August Rainfall and Precipitation in Ontario
Average rainfall, rainy days and the driest cities in Ontario, Canada in August.
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Best Places to Visit in Ontario in August
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Ontario.
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in August: pale blue is dry, deep blue is wet.
Ontario precipitation in August: frequently asked questions
How much rainfall does Ontario, Canada receive in August?
Toronto stays mostly dry in August, with average rainfall close to 68 mm (2.7 in).
How many days does it rain in Ontario, Canada in August?
Toronto sees roughly 10 days rainy days during August.
Is August part of the rainy season in Ontario, Canada?
Not really. August is outside the wettest stretch of the year in Ontario, Canada.
What is the wettest city in August in Ontario, Canada?
Looking at our data, Otter Lake tops the wettest-cities list in Ontario, Canada for August, with monthly rainfall averaging 113 mm (4.4 in).
What is the driest city in August in Ontario, Canada?
Based on our database, Niagara on the Lake sees the least rainfall in Ontario, Canada in August, with around 47 mm (1.9 in) on average.
Interested in more climate information?
We have much more information about the climate in Ontario.
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Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit Algonquin Park
Algonquin park is one of the best places to experience the Canadian wilderness and learn more about the nation’s cultural history. It is open year round and offers a variety of activities depending on the season.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.
Banff National Park
Snowy mountains, clear blue lakes and green forests make Banff National Park a wonderful bucket list destination. The pristine wilderness is a mecca for walkers.