Siena Weather in July
What's the weather like in Siena (Tuscany) in July 2025?
The climate in Siena during July can be summarized as warm and dry.
July is in the summer in Siena and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (84°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 28.7°C 83.7°F |
|---|---|
| Nightly temperature | 16.7°C 62.1°F |
| Average temperature | 22.7°C 72.9°F |
| Daily sunshine | 10.4 hrs |
| Avg rainfall | 30 mm 1.2 ins |
| Rainy days | 6 days |
| Sea temperature | 24.4°C 75.9°F |
| Humidity | 66% |
| Windspeed | 9kph 6 mph |
On average July is the driest month of the year in Siena with around 30mm 1.2 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.4 hours of sunshine per day.
July temperatures in Siena
July rainfall
July hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Siena in July 2025.
Other monthly averages
Siena weather stats
| Hottest month: | July | 28.4°C 83.1°F |
|---|---|---|
| Driest month: | July | 30mm 1.2ins |
| Sunniest month: | July | 10.4hrs |
| Coldest month: | January | 9.1°C 48.4°F |
| Wettest month: | November | 103mm 4.1ins |
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