Average annual temperature is 16.7 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 0.3 °C
Number of sunny days: 151 days
Number of rainy days: 214 days
Look at detailed online map of Castel Gandolfo
* Weather data for Castel Gandolfo 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) | 16.1 | 16.6 | 19.2 | 20.5 | 26.8 | 32.7 | 39.0 | 36.7 | 32.0 | 30.5 | 20.5 | 18.7 |
| Average daytime temperature (°C) | 11.9 | 12.7 | 15.2 | 16.9 | 21.0 | 26.2 | 31.9 | 30.3 | 28.2 | 24.3 | 16.8 | 13.7 |
| Average temperature (°C) | 8.7 | 8.3 | 11.5 | 12.5 | 17.2 | 22.0 | 26.8 | 25.0 | 22.9 | 20.2 | 13.5 | 10.7 |
| Average night temperature (°C) | 6.1 | 4.8 | 8.1 | 8.6 | 13.8 | 18.1 | 22.2 | 20.6 | 18.7 | 17.0 | 10.5 | 7.5 |
| Absolute minimum temperature (°C) | 1.1 | 0.3 | 4.5 | 3.4 | 11.2 | 15.5 | 18.4 | 15.9 | 13.6 | 14.7 | 2.9 | 3.2 |
| 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) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.6 | 8.3 | 9.2 | 10.3 | 9.3 | 12.8 | 13.5 | 12.3 | 10.7 | 8.7 | 6.6 | 6.4 |
| Precipitation (mm) | 145 | 43 | 83 | 114 | 193 | 111 | 8 | 43 | 21 | 74 | 153 | 41 |
| Sunny days | 9 | 17 | 12 | 8 | 3 | 8 | 23 | 20 | 18 | 16 | 5 | 12 |
| Rainy days | 22 | 11 | 19 | 22 | 28 | 22 | 8 | 11 | 12 | 15 | 25 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castel Gandolfo during the most sunny months:
The largest precipitation sum in Castel Gandolfo is at