Normally, average daily temperatures in Siena during the time of May is 14. You can expect a high of 20 degrees celsius with a low of 12 degrees.

MonthDegrees Celsius
High Temperature20
Low Temperature12
Sunshine Per Day7

Siena, Italy Weather in May FAQs

What’s the weather like?

The typical weather is 14 degrees celsius throughout the month

What is the average weather like in Summer?

Expect June to August weather on average to be 26 celsius.

On average whats the weather difference summer vs. winter?

The typical winter vs. summer temperature varies by 7 change in average daily temperature

How much sunshine can I typically expect?

Approximately 7 hours of sun per day

Click to see more Siena Weather including Siena, Italy April Weather and Siena, Italy June Weather