Mild
Average highs are around 24°C, so days are mild rather than hot.
August verdict
Good for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 7.9h per day, enough for a balanced month. Rainfall averages 89mm, so some wet days are possible.

Monthly averages
Temp
24°C
Rain
89mm
Sun
7.9h
Sea
21°C
Weather score
61
Good
Mild
Average highs are around 24°C, so days are mild rather than hot.
Showers
Rainfall averages 89mm, so some wet days are possible.
Some sun
Sunshine averages 7.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Compare Blue Mountains, Ontario, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
August24°C average high
August is one of Blue Mountains' warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August89mm average rain
August is wetter than Blue Mountains' yearly average, so flexible plans matter more.
Driest monthsJanuary to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August7.9 hours average sun
August is brighter than Blue Mountains' 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.
August21°C average sea
August is one of Blue Mountains' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 19°C in this stretch, so swimming comfort is at its strongest.
August61 weather score
August is one of Blue Mountains' best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.