Cool
Average highs are around 17°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 17°C, so pack for cooler days. Sunshine averages 5.7h per day, enough for a balanced month. Rainfall averages 82mm, so some wet days are possible.

Monthly averages
Temp
17°C
Rain
82mm
Sun
5.7h
Weather score
30
Poor
Cool
Average highs are around 17°C, so pack for cooler days.
Showers
Rainfall averages 82mm, so some wet days are possible.
Some sun
Sunshine averages 5.7h per day, enough for a balanced month.
Map
Compare Bolzano, Bolzano, Italy with nearby places by weather score, rain, sun, temperature, and swim conditions.
May17°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
May82mm average rain
May is wetter than Bolzano's yearly average, so flexible plans matter more.
Driest monthsJanuary to April and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May5.7 hours average sun
May sits close to Bolzano'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.
May30 weather score
May scores below Bolzano's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.