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Canada weather

Weather in Belleville for September 2026

Your guide to Belleville weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Belleville is slightly cooler than the historical average by 1.1 °C.

  • The forecast for the next days in Belleville predicts a temperature of 18.3 °C, which is cooler than the historical average.

  • In general, the average temperature in Belleville at the beginning of September is 24.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.

    • Rain 🌧️

  • Belleville experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 113.5 mm.

    • More

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

Average dry days
23
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/12°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Belleville Weather September

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

Temperatures trend during September in Belleville

See the weather trend as well as the moving average line

September weather in Belleville day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light drizzle
Light drizzle
 24° /13° 1.7 mm 5
2 Sept. Mist
Mist
 23° /13° 132.9 mm 4
3 Sept. Mist
Mist
 27° /12° 0.1 mm 6
4 Sept. Sunny
Sunny
 26° /14° 2.9 mm 7
5 Sept. Sunny
Sunny
 26° /13° 0 mm 6
6 Sept. Overcast
Overcast
 25° /15° 0 mm 6
7 Sept. Light rain shower
Light rain shower
 22° /10° 8.8 mm 6
8 Sept. Partly cloudy
Partly cloudy
 21° /10° 7.5 mm 5
9 Sept. Overcast
Overcast
 23° /11° 1.6 mm 4
10 Sept. Patchy light drizzle
Patchy light drizzle
 23° /10° 0.4 mm 6
11 Sept. Cloudy
Cloudy
 24° /12° 0 mm 6
12 Sept. Overcast
Overcast
 24° /13° 0 mm 6
13 Sept. Cloudy
Cloudy
 24° /13° 0.2 mm 5
14 Sept. Overcast
Overcast
 23° /11° 0 mm 6
15 Sept. Sunny
Sunny
 24° /11° 0 mm 5
16 Sept. Sunny
Sunny
 26° /13° 0 mm 5
17 Sept. Overcast
Overcast
 24° /12° 0.6 mm 5
18 Sept. Light rain shower
Light rain shower
 24° /11° 0.6 mm 5
19 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 22° /9° 0.8 mm 5
20 Sept. Sunny
Sunny
 22° /9° 0 mm 5
21 Sept. Overcast
Overcast
 21° /9° 0 mm 4
22 Sept. Mist
Mist
 22° /9° 0.9 mm 5
23 Sept. Mist
Mist
 21° /12° 5.5 mm 5
24 Sept. Mist
Mist
 22° /12° 0 mm 5
25 Sept. Overcast
Overcast
 22° /11° 56.3 mm 5
26 Sept. Overcast
Overcast
 23° /10° 0 mm 3.9
27 Sept. Overcast
Overcast
 21° /12° 7 mm 3.5
28 Sept. Overcast
Overcast
 19° /11° 0.3 mm 3.3
29 Sept. Overcast
Overcast
 19° /12° 0 mm 2.3
30 Sept. Overcast
Overcast
 21° /13° 2.4 mm 3.9
Next
Important Notice
Our weather forecast for Belleville 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 Belleville forecast closer to your planned date for the most up-to-date weather information.
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Belleville in September - FAQ

What are the expected maximum and minimum temperatures in Belleville during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Belleville during September?
Significant rainfall exceeding 113.5 mm is expected in Belleville during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Belleville during September?
The average wind speed in Belleville during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Belleville

Explore the daily rainfall trends and prepare for Bellevilles September weather 💧
Typically, Belleville has 7 rainy days in September with a total of 113.5 mm of rainfall.

UV exposure in Belleville during September

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

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Location coordinates Where is Belleville?

Get accurate weather forecasts for Belleville, located at latitude 44.167 and longitude -77.383. Stay updated with localized weather information tailored for Belleville.

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