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Weather in Orillia for August 2025

Your guide to Orillia weather in August - trends and predictions

    Temperatures

  • The forecast for the first days of August 2025 in Orillia predicts temperatures to be around 28 °C, close to the historical average.

  • In general, the average temperature in Orillia at the beginning of August is 28.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.1 °C by the end of August.

    • Rain 🌧️

  • Orillia in August brings notable rainfall, with an average of 17 rainy days and a total precipitation of 119.1 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/14°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Orillia Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
25°
2
Sunny
27°
3
Sunny
29°
4
Sunny
29°
5
Partly cloudy
31°
6
Partly cloudy
31°
7
Patchy rain possible
30°
8
Patchy rain possible
29°
9
Sunny
29°
10
Sunny
32°
11
Patchy rain possible
34°
12
Patchy rain possible
23°
13
Sunny
17°
14
Patchy rain possible
25°
15
Patchy rain possible
25°
16
Partly cloudy
26°
17
Patchy rain possible
25°
18
Moderate or heavy rain shower
20°
19
Partly cloudy
22°
20
Heavy rain at times
23°
21
Overcast
21°
22
Overcast
23°
23
Heavy rain at times
23°
24
Patchy rain possible
24°
25
Mist
25°
26
Light rain shower
25°
27
Overcast
26°
28
Cloudy
22°
29
Mist
24°
30
Light rain
23°
31
Partly cloudy
24°

Temperatures trend during August in Orillia

See the weather trend as well as the moving average line

August weather in Orillia day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
1 Aug. Sunny
Sunny
 25° /13° 0 mm 2.1
2 Aug. Sunny
Sunny
 27° /11° 0 mm 1.7
3 Aug. Sunny
Sunny
 29° /17° 0 mm 0.1
4 Aug. Sunny
Sunny
 29° /16° 0 mm 6
5 Aug. Partly cloudy
Partly cloudy
 31° /19° 0 mm 6
6 Aug. Partly cloudy
Partly cloudy
 31° /20° 0 mm 7
7 Aug. Patchy rain possible
Patchy rain possible
 30° /20° 1.7 mm 5
8 Aug. Patchy rain possible
Patchy rain possible
 29° /20° 0.7 mm 5
9 Aug. Sunny
Sunny
 29° /17° 0 mm 6
10 Aug. Sunny
Sunny
 32° /19° 0 mm 7
11 Aug. Patchy rain possible
Patchy rain possible
 34° /21° 2.3 mm 6
12 Aug. Patchy rain possible
Patchy rain possible
 23° /11° 0.2 mm 4
13 Aug. Sunny
Sunny
 17° /10° 0 mm 4
14 Aug. Patchy rain possible
Patchy rain possible
 25° /14° 0.8 mm 6
15 Aug. Patchy rain possible
Patchy rain possible
 25° /15° 1.1 mm 6
16 Aug. Partly cloudy
Partly cloudy
 26° /16° 0.9 mm 7
17 Aug. Patchy rain possible
Patchy rain possible
 25° /17° 10.7 mm 6
18 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /15° 22.8 mm 5
19 Aug. Partly cloudy
Partly cloudy
 22° /12° 0.1 mm 6
20 Aug. Heavy rain at times
Heavy rain at times
 23° /12° 0.9 mm 5
21 Aug. Overcast
Overcast
 21° /12° 0 mm 5
22 Aug. Overcast
Overcast
 23° /11° 0 mm 5
23 Aug. Heavy rain at times
Heavy rain at times
 23° /13° 2.3 mm 6
24 Aug. Patchy rain possible
Patchy rain possible
 24° /15° 0.9 mm 6
25 Aug. Mist
Mist
 25° /15° 0 mm 6
26 Aug. Light rain shower
Light rain shower
 25° /13° 0.9 mm 6
27 Aug. Overcast
Overcast
 26° /13° 0.1 mm 6
28 Aug. Cloudy
Cloudy
 22° /12° 0.4 mm 5
29 Aug. Mist
Mist
 24° /11° 1.5 mm 6
30 Aug. Light rain
Light rain
 23° /11° 7.5 mm 6
31 Aug. Partly cloudy
Partly cloudy
 24° /12° 6 mm 6
Next
Important Notice
Our weather forecast for Orillia in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Orillia forecast closer to your planned date for the most up-to-date weather information.
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Orillia in August - FAQ

What are the expected maximum and minimum temperatures in Orillia during August?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Orillia during August?
Significant rainfall exceeding 119.1 mm is expected in Orillia during August, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Orillia during August?
The average wind speed in Orillia during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Orillia

Explore the daily rainfall trends and prepare for Orillias August weather 💧

UV exposure in Orillia during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Orillia?

Get accurate weather forecasts for Orillia, located at latitude 44.609 and longitude -79.421. Stay updated with localized weather information tailored for Orillia.

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