Toronto Downtown, Toronto, Ontario, 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
Toronto Downtown, Toronto, Ontario, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 31 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Toronto Downtown, Toronto, Ontario, Canada
6 AM14th Aug 2026
8 PM
5 AM15th Aug 2026
50AQI
33AQI
44AQI
25AQI
In the last 24 hours,
Toronto Downtown's AQI reached its highest point of 50 at 9 AM during the Day, while the lowest point, 25, was recorded at 3 AM during the Night between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Toronto Downtown, Toronto, Ontario, Canada
23°C18/29°C
23°C19/31°C
21°C15/28°C
21°C13/28°C
21°C18/25°C
18°C14/24°C
19°C12/26°C
20°C13/28°C
21°C15/29°C
23°C17/29°C
23°C18/31°C
23°C20/26°C
22°C17/29°C
23°C16/31°C
24°C15/32°C
25°C20/31°C
21°C19/22°C
21°C17/28°C
21°C14/29°C
23°C16/31°C
24°C18/31°C
23°C21/28°C
23°C20/30°C
23°C16/31°C
23°C19/28°C
24°C18/33°C
21°C17/28°C
23°C17/31°C
23°C17/29°C
21°C18/25°C
48AQI
37AQI
44AQI
38AQI
2026 Days Vs Air Quality
Toronto Downtown, Toronto, Ontario, Canada
90%
201
10%
22
0.4%
1
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 227 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
Toronto Downtown, Toronto, Ontario, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
12AQI (US)
10AQI (US)
12AQI (US)
41AQI (US)
46AQI (US)
77AQI (US)
68AQI (US)
74AQI (US)
34AQI (US)
22AQI (US)
19AQI (US)
27AQI (US)
31AQI (US)
29AQI (US)
22AQI (US)
25AQI (US)
39AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
31AQI (US)
51AQI (US)
56AQI (US)
48AQI (US)
47AQI (US)
48AQI (US)
39AQI (US)
45AQI (US)
50AQI (US)
55AQI (US)
44AQI (US)
44AQI (US)
53AQI (US)
50AQI (US)
48AQI (US)
51AQI (US)
49AQI (US)
40AQI (US)
44AQI (US)
46AQI (US)
45AQI (US)
39AQI (US)
39AQI (US)
48AQI (US)
50AQI (US)
44AQI (US)
46AQI (US)
58AQI (US)
43AQI (US)
42AQI (US)
41AQI (US)
38AQI (US)
36AQI (US)
39AQI (US)
46AQI (US)
44AQI (US)
35AQI (US)
39AQI (US)
36AQI (US)
39AQI (US)
60AQI (US)
49AQI (US)
49AQI (US)
41AQI (US)
35AQI (US)
39AQI (US)
38AQI (US)
37AQI (US)
37AQI (US)
42AQI (US)
39AQI (US)
39AQI (US)
35AQI (US)
33AQI (US)
38AQI (US)
33AQI (US)
32AQI (US)
39AQI (US)
39AQI (US)
40AQI (US)
37AQI (US)
40AQI (US)
37AQI (US)
38AQI (US)
37AQI (US)
28AQI (US)
31AQI (US)
31AQI (US)
28AQI (US)
34AQI (US)
32AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
30AQI (US)
31AQI (US)
28AQI (US)
32AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
26AQI (US)
30AQI (US)
33AQI (US)
42AQI (US)
35AQI (US)
29AQI (US)
35AQI (US)
28AQI (US)
27AQI (US)
29AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
33AQI (US)
37AQI (US)
28AQI (US)
27AQI (US)
29AQI (US)
31AQI (US)
27AQI (US)
26AQI (US)
31AQI (US)
25AQI (US)
43AQI (US)
48AQI (US)
77AQI (US)
61AQI (US)
46AQI (US)
51AQI (US)
44AQI (US)
44AQI (US)
50AQI (US)
43AQI (US)
46AQI (US)
35AQI (US)
29AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
29AQI (US)
35AQI (US)
47AQI (US)
44AQI (US)
27AQI (US)
25AQI (US)
41AQI (US)
43AQI (US)
38AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
33AQI (US)
43AQI (US)
39AQI (US)
36AQI (US)
32AQI (US)
31AQI (US)
36AQI (US)
32AQI (US)
40AQI (US)
35AQI (US)
27AQI (US)
24AQI (US)
30AQI (US)
27AQI (US)
38AQI (US)
30AQI (US)
46AQI (US)
61AQI (US)
64AQI (US)
56AQI (US)
59AQI (US)
80AQI (US)
89AQI (US)
123AQI (US)
48AQI (US)
37AQI (US)
68AQI (US)
25AQI (US)
23AQI (US)
30AQI (US)
28AQI (US)
43AQI (US)
54AQI (US)
54AQI (US)
22AQI (US)
25AQI (US)
35AQI (US)
42AQI (US)
37AQI (US)
29AQI (US)
24AQI (US)
29AQI (US)
39AQI (US)
48AQI (US)
47AQI (US)
29AQI (US)
33AQI (US)
38AQI (US)
41AQI (US)
47AQI (US)
41AQI (US)
31AQI (US)
38AQI (US)
44AQI (US)
38AQI (US)
30AQI (US)
37AQI (US)
31AQI (US)
45AQI (US)
37AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
July45AQI (US)
Lowest AQI (US) recorded in
April30AQI (US)
202536AQI (US)
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
May25AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
November24AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
June58AQI (US)
Lowest AQI (US) recorded in
November29AQI (US)
202235AQI (US)
Highest AQI (US) recorded in
November40AQI (US)
Lowest AQI (US) recorded in
August18AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
July50AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
June38AQI (US)
Lowest AQI (US) recorded in
October27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Toronto Downtown's annual 2026 AQI (US) (38) shows an average percentage change of 9.9% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (36), 2022 (35), 2023 (37), 2024 (32), 2025 (36).