Climate almanac
Siena
Tuscany, Italy · 43.32°, 11.33°
What is the weather like in Siena in August?
In August, Siena is typically 88°F (31°C) during the day and 65°F (19°C) at night. The month brings about 1.8 in (47 mm) of precipitation in total.
- Average high88°F (31°C)
- Average low65°F (19°C)
- Precipitation1.8 in (47 mm)
- Clear or mostly clear days21
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)