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Ontario Canada
Temperatures in August
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Ontario temperatures in August

Ontario is a region in Canada. August in has maximum daytime temperatures ranging from pleasant in Niagara on the Lake with 20°C to high temperatures in Amherstburg with 27°C. Nighttime temperatures generally drop to 20°C in Amherstburg and 12°C in Niagara on the Lake. August falls during the summer season.

What is the temperature of the different cities in Ontario in August?

Explore the map below to discover average August temperatures at the top destinations in Ontario. For a deeper dive, simply click on any destination dot.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in August in Ontario?
    • Based on our systematic data collection, Amherstburg has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 27°C, while at night is goes down to an approximate temperature of 20°C."

  • What is the coldest city in August in Ontario?
    • When looking through our records, we find that Niagara on the Lake stands out as the coolest city in Ontario for the month of August. Daytime highs average 20°C and it cools down to about 12°C at night.

  • How much sun does Ontario get in August?
    • The city Toronto usually sees around 245 hours of sunlight, indicating many sunny days.

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