Mild
Average highs are around 21°C, so days are mild rather than hot.
May verdict
Siena, Italy in May
Weather score54Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 7.2h per day, enough for a balanced month. Rainfall averages 58mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
21°C
Rain
58mm
Sun
7.2h
Weather score
54
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 58mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Map
Weather map
Compare Siena, Italy with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May21°C average high
May is close to Siena's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May58mm average rain
May sits near Siena's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsMay to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7.2 hours average sun
May sits close to Siena's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
May54 weather score
May sits close to Siena's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
