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Canada weather

Weather in Owen Sound for September 2026

Your guide to Owen Sound weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Owen Sound is slightly cooler than the historical average by 0.8 °C.

  • The forecast for the next days in Owen Sound predicts a temperature of 17.2 °C, which is cooler than the historical average.

  • In general, the average temperature in Owen Sound at the beginning of September is 23.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 20.4 °C by the end of September.

    • Rain 🌧️

  • Owen Sound experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 110.9 mm.

    • More

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

Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/12°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Owen Sound Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
24°
2
Partly cloudy
24°
3
Sunny
25°
4
Sunny
24°
5
Sunny
25°
6
Thundery outbreaks possible
23°
7
Light rain shower
19°
8
Overcast
20°
9
Overcast
22°
10
Mist
21°
11
Mist
23°
12
Patchy rain possible
24°
13
Overcast
22°
14
Sunny
21°
15
Mist
23°
16
Partly cloudy
23°
17
Partly cloudy
22°
18
Patchy rain possible
19°
19
Mist
19°
20
Mist
21°
21
Thundery outbreaks possible
21°
22
Cloudy
22°
23
Sunny
21°
24
Fog
21°
25
Fog
20°
26
Overcast
19°
27
Sunny
20°
28
Sunny
20°
29
Partly cloudy
24°
30
Overcast
19°

Temperatures trend during September in Owen Sound

See the weather trend as well as the moving average line

September weather in Owen Sound day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 24° /12° 0.1 mm 6
2 Sept. Partly cloudy
Partly cloudy
 24° /12° 1.2 mm 5
3 Sept. Sunny
Sunny
 25° /14° 0 mm 6
4 Sept. Sunny
Sunny
 24° /13° 14.6 mm 6
5 Sept. Sunny
Sunny
 25° /13° 0 mm 7
6 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 23° /14° 6.2 mm 5
7 Sept. Light rain shower
Light rain shower
 19° /10° 16.7 mm 4
8 Sept. Overcast
Overcast
 20° /10° 0.2 mm 4
9 Sept. Overcast
Overcast
 22° /11° 2.1 mm 4
10 Sept. Mist
Mist
 21° /11° 0 mm 6
11 Sept. Mist
Mist
 23° /10° 0.5 mm 6
12 Sept. Patchy rain possible
Patchy rain possible
 24° /11° 3.5 mm 5
13 Sept. Overcast
Overcast
 22° /13° 0.6 mm 5
14 Sept. Sunny
Sunny
 21° /10° 0 mm 6
15 Sept. Mist
Mist
 23° /9° 1.7 mm 5
16 Sept. Partly cloudy
Partly cloudy
 23° /12° 0 mm 5
17 Sept. Partly cloudy
Partly cloudy
 22° /13° 1 mm 5
18 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 0.1 mm 4
19 Sept. Mist
Mist
 19° /8° 0 mm 4
20 Sept. Mist
Mist
 21° /8° 0 mm 5
21 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 21° /11° 4.5 mm 4
22 Sept. Cloudy
Cloudy
 22° /12° 16 mm 5
23 Sept. Sunny
Sunny
 21° /12° 18.5 mm 5
24 Sept. Fog
Fog
 21° /11° 0.7 mm 5
25 Sept. Fog
Fog
 20° /11° 0 mm 4
26 Sept. Overcast
Overcast
 19° /11° 0 mm 4.3
27 Sept. Sunny
Sunny
 20° /12° 0 mm 4.6
28 Sept. Sunny
Sunny
 20° /13° 0 mm 4.7
29 Sept. Partly cloudy
Partly cloudy
 24° /13° 0 mm 4.6
30 Sept. Overcast
Overcast
 19° /13° 10.7 mm 1.9
Next
Important Notice
Our weather forecast for Owen Sound in September 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 Owen Sound forecast closer to your planned date for the most up-to-date weather information.
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Owen Sound in September - FAQ

What are the expected maximum and minimum temperatures in Owen Sound during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Owen Sound during September?
Significant rainfall exceeding 110.9 mm is expected in Owen Sound during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Owen Sound during September?
The average wind speed in Owen Sound during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Owen Sound

Explore the daily rainfall trends and prepare for Owen Sounds September weather 💧
Typically, Owen Sound has 9 rainy days in September with a total of 110.9 mm of rainfall.

UV exposure in Owen Sound during September

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

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Location coordinates Where is Owen Sound?

Get accurate weather forecasts for Owen Sound, located at latitude 44.567 and longitude -80.943. Stay updated with localized weather information tailored for Owen Sound.

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