The temperatures in Orillia in August are comfortable with low of 15°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Orillia during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Orillia in August 2025.
If you’re planning to visit Orillia in the near future, we highly recommend that you review the 14 day weather forecast for Orillia before you arrive.
Temperatures
24° / 15°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
144
mm
Sun Hours
7.6
Hrs
