Cool
Average highs are around 18°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 7.5h per day, enough for a balanced month. Rainfall averages 77mm, which is relatively low for holiday planning.
Monthly averages
Temp
18°C
Rain
77mm
Sun
7.5h
Sea
7°C
Weather score
37
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Drier
Rainfall averages 77mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.5h per day, enough for a balanced month.
Cool sea
Sea temperatures average 7°C, so the water can feel cool.
Map
Compare Kingston, Ontario, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
May18°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.
May77mm average rain
May sits near Kingston's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to August and October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May7.5 hours average sun
May is brighter than Kingston'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.
May7°C average sea
May is below Kingston's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
May37 weather score
May sits close to Kingston's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.