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Weather in Owen Sound for September 2025

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

    Temperatures

  • Until now, September 2025 in Owen Sound is cooler than usual, with temperatures averaging 19.3 °C, this is -2.8 °C below the typical seasonal average.

  • The forecast for the upcoming days in Owen Sound predicts a temperature of 23.4 °C, which is slightly above the historical average.

  • In general, the average temperature in Owen Sound at the beginning of September is 22.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 23.4 °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 90.1 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
22°/12°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
73 %
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
22°
2
Partly cloudy
22°
3
Sunny
25°
4
Partly cloudy
24°
5
Sunny
26°
6
Thundery outbreaks possible
22°
7
Light rain shower
17°
8
Overcast
18°
9
Overcast
21°
10
Mist
21°
11
Mist
23°
12
Overcast
23°
13
Overcast
22°
14
Partly cloudy
23°
15
Mist
23°
16
Partly cloudy
26°
17
Sunny
26°
18
Overcast
19°
19
Overcast
14°
20
Sunny
22°
21
Patchy rain possible
27°
22
Patchy rain possible
27°
23
Patchy rain possible
29°
24
Patchy rain possible
24°
25
Patchy rain possible
27°
26
Patchy rain possible
18°
27
Patchy rain possible
19°
28
Sunny
24°
29
Sunny
26°
30
Sunny
26°

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
 22° /10° 0.2 mm 5
2 Sept. Partly cloudy
Partly cloudy
 22° /11° 0 mm 6
3 Sept. Sunny
Sunny
 25° /13° 0 mm 6
4 Sept. Partly cloudy
Partly cloudy
 24° /13° 19.5 mm 6
5 Sept. Sunny
Sunny
 26° /13° 0 mm 6
6 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 22° /14° 8.3 mm 5
7 Sept. Light rain shower
Light rain shower
 17° /10° 22.3 mm 4
8 Sept. Overcast
Overcast
 18° /9° 0.2 mm 4
9 Sept. Overcast
Overcast
 21° /9° 0.4 mm 5
10 Sept. Mist
Mist
 21° /11° 0 mm 5
11 Sept. Mist
Mist
 23° /11° 0.6 mm 5
12 Sept. Overcast
Overcast
 23° /11° 4.2 mm 5
13 Sept. Overcast
Overcast
 22° /13° 0.4 mm 5
14 Sept. Partly cloudy
Partly cloudy
 23° /11° 0 mm 6
15 Sept. Mist
Mist
 23° /9° 0 mm 6
16 Sept. Partly cloudy
Partly cloudy
 26° /12° 0 mm 7
17 Sept. Sunny
Sunny
 26° /14° 0 mm 1.3
18 Sept. Overcast
Overcast
 19° /14° 0 mm 1.2
19 Sept. Overcast
Overcast
 14° /8° 0 mm 1.3
20 Sept. Sunny
Sunny
 22° /7° 0 mm 1.3
21 Sept. Patchy rain possible
Patchy rain possible
 27° /13° 4 mm 0
22 Sept. Patchy rain possible
Patchy rain possible
 27° /17° 0.2 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
 29° /17° 0.4 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 24° /17° 0.1 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
 27° /16° 1.1 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
 18° /13° 2.3 mm 4
27 Sept. Patchy rain possible
Patchy rain possible
 19° /13° 0.8 mm 4
28 Sept. Sunny
Sunny
 24° /14° 0 mm 5
29 Sept. Sunny
Sunny
 26° /15° 0 mm 5
30 Sept. Sunny
Sunny
 26° /16° 0 mm 6
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 22° 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?
Moderate rainfall is anticipated in Owen Sound during September, with a total of 90.1 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
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 💧

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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