Weather in August in Ontario
Planning a getaway to Ontario this August and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:
What is the weather like in Ontario in August?
Ontario is a region in Canada. August in Ontario generally has temperatures that range from pleasant to warm, with precipitation levels ranging from moderate to high. It's the height of summer.
Temperatures
Based on our climate data spanning from 1990-2020, the average maximum temperature is pleasant in Niagara on the Lake at 20°C to warm in Amherstburg at 27°C. Nighttime temperatures generally drop to 20°C in Amherstburg and 12°C in Niagara on the Lake.To explore the conditions in Ontario in more detail, check the map below.
Precipitation
In August, precipitation varies across different areas. From moderate rainfall in Niagara on the Lake with an average of 47 mm to high rainfall in Otter Lake with 113 mm. Looking at the climate data spanning the last 30 years, this month usually has the lowest rainfall in Toronto, marking it as the year's driest month.Average sunshine
Meanwhile, Toronto enjoys approximately 245 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.For an in-depth overview of the yearly conditions, do visit our Ontario climate page.
Where to go in Ontario in August
perfect weather
pleasant
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Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Ontario's climate page.
Popular destinations
What is the weather like in August for the 5 most popular destinations in Ontario?
Toronto
In August Toronto generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 18°C and moderate monthly rainfall. So on average the conditions are perfect that month.
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Ottawa
In August Ottawa generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.
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Niagara Falls
In August Niagara Falls generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 17°C and moderate monthly rainfall. So on average the conditions are perfect that month.
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Mississauga
In August Mississauga generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 17°C and moderate monthly rainfall. So on average the conditions are perfect that month.
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Niagara on the Lake
In August Niagara on the Lake generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 12°C and moderate monthly rainfall. So on average the conditions are perfect that month.
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Is your destination not in the list? Have a look at other destinations in Ontario, in Canada.
Is August the best time to visit Ontario?
We believe that August is one of the best times to visit Ontario with overall perfect weather in Toronto.
On average, the best time to visit Ontario is in June, July, August and September with generally perfect weather in Toronto. The weather in January, February, March, April, November and December, on the other hand, tends to be poor.
Interested in more climate information?
We have much more information about the climate in Ontario.
Weather and climate has detailed information for every country in the world. Are you going to Canada? Get detailed historical weather averages for many cities in Canada.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.