Average annual temperature is 16.8 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -0.4 °C
Number of sunny days: 158 days
Number of rainy days: 206 days
Number of snow days: 1 day
Look at detailed online map of San Gennaro
* Weather data for San Gennaro 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) | 16.4 | 17.1 | 19.6 | 21.1 | 27.7 | 34.0 | 39.9 | 36.8 | 32.9 | 32.3 | 20.8 | 19.0 |
| Average daytime temperature (°C) | 12.7 | 13.5 | 15.8 | 17.4 | 21.6 | 26.8 | 31.9 | 30.4 | 28.6 | 24.7 | 17.2 | 14.3 |
| Average temperature (°C) | 8.8 | 8.7 | 11.7 | 12.8 | 17.5 | 22.3 | 26.7 | 24.9 | 23.1 | 20.2 | 13.6 | 10.6 |
| Average night temperature (°C) | 5.9 | 5.1 | 8.1 | 8.5 | 13.7 | 17.9 | 21.8 | 20.2 | 18.6 | 16.6 | 10.2 | 7.5 |
| Absolute minimum temperature (°C) | -0.4 | 0.4 | 4.4 | 3.2 | 11.3 | 15.1 | 18.1 | 15.0 | 14.2 | 14.6 | 3.4 | 3.1 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 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) | 6.5 | 8.2 | 9.0 | 10.2 | 9.3 | 12.9 | 13.5 | 12.2 | 10.8 | 8.8 | 6.5 | 6.4 |
| Precipitation (mm) | 167 | 27 | 95 | 120 | 215 | 113 | 11 | 54 | 21 | 97 | 182 | 35 |
| Sunny days | 10 | 20 | 13 | 7 | 2 | 8 | 23 | 20 | 20 | 15 | 5 | 15 |
| Rainy days | 21 | 7 | 18 | 23 | 29 | 22 | 8 | 11 | 10 | 16 | 25 | 16 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Gennaro during the most sunny months:
The largest precipitation sum in San Gennaro is at