Mild
Average highs are around 25°C, so days are mild rather than hot.
Weather Guide
Kingston, Ontario, Canada Average Monthly Weather
Weather score35Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 12°C, sunshine averages 5.5h per day, and rainfall totals about 945mm. Sea temperatures average 11°C across the year.
Annual weather
Annual averages
Temp
12°C
Rain
945mm
Annual total
Sun
5.5h
Sea
11°C
Weather score
35
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 81mm, so some wet days are possible.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Kingston, Ontario, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August25°C average high
August is one of Kingston's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August81mm average rain
August 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.
Sun
August7.8 hours average sun
August 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.
Sea temperature
August23°C average sea
August is one of Kingston's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
August65 weather score
August scores above Kingston's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
