 8 | 21 | 17 | 16 | 14 | 7 | 18 |
| Rainy days | 13 | 5 | 20 | 21 | 28 | 22 | 10 | 14 | 14 | 17 | 23 | 13 |
| Snow days | 6 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Trevi nel Lazio during the most sunny months:
The largest precipitation sum in Trevi nel Lazio is at