Ottawa, Ontario, 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
Ottawa, Ontario, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 25 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Ottawa, Ontario, Canada
5 AM1st Jun 2026
8 PM
4 AM2nd Jun 2026
35AQI
12AQI
33AQI
24AQI
In the last 24 hours,
Ottawa's AQI reached its highest point of 35 at 12 PM during the Day, while the lowest point, 12, was recorded at 7 PM during the Day between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Ottawa, Ontario, Canada
14°C7/24°C
15°C9/24°C
10°C7/14°C
8°C4/11°C
8°C2/12°C
12°C4/20°C
10°C6/12°C
7°C3/13°C
9°C1/17°C
8°C7/9°C
10°C6/13°C
13°C8/20°C
15°C7/26°C
19°C12/26°C
16°C11/24°C
22°C17/30°C
15°C7/17°C
9°C3/17°C
13°C5/23°C
15°C7/23°C
12°C10/14°C
16°C13/21°C
21°C12/33°C
19°C14/24°C
15°C11/19°C
14°C9/18°C
15°C9/22°C
15°C8/23°C
16°C8/22°C
18°C9/27°C
45AQI
28AQI
43AQI
31AQI
2026 Days Vs Air Quality
Ottawa, Ontario, Canada
93%
140
7%
10
Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% 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
Ottawa, Ontario, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI (US)
45AQI (US)
18AQI (US)
28AQI (US)
39AQI (US)
54AQI (US)
56AQI (US)
45AQI (US)
46AQI (US)
14AQI (US)
17AQI (US)
20AQI (US)
50AQI (US)
42AQI (US)
16AQI (US)
15AQI (US)
33AQI (US)
33AQI (US)
43AQI (US)
19AQI (US)
25AQI (US)
49AQI (US)
53AQI (US)
48AQI (US)
47AQI (US)
47AQI (US)
44AQI (US)
48AQI (US)
52AQI (US)
51AQI (US)
45AQI (US)
47AQI (US)
50AQI (US)
48AQI (US)
49AQI (US)
48AQI (US)
40AQI (US)
38AQI (US)
46AQI (US)
47AQI (US)
44AQI (US)
41AQI (US)
40AQI (US)
48AQI (US)
48AQI (US)
38AQI (US)
43AQI (US)
44AQI (US)
42AQI (US)
40AQI (US)
39AQI (US)
35AQI (US)
36AQI (US)
40AQI (US)
46AQI (US)
42AQI (US)
36AQI (US)
36AQI (US)
39AQI (US)
39AQI (US)
55AQI (US)
47AQI (US)
45AQI (US)
41AQI (US)
38AQI (US)
40AQI (US)
40AQI (US)
41AQI (US)
34AQI (US)
44AQI (US)
42AQI (US)
40AQI (US)
37AQI (US)
35AQI (US)
36AQI (US)
33AQI (US)
31AQI (US)
32AQI (US)
36AQI (US)
37AQI (US)
36AQI (US)
41AQI (US)
36AQI (US)
32AQI (US)
27AQI (US)
28AQI (US)
32AQI (US)
30AQI (US)
26AQI (US)
25AQI (US)
30AQI (US)
31AQI (US)
27AQI (US)
32AQI (US)
29AQI (US)
28AQI (US)
26AQI (US)
31AQI (US)
28AQI (US)
30AQI (US)
32AQI (US)
26AQI (US)
33AQI (US)
32AQI (US)
32AQI (US)
30AQI (US)
29AQI (US)
33AQI (US)
29AQI (US)
27AQI (US)
23AQI (US)
25AQI (US)
28AQI (US)
32AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
20AQI (US)
31AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
33AQI (US)
29AQI (US)
25AQI (US)
28AQI (US)
23AQI (US)
46AQI (US)
53AQI (US)
56AQI (US)
58AQI (US)
55AQI (US)
50AQI (US)
44AQI (US)
44AQI (US)
50AQI (US)
48AQI (US)
45AQI (US)
28AQI (US)
26AQI (US)
19AQI (US)
19AQI (US)
20AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
37AQI (US)
43AQI (US)
37AQI (US)
29AQI (US)
35AQI (US)
27AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202530AQI (US)
Highest AQI (US) recorded in
July39AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202429AQI (US)
Highest AQI (US) recorded in
February36AQI (US)
Lowest AQI (US) recorded in
November23AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
June74AQI (US)
Lowest AQI (US) recorded in
November28AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
January40AQI (US)
Lowest AQI (US) recorded in
September21AQI (US)
202130AQI (US)
Highest AQI (US) recorded in
August37AQI (US)
Lowest AQI (US) recorded in
September20AQI (US)
202026AQI (US)
Highest AQI (US) recorded in
November36AQI (US)
Lowest AQI (US) recorded in
October21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Ottawa's annual 2026 AQI (US) (36) shows an average percentage change of 19.9% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (30), 2022 (30), 2023 (37), 2024 (29), 2025 (30).