Mild
Average highs are around 20°C, so days are mild rather than hot.
May verdict
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 8.2h per day, so bright days are a strong part of the month. Rainfall averages 73mm, which is relatively low for holiday planning.

Monthly averages
Temp
20°C
Rain
73mm
Sun
8.2h
Weather score
53
Mixed
Mild
Average highs are around 20°C, so days are mild rather than hot.
Drier
Rainfall averages 73mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.2h per day, so bright days are a strong part of the month.
Map
Compare Windsor, Ontario, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
May20°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.
May73mm average rain
May sits near Windsor's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March, May, and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May8.2 hours average sun
May is brighter than Windsor's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
May53 weather score
May sits close to Windsor'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.