Saint Jean sur Richelieu, Quebec, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Saint Jean sur Richelieu, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (23rd August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 29 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 24th Aug - 25th Aug 2025
Saint Jean sur Richelieu, Quebec, Canada
5 AM24th Aug 2025
8 PM
4 AM25th Aug 2025
28AQI
26AQI
29AQI
26AQI
In the last 24 hours,
Saint Jean sur Richelieu's AQI reached its highest point of 29 at 12 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 24th Aug and 25th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Saint Jean sur Richelieu, Quebec, Canada
22°C13/31°C
22°C18/29°C
25°C18/33°C
24°C19/28°C
22°C16/29°C
18°C13/23°C
17°C9/25°C
19°C7/29°C
22°C12/32°C
21°C13/28°C
19°C10/28°C
19°C9/30°C
22°C13/31°C
23°C16/32°C
25°C16/33°C
25°C18/34°C
27°C19/35°C
26°C17/36°C
25°C20/32°C
22°C15/28°C
19°C10/28°C
22°C12/33°C
16°C10/20°C
13°C4/23°C
16°C8/24°C
19°C14/26°C
19°C10/28°C
21°C11/31°C
23°C15/29°C
22°C16/27°C
--°C/°C
41AQI
41AQI
41AQI
41AQI
2025 Days Vs Air Quality
Saint Jean sur Richelieu, Quebec, Canada
88%
132
12%
18
Total number of days with different AQI categories in last 237 days in 2025 (128 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 237 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Saint Jean sur Richelieu, Quebec, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
19AQI
18AQI
22AQI
27AQI
17AQI
18AQI
19AQI
19AQI
19AQI
19AQI
18AQI
19AQI
17AQI
24AQI
27AQI
30AQI
24AQI
28AQI
26AQI
23AQI
26AQI
28AQI
21AQI
17AQI
18AQI
18AQI
13AQI
19AQI
21AQI
20AQI
14AQI
19AQI
24AQI
16AQI
17AQI
22AQI
16AQI
22AQI
18AQI
19AQI
16AQI
16AQI
15AQI
15AQI
16AQI
20AQI
27AQI
32AQI
27AQI
31AQI
30AQI
20AQI
14AQI
14AQI
16AQI
15AQI
13AQI
12AQI
15AQI
19AQI
22AQI
28AQI
27AQI
22AQI
27AQI
13AQI
16AQI
22AQI
38AQI
44AQI
52AQI
59AQI
59AQI
59AQI
41AQI
48AQI
56AQI
28AQI
29AQI
31AQI
41AQI
38AQI
21AQI
31AQI
21AQI
26AQI
29AQI
38AQI
50AQI
41AQI
27AQI
29AQI
25AQI
25AQI
25AQI
31AQI
28AQI
41AQI
27AQI
23AQI
37AQI
45AQI
29AQI
37AQI
40AQI
42AQI
49AQI
39AQI
33AQI
37AQI
45AQI
46AQI
21AQI
28AQI
34AQI
32AQI
18AQI
22AQI
30AQI
40AQI
51AQI
57AQI
56AQI
54AQI
61AQI
50AQI
23AQI
28AQI
55AQI
75AQI
44AQI
30AQI
40AQI
52AQI
59AQI
61AQI
54AQI
53AQI
51AQI
42AQI
23AQI
31AQI
29AQI
15AQI
19AQI
18AQI
20AQI
29AQI
29AQI
21AQI
21AQI
20AQI
35AQI
38AQI
38AQI
No. of days
202530AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
May20AQI
Most & Least Polluted Years Over the Last 1 Years
Saint Jean sur Richelieu's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .