By continuing to browse this website, you accept the use of cookies and trackers intended to enable us to improve our services, measure traffic to the website, compile statistics and offer you content, services and ads adapted to your profile and interests. Find out more





Ontario Weather October

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

Ontario Weather October:Niagara FallsToronto
day temperatureaverage daily high+15.1°C+14°C
night temperatureaverage daily low+6.3°C+7.4°C
sea temperaturesea temperature+14°C
Daylight hoursdaylight hours11.5h11.5h
sunny hours per daysunny/overcast hours5.0/6.5h
average monthly precipitationaverage monthly precipitation80 mm64 mm

Best places in Ontario

Temperature in Ontario

The average daily maximum in October is +15.1 — +14°C, and the minimum +6.3 — +7.4°C.

Most booked hotels in Ontario

Search flights to Ontario

Best places in Ontario:


Niagara Falls



Blue Mountain

Most Popular Destinations in the World

Sea temperature

The average monthly temperature in Lake Ontario on the beaches of Toronto in October is +14 degrees.

The water is cold and only apt for bathing for the most hardy people.

Ontario climate by month


The normal amount of precipitation for October is from 64 to 80 mm, which may cause a change of plans on certain days.