Average annual temperature is 13.8 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -4.9 °C
Number of sunny days: 174 days
Number of rainy days: 189 days
Number of snow days: 2 days
Look at detailed online map of San Leo
* Weather data for San Leo 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) | 13.1 | 17.5 | 18.0 | 20.8 | 24.3 | 32.4 | 36.2 | 36.4 | 31.4 | 28.7 | 18.9 | 18.3 |
| Average daytime temperature (°C) | 8.5 | 10.0 | 13.7 | 15.2 | 19.7 | 25.0 | 30.8 | 29.8 | 25.9 | 22.6 | 13.3 | 11.0 |
| Average temperature (°C) | 5.1 | 5.0 | 8.7 | 10.0 | 15.0 | 19.9 | 24.6 | 23.1 | 19.9 | 17.2 | 9.5 | 7.0 |
| Average night temperature (°C) | 1.7 | 1.0 | 4.1 | 4.7 | 10.2 | 14.4 | 18.4 | 16.7 | 15.0 | 12.6 | 5.4 | 3.7 |
| Absolute minimum temperature (°C) | -4.3 | -4.9 | -2.3 | -2.1 | 5.6 | 11.0 | 14.4 | 12.5 | 10.4 | 9.6 | -2.1 | -2.0 |
| 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) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| 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 | 8.0 |
| Sunshine mean duration (h) | 4.8 | 5.9 | 7.9 | 10.3 | 9.7 | 12.3 | 13.2 | 12.1 | 10.6 | 8.4 | 5.5 | 5.2 |
| Precipitation (mm) | 168 | 36 | 70 | 49 | 139 | 80 | 48 | 86 | 28 | 96 | 154 | 63 |
| Sunny days | 15 | 17 | 14 | 10 | 8 | 12 | 18 | 19 | 19 | 19 | 9 | 14 |
| Rainy days | 15 | 10 | 17 | 20 | 23 | 18 | 13 | 12 | 11 | 12 | 21 | 17 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Leo during the most sunny months:
Months with the longest average daylight duration in San Leo:
The largest precipitation sum in San Leo is at