Courtenay, British Columbia, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Courtenay, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 25 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Courtenay, British Columbia, Canada
5 AM1st Jun 2026
9 PM
4 AM2nd Jun 2026
54AQI
18AQI
34AQI
11AQI
In the last 24 hours,
Courtenay's AQI reached its highest point of 54 at 9 PM during the Day, while the lowest point, 11, was recorded at 2 AM during the Night between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Courtenay, British Columbia, Canada
17°C13/24°C
15°C12/19°C
13°C11/16°C
13°C9/17°C
14°C11/17°C
13°C10/18°C
14°C11/17°C
13°C10/17°C
14°C10/18°C
14°C12/17°C
12°C9/15°C
11°C10/13°C
11°C8/16°C
13°C9/17°C
14°C11/17°C
13°C10/15°C
12°C7/17°C
14°C11/18°C
15°C11/18°C
14°C11/17°C
14°C9/18°C
13°C12/15°C
14°C9/19°C
15°C12/19°C
15°C12/20°C
13°C10/17°C
13°C10/18°C
14°C11/19°C
16°C11/23°C
17°C13/22°C
41AQI
27AQI
33AQI
27AQI
2026 Days Vs Air Quality
Courtenay, British Columbia, Canada
94%
141
6%
9
Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 153 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
Courtenay, British Columbia, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI (US)
58AQI (US)
32AQI (US)
22AQI (US)
33AQI (US)
30AQI (US)
42AQI (US)
38AQI (US)
39AQI (US)
18AQI (US)
14AQI (US)
13AQI (US)
16AQI (US)
17AQI (US)
25AQI (US)
30AQI (US)
43AQI (US)
47AQI (US)
49AQI (US)
35AQI (US)
46AQI (US)
48AQI (US)
56AQI (US)
54AQI (US)
48AQI (US)
47AQI (US)
43AQI (US)
46AQI (US)
52AQI (US)
46AQI (US)
44AQI (US)
50AQI (US)
50AQI (US)
50AQI (US)
52AQI (US)
51AQI (US)
44AQI (US)
42AQI (US)
46AQI (US)
42AQI (US)
46AQI (US)
43AQI (US)
20AQI (US)
41AQI (US)
39AQI (US)
40AQI (US)
39AQI (US)
45AQI (US)
34AQI (US)
37AQI (US)
19AQI (US)
38AQI (US)
34AQI (US)
35AQI (US)
38AQI (US)
30AQI (US)
33AQI (US)
33AQI (US)
36AQI (US)
37AQI (US)
29AQI (US)
16AQI (US)
47AQI (US)
36AQI (US)
33AQI (US)
42AQI (US)
34AQI (US)
39AQI (US)
35AQI (US)
40AQI (US)
40AQI (US)
34AQI (US)
36AQI (US)
35AQI (US)
36AQI (US)
36AQI (US)
32AQI (US)
34AQI (US)
40AQI (US)
36AQI (US)
37AQI (US)
28AQI (US)
36AQI (US)
34AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
26AQI (US)
21AQI (US)
16AQI (US)
27AQI (US)
34AQI (US)
27AQI (US)
29AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
31AQI (US)
28AQI (US)
30AQI (US)
34AQI (US)
30AQI (US)
34AQI (US)
36AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
34AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
30AQI (US)
30AQI (US)
33AQI (US)
28AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
22AQI (US)
29AQI (US)
30AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
30AQI (US)
23AQI (US)
19AQI (US)
25AQI (US)
44AQI (US)
51AQI (US)
57AQI (US)
51AQI (US)
46AQI (US)
45AQI (US)
37AQI (US)
44AQI (US)
40AQI (US)
39AQI (US)
38AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
30AQI (US)
25AQI (US)
38AQI (US)
40AQI (US)
33AQI (US)
30AQI (US)
33AQI (US)
28AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
February40AQI (US)
Lowest AQI (US) recorded in
June28AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
January50AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202424AQI (US)
Highest AQI (US) recorded in
December47AQI (US)
Lowest AQI (US) recorded in
June14AQI (US)
202326AQI (US)
Highest AQI (US) recorded in
November34AQI (US)
Lowest AQI (US) recorded in
July16AQI (US)
202229AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June16AQI (US)
202129AQI (US)
Highest AQI (US) recorded in
December42AQI (US)
Lowest AQI (US) recorded in
May17AQI (US)
202031AQI (US)
Highest AQI (US) recorded in
September57AQI (US)
Lowest AQI (US) recorded in
June11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Courtenay's annual 2026 AQI (US) (35) shows an average percentage change of 23.4% (worsened AQI (US)) compared to previous years: 2020 (31), 2021 (29), 2022 (29), 2023 (26), 2024 (24), 2025 (33).