Average annual temperature is 14.4 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 184
Number of rainy days: 181
Number of snow days:
Average annual precipitation: 963 mm
Look at detailed online map of Siena
* Weather data for Siena Italy is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.2 | 14.6 | 18.8 | 21.2 | 25.6 | 32.8 | 36.7 | 36.5 | 31.1 | 28.4 | 19.3 | 18.3 |
| Average daytime temperature (°C) | 9.7 | 10.6 | 14.7 | 16.5 | 20.9 | 26.3 | 31.8 | 31 | 26.8 | 22.9 | 14.2 | 11.2 |
| Average temperature (°C) | 5.6 | 5.4 | 9.4 | 10.8 | 15.7 | 20.5 | 25.3 | 24.1 | 20.4 | 17.4 | 10.1 | 6.9 |
| Average night temperature (°C) | 2.1 | 1.3 | 4.7 | 5.4 | 10.5 | 14.8 | 18.8 | 17.2 | 14.5 | 12.7 | 5.8 | 3 |
| Absolute minimum temperature (°C) | -2.9 | -5.5 | -0.7 | -1.4 | 7.5 | 12.2 | 15.7 | 12.8 | 10.7 | 10.3 | -2 | -1.3 |
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.9 | 11.2 | 12.7 | 14.1 | 15.2 | 15.4 | 15.4 | 14.6 | 13.2 | 11.8 | 10.3 | 9.2 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15 | 13.9 | 12.5 | 11 | 9.7 | 9 |
| Daylight minimum duration (h) | 9 | 9.9 | 11.2 | 12.7 | 14.1 | 15.2 | 14.6 | 13.3 | 11.8 | 10.3 | 9.3 | 9 |
| Sunshine mean duration (h) | 6.2 | 7 | 9.7 | 11.1 | 10.4 | 12.3 | 13.3 | 12 | 10.5 | 8.2 | 6.1 | 6.3 |
| Precipitation (mm) | 88 | 33 | 61 | 70 | 117 | 127 | 19 | 52 | 46 | 169 | 133 | 48 |
| Sunny days | 16 | 16 | 13 | 13 | 7 | 12 | 21 | 20 | 21 | 18 | 11 | 16 |
| Rainy days | 15 | 12 | 18 | 17 | 24 | 18 | 10 | 11 | 9 | 13 | 19 | 15 |
The best time to visit Siena during the most sunny months:
Months with the longest average daylight duration in Siena:
The largest precipitation sum in Siena is at