Siena weather in October
Temperature, rain and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: May – September
What is the weather like in Siena in October?
In October, Siena is mild: daytime highs average 19 °C, and nights cool down to about 10 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 101 mm in total. All in all, October is a good month for a holiday in Siena.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 83 | 75 | 43 |
| Day | 24° | 19° | 13° |
| Night | 14° | 10° | 6° |
| Sun | 7 h | 5 h | 4 h |
| Rain days | 9 | 10 | 12 |
More details for October
- Daylight
- 11 h 7 min07:27 – 18:34
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 13 km/haverage daily peakAll months
- Cloud cover
- 59 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Rome
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %35 %
- Few rainy daysweight 30 %60 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Siena in October: quick answers
Is Siena hot in October?
No. In October, Siena is mild: daytime highs average 19 °C and nights drop to about 10 °C.
Does it rain much in Siena in October?
Rain is frequent, with about 10 rainy days and 101 mm in total.
Siena month by month
The whole year in SienaAll destinations: ItalyWhere to go in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences