Siena weather in May
Mild and comfortable, with some rainy days. Average highs of 22°C and lows of 11°C, with around 12 rainy days expected throughout the month.
While May isn't our top-rated month for Siena, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
22°C
Average low
11°C
Rainy days
12 days
Best months to visit
June, July, August, September
What to do in Siena in May
Whatever the weather, Siena rewards curious visitors. Here are some of the best ways to spend your time:
Explore the Piazza del Campo (Palio preparation if summer)
Tour the Cathedral with its spectacular marble facade
Climb the bell tower (Torre del Mangia) for views
Visit the Pinacoteca Nazionale for Sienese art
Walk the medieval streets beyond the famous plaza
Day trip to nearby wine region (Chianti, Brunello)
What to pack for May
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
10C
Cool, with occasional showers.
February
12C
Cool, with some rainy days.
March
14C
Cool, with occasional showers.
April
18C
Mild and comfortable, with occasional showers.
May (you are here)
22C
Mild and comfortable, with some rainy days.
Recommended
June
28C
Warm and pleasant, with occasional showers.
Recommended
July
31C
Hot and humid, with occasional showers.
Recommended
August
31C
Hot and humid, with occasional showers.
Recommended
September
25C
Warm and pleasant, with occasional showers.
October
20C
Mild and comfortable, with occasional showers.
November
15C
Cool, with some rainy days.
December
11C
Cool, with some rainy days.
Book your May trip to Siena
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