Siena weather in September (Tuscany, Italy)
Planning a trip to Siena in September? This guide provides all the details you need.
In Siena the weather in September is generally perfect, characterized by high temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 26°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 14°C.
Siena in September usually receives moderate rainfall, averaging around 97 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 9 days of the month will see rainfall.
The days are predominantly sunny, with an estimated total of around 220 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.
If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. May, June and September generally stand out with the best circumstances. While January tends to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Siena climate page with graphs.
Siena, monthly averages in September
Min Temperature
14°C
Max Temperature
26°C
Chance of Rain
30%
Precipitation
97 mm
Rainy days
9 days
Sunshine
220 hours
Percentage Sunshine
Where to go in Italy in September
Find out more about the weather in Italy in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Siena in September?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Siena.
Our site offers climate and forecast data for every country in the world. Are you going to Italy? On this website you can find historical weather averages for many cities in Italy. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
