North Cowichan, British Columbia, 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
North Cowichan, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (12th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 65 of Moderate air quality on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
North Cowichan, British Columbia, Canada
5 AM12th Aug 2026
8 PM
4 AM13th Aug 2026
167AQI
38AQI
50AQI
38AQI
In the last 24 hours,
North Cowichan's AQI reached its highest point of 167 at 12 PM during the Day, while the lowest point, 38, was recorded at 10 PM during the Night between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
North Cowichan, British Columbia, Canada
23°C14/29°C
22°C17/30°C
18°C15/23°C
18°C14/23°C
20°C13/28°C
24°C15/32°C
27°C18/34°C
28°C19/34°C
26°C21/31°C
22°C16/27°C
19°C16/22°C
17°C16/20°C
17°C14/21°C
18°C14/24°C
18°C11/25°C
20°C13/27°C
21°C13/28°C
19°C17/22°C
18°C11/25°C
19°C11/27°C
22°C14/29°C
22°C14/29°C
23°C14/30°C
23°C15/31°C
22°C16/28°C
21°C14/27°C
20°C13/26°C
20°C14/26°C
22°C15/30°C
22°C15/29°C
64AQI
46AQI
57AQI
45AQI
2026 Days Vs Air Quality
North Cowichan, British Columbia, Canada
90%
198
10%
23
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 225 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
North Cowichan, British Columbia, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
40AQI (US)
44AQI (US)
26AQI (US)
13AQI (US)
19AQI (US)
14AQI (US)
12AQI (US)
15AQI (US)
19AQI (US)
35AQI (US)
19AQI (US)
15AQI (US)
12AQI (US)
15AQI (US)
15AQI (US)
21AQI (US)
28AQI (US)
35AQI (US)
30AQI (US)
33AQI (US)
45AQI (US)
47AQI (US)
54AQI (US)
51AQI (US)
46AQI (US)
43AQI (US)
41AQI (US)
46AQI (US)
52AQI (US)
45AQI (US)
44AQI (US)
50AQI (US)
48AQI (US)
49AQI (US)
48AQI (US)
47AQI (US)
39AQI (US)
40AQI (US)
45AQI (US)
42AQI (US)
47AQI (US)
43AQI (US)
20AQI (US)
42AQI (US)
39AQI (US)
41AQI (US)
38AQI (US)
44AQI (US)
33AQI (US)
37AQI (US)
18AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
38AQI (US)
29AQI (US)
34AQI (US)
33AQI (US)
37AQI (US)
37AQI (US)
30AQI (US)
17AQI (US)
45AQI (US)
37AQI (US)
33AQI (US)
43AQI (US)
34AQI (US)
38AQI (US)
35AQI (US)
41AQI (US)
40AQI (US)
34AQI (US)
36AQI (US)
35AQI (US)
36AQI (US)
35AQI (US)
32AQI (US)
33AQI (US)
40AQI (US)
37AQI (US)
36AQI (US)
28AQI (US)
35AQI (US)
33AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
26AQI (US)
21AQI (US)
16AQI (US)
27AQI (US)
34AQI (US)
25AQI (US)
29AQI (US)
27AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
19AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
28AQI (US)
30AQI (US)
30AQI (US)
24AQI (US)
17AQI (US)
17AQI (US)
24AQI (US)
20AQI (US)
19AQI (US)
15AQI (US)
15AQI (US)
18AQI (US)
26AQI (US)
22AQI (US)
14AQI (US)
16AQI (US)
26AQI (US)
24AQI (US)
16AQI (US)
14AQI (US)
19AQI (US)
25AQI (US)
22AQI (US)
20AQI (US)
16AQI (US)
22AQI (US)
44AQI (US)
51AQI (US)
57AQI (US)
47AQI (US)
45AQI (US)
46AQI (US)
38AQI (US)
45AQI (US)
41AQI (US)
40AQI (US)
39AQI (US)
27AQI (US)
19AQI (US)
21AQI (US)
17AQI (US)
18AQI (US)
20AQI (US)
25AQI (US)
21AQI (US)
15AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
21AQI (US)
21AQI (US)
16AQI (US)
12AQI (US)
24AQI (US)
20AQI (US)
13AQI (US)
13AQI (US)
16AQI (US)
16AQI (US)
14AQI (US)
15AQI (US)
16AQI (US)
27AQI (US)
29AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
21AQI (US)
25AQI (US)
28AQI (US)
25AQI (US)
22AQI (US)
17AQI (US)
15AQI (US)
27AQI (US)
16AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
24AQI (US)
16AQI (US)
16AQI (US)
14AQI (US)
45AQI (US)
39AQI (US)
43AQI (US)
41AQI (US)
56AQI (US)
63AQI (US)
53AQI (US)
59AQI (US)
85AQI (US)
90AQI (US)
86AQI (US)
70AQI (US)
40AQI (US)
72AQI (US)
55AQI (US)
57AQI (US)
55AQI (US)
59AQI (US)
45AQI (US)
55AQI (US)
56AQI (US)
50AQI (US)
47AQI (US)
56AQI (US)
45AQI (US)
66AQI (US)
65AQI (US)
31AQI (US)
39AQI (US)
33AQI (US)
25AQI (US)
29AQI (US)
21AQI (US)
40AQI (US)
55AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
August55AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202527AQI (US)
Highest AQI (US) recorded in
January39AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
202418AQI (US)
Highest AQI (US) recorded in
December29AQI (US)
Lowest AQI (US) recorded in
April10AQI (US)
202318AQI (US)
Highest AQI (US) recorded in
November27AQI (US)
Lowest AQI (US) recorded in
April12AQI (US)
202220AQI (US)
Highest AQI (US) recorded in
August30AQI (US)
Lowest AQI (US) recorded in
June12AQI (US)
202120AQI (US)
Highest AQI (US) recorded in
August25AQI (US)
Lowest AQI (US) recorded in
February15AQI (US)
202021AQI (US)
Highest AQI (US) recorded in
September59AQI (US)
Lowest AQI (US) recorded in
December13AQI (US)
Most & Least Polluted Years Over the Last 7 Years
North Cowichan's annual 2026 AQI (US) (33) shows an average percentage change of 62.6% (worsened AQI (US)) compared to previous years: 2020 (21), 2021 (20), 2022 (20), 2023 (18), 2024 (18), 2025 (27).