Winnipeg, Manitoba, 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
Winnipeg, Manitoba, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 104 of Poor air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Winnipeg, Manitoba, Canada
5 AM3rd Aug 2025
9 PM
4 AM4th Aug 2025
110AQI
87AQI
108AQI
74AQI
In the last 24 hours,
Winnipeg's AQI reached its highest point of 110 at 6 AM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Winnipeg, Manitoba, Canada
23°C15/29°C
18°C12/26°C
17°C12/23°C
22°C12/31°C
24°C13/33°C
27°C21/34°C
21°C17/24°C
22°C13/31°C
24°C15/32°C
19°C16/24°C
19°C13/25°C
17°C8/23°C
18°C7/24°C
18°C11/24°C
20°C10/30°C
18°C12/22°C
22°C15/30°C
21°C18/24°C
21°C15/30°C
22°C14/30°C
24°C15/36°C
28°C22/35°C
22°C19/24°C
20°C14/25°C
18°C13/24°C
20°C11/28°C
21°C10/30°C
21°C11/30°C
23°C15/31°C
23°C14/31°C
--°C/°C
63AQI
63AQI
61AQI
61AQI
2025 Days Vs Air Quality
Winnipeg, Manitoba, Canada
85%
183
13%
28
1%
3
0.4%
1
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 216 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
Winnipeg, Manitoba, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI
34AQI
42AQI
49AQI
38AQI
41AQI
43AQI
47AQI
55AQI
48AQI
38AQI
52AQI
51AQI
56AQI
53AQI
49AQI
42AQI
41AQI
49AQI
53AQI
38AQI
39AQI
24AQI
24AQI
23AQI
20AQI
20AQI
20AQI
22AQI
29AQI
26AQI
28AQI
23AQI
25AQI
22AQI
23AQI
25AQI
25AQI
30AQI
30AQI
33AQI
30AQI
33AQI
29AQI
34AQI
30AQI
27AQI
30AQI
25AQI
26AQI
23AQI
26AQI
30AQI
32AQI
26AQI
23AQI
24AQI
21AQI
20AQI
20AQI
25AQI
34AQI
35AQI
25AQI
25AQI
24AQI
25AQI
25AQI
27AQI
27AQI
21AQI
34AQI
52AQI
58AQI
39AQI
39AQI
32AQI
37AQI
26AQI
26AQI
26AQI
24AQI
23AQI
24AQI
24AQI
19AQI
20AQI
18AQI
20AQI
18AQI
20AQI
20AQI
18AQI
24AQI
20AQI
21AQI
19AQI
18AQI
20AQI
23AQI
26AQI
26AQI
32AQI
27AQI
18AQI
18AQI
21AQI
21AQI
18AQI
19AQI
14AQI
17AQI
15AQI
18AQI
19AQI
19AQI
18AQI
20AQI
16AQI
20AQI
19AQI
18AQI
16AQI
19AQI
18AQI
20AQI
18AQI
25AQI
27AQI
27AQI
22AQI
25AQI
29AQI
29AQI
28AQI
22AQI
20AQI
17AQI
16AQI
15AQI
15AQI
16AQI
16AQI
20AQI
24AQI
24AQI
24AQI
23AQI
26AQI
27AQI
31AQI
30AQI
35AQI
43AQI
46AQI
51AQI
44AQI
52AQI
49AQI
55AQI
54AQI
58AQI
55AQI
46AQI
34AQI
28AQI
30AQI
32AQI
39AQI
37AQI
31AQI
33AQI
33AQI
33AQI
36AQI
34AQI
30AQI
27AQI
25AQI
23AQI
21AQI
27AQI
32AQI
28AQI
28AQI
34AQI
36AQI
34AQI
29AQI
32AQI
30AQI
31AQI
48AQI
65AQI
75AQI
76AQI
53AQI
45AQI
51AQI
46AQI
53AQI
52AQI
62AQI
52AQI
57AQI
61AQI
58AQI
50AQI
48AQI
57AQI
89AQI
130AQI
159AQI
144AQI
104AQI
39AQI
27AQI
28AQI
20AQI
22AQI
38AQI
51AQI
136AQI
No. of days
202534AQI
Highest AQI recorded in
August136AQI
Lowest AQI recorded in
April20AQI
202418AQI
Highest AQI recorded in
December37AQI
Lowest AQI recorded in
February4AQI
202332AQI
Highest AQI recorded in
June55AQI
Lowest AQI recorded in
December14AQI
202227AQI
Highest AQI recorded in
August39AQI
Lowest AQI recorded in
June15AQI
202131AQI
Highest AQI recorded in
July69AQI
Lowest AQI recorded in
March21AQI
202025AQI
Highest AQI recorded in
December27AQI
Lowest AQI recorded in
October12AQI
Most & Least Polluted Years Over the Last 6 Years
Winnipeg's annual 2025 AQI (34) shows an average percentage change of 32.3% (worsened AQI) compared to previous years: 2020 (25), 2021 (31), 2022 (27), 2023 (32), 2024 (18).