Saint Joseph de Sorel, Quebec, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Saint Joseph de Sorel, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Saint Joseph de Sorel, Quebec, Canada
6 AM3rd Oct 2025
6 PM
5 AM4th Oct 2025
54AQI
39AQI
57AQI
45AQI
In the last 24 hours,
Saint Joseph de Sorel's AQI reached its highest point of 57 at 10 PM during the Night, while the lowest point, 39, was recorded at 7 AM during the Day between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Saint Joseph de Sorel, Quebec, Canada
20°C9/30°C
18°C10/26°C
14°C10/16°C
14°C9/22°C
13°C6/20°C
15°C7/25°C
17°C9/27°C
15°C7/21°C
13°C5/20°C
16°C9/26°C
17°C10/23°C
16°C8/25°C
16°C7/24°C
17°C7/28°C
19°C10/30°C
13°C8/21°C
10°C3/19°C
12°C3/21°C
16°C9/23°C
19°C15/24°C
18°C13/24°C
16°C15/18°C
17°C13/22°C
14°C6/23°C
18°C12/28°C
18°C10/29°C
15°C11/21°C
12°C7/19°C
11°C4/20°C
13°C2/23°C
--°C/°C
29AQI
26AQI
33AQI
27AQI
2025 Days Vs Air Quality
Saint Joseph de Sorel, Quebec, Canada
91%
173
9%
18
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 277 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Saint Joseph de Sorel, Quebec, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
30AQI
19AQI
24AQI
26AQI
23AQI
18AQI
21AQI
23AQI
23AQI
22AQI
22AQI
23AQI
20AQI
24AQI
34AQI
30AQI
20AQI
26AQI
21AQI
25AQI
22AQI
24AQI
23AQI
16AQI
17AQI
26AQI
33AQI
15AQI
20AQI
18AQI
12AQI
24AQI
27AQI
16AQI
14AQI
21AQI
17AQI
21AQI
19AQI
24AQI
20AQI
14AQI
15AQI
19AQI
15AQI
27AQI
28AQI
31AQI
30AQI
44AQI
39AQI
27AQI
14AQI
12AQI
18AQI
16AQI
18AQI
11AQI
16AQI
23AQI
26AQI
34AQI
34AQI
24AQI
28AQI
21AQI
23AQI
28AQI
40AQI
42AQI
54AQI
58AQI
56AQI
56AQI
48AQI
51AQI
56AQI
28AQI
30AQI
30AQI
42AQI
44AQI
27AQI
45AQI
33AQI
33AQI
33AQI
43AQI
48AQI
42AQI
31AQI
27AQI
25AQI
25AQI
34AQI
36AQI
31AQI
34AQI
28AQI
32AQI
34AQI
39AQI
28AQI
37AQI
38AQI
37AQI
42AQI
41AQI
37AQI
36AQI
46AQI
49AQI
25AQI
34AQI
38AQI
28AQI
20AQI
27AQI
31AQI
36AQI
46AQI
54AQI
56AQI
52AQI
58AQI
45AQI
24AQI
34AQI
57AQI
64AQI
36AQI
27AQI
36AQI
51AQI
55AQI
60AQI
58AQI
58AQI
53AQI
40AQI
20AQI
32AQI
26AQI
16AQI
21AQI
20AQI
25AQI
32AQI
38AQI
31AQI
29AQI
18AQI
23AQI
24AQI
22AQI
20AQI
24AQI
37AQI
39AQI
35AQI
29AQI
29AQI
29AQI
24AQI
22AQI
24AQI
30AQI
31AQI
21AQI
30AQI
35AQI
28AQI
33AQI
35AQI
33AQI
18AQI
17AQI
24AQI
25AQI
30AQI
25AQI
19AQI
21AQI
23AQI
47AQI
50AQI
33AQI
23AQI
35AQI
49AQI
25AQI
22AQI
23AQI
38AQI
38AQI
35AQI
29AQI
36AQI
No. of days
202531AQI
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
April22AQI
Most & Least Polluted Years Over the Last 1 Years
Saint Joseph de Sorel's annual 2025 AQI (31) shows an average percentage change of NaN% (improved AQI) compared to previous years: .