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Ontario
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Ontario Weather August

To help you choose the best time to travel, you can find climate data below on the weather in Ontario in August.

Ontario Weather August:Niagara FallsToronto
day temperatureaverage daily high+26°C+25.5°C
night temperatureaverage daily low+16.2°C+17.4°C
sea temperaturesea temperature+22.4°C
Daylight hoursdaylight hours14.4h14.4h
sunny hours per daysunny/overcast hours7.9/6.5h
average monthly precipitationaverage monthly precipitation79 mm81 mm

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Temperature in Ontario

The average daily maximum in August is +26 — +25.5°C, and the minimum +16.2 — +17.4°C.

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Best places in Ontario:

Toronto

Niagara Falls

Ottawa

Hamilton

Blue Mountain

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Sea temperature

The average monthly temperature in Lake Ontario on the beaches of Toronto in August is +22.4 degrees.

The water is warm enough for nearly everyone to bathe in.

Ontario climate by month


Precipitation

The normal amount of precipitation for August is from 79 to 81 mm, which may cause a change of plans on certain days.