Which is the hottest month in Siena?

The hottest time of year in Siena is normally July. Expect maximum daytime temperatures to reach 29°C with moderate heat and humidity.

Which month has the most rain in Siena?

In terms of rainfall, November is usually the wettest month in Siena with 103mm on average. There are normally 14 days in November with some rain.

When is it sunniest in Siena?

The sunniest time of year in Siena is normally July with bright sunshine on average for 64% of daylight hours; that's 10 hours of sunshine per day.

Best time to visit Siena

Q: When is the best time to visit Siena?

The best time to visit Siena is August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Siena by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Siena?

The best time to visit Siena is August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

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Jan
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Mar
1.5
Apr
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May
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Jun
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Jul
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Aug
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Sep
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Max Day Temperature (°C)

9
Jan
11
Feb
13
Mar
17
Apr
21
May
25
Jun
29
Jul
28
Aug
25
Sep
20
Oct
14
Nov
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Dec

Hours of Sunshine (daily)

4
Jan
4
Feb
5
Mar
6
Apr
7
May
8
Jun
10
Jul
9
Aug
7
Sep
5
Oct
4
Nov
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Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Tuscany (Siena) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)