Siena Weather in May
21.6°C high · 11°C low · 57 mm rain · 9.7h sun
Yes — May is one of the best months to visit Siena, with mild weather and 9.7h of daily sunshine.
May at a glance
| Metric | Value |
|---|---|
| Average high | 21.6°C |
| Average low | 11°C |
| Rainfall | 57 mm |
| Sunshine | 9.7 hours/day |
| Daylight | 14.5 hours |
What to pack in May
Pack comfortable clothes with a light layer for evenings for Siena in May.
Siena weather by month
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Frequently asked questions
What is the weather in Siena in May?
Highs of 21.6°C and lows of 11°C, with about 57 mm of rain and 9.7 hours of sunshine per day.
Is May a good time to visit Siena?
Yes — May is one of the best months to visit Siena, with mild weather and 9.7h of daily sunshine.
What to do in Siena · Best time to visit Siena
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.