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Siena, Italy · Temperate oceanic

Siena in July: go or not?

Excellent time. Siena in July scores 8.5/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 43.32°N · 11.33°E
⚡ This month's verdict
Go for it
Siena · July
8.5
19–32°
Temperature
11%
Rain
9h
Sun
🌊 Seaside☀️ Bright🍴 Gastronomy
Photo : Marco Grosso via Unsplash
The month in detail

What to expect in July

In the height of summer, Siena sees high temperatures (32°C). Heat is a factor for outdoor activities. Rain risk remains low (11% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (8.7/10) remains theoretically better.

July ranks 2 out of 12 months in Siena. Compared to June: +3°C daytime, 9 pts fewer rainy days.

This month's conditions

What it's like in July

UV index
8 · high
sunscreen and hat advised
Feels like
comfortable
15°
Daylight
14.9h of daylight
Air quality
good
AQI 34
Compare

Is July the right month?

The best month in Siena is June (8.7/10), 0.2 pt higher than July.

See June →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Siena

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.

Country · Italy

🗣️LanguageItalian
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 32°C
❄️Coolest monthJanuary · 10°C
🌧️Rainiest month ⓘNovember · 33%

🏖️ Beach holiday

📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Location

Where is Siena ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Italy
Temperate oceanic climate with a 8.7 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
43.32°N · 11.33°E
Questions

Frequently asked questions

What is the best time to visit Siena?
June is the best month with 29.0°C highs, 16.0°C lows, 9.1h of sunshine and 20.0% rainy days. The months of June & July offer comparable conditions.
How many hours of sunshine does Siena get in June?
Siena averages 9.1 sunshine hours per day in June. It is the sunniest month with a climate score of 8.4/10.
What is the rainiest month in Siena?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Siena in June?
In June, overnight lows reach 16.0°C, while afternoon highs average 29.0°C.
Is Siena good in winter?
In winter (December-February), Siena scores 4.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 8.4/10.
When should you avoid Siena?
January is the most difficult month to visit Siena, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Siena in July?
The average UV index reaches 8 in July in Siena (high), with about 14.9h of daylight. Sunscreen and hat advised.