Estevan, Saskatchewan, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Estevan, Saskatchewan, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 56 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Estevan, Saskatchewan, Canada
7 AM4th Oct 2025
7 PM
6 AM5th Oct 2025
50AQI
38AQI
62AQI
30AQI
In the last 24 hours,
Estevan's AQI reached its highest point of 62 at 10 PM during the Night, while the lowest point, 30, was recorded at 6 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Estevan, Saskatchewan, Canada
9°C6/12°C
10°C1/18°C
13°C3/24°C
18°C9/27°C
19°C9/26°C
20°C11/28°C
22°C16/30°C
19°C17/25°C
18°C18/19°C
20°C17/23°C
18°C15/20°C
18°C13/25°C
17°C12/21°C
14°C13/17°C
13°C12/16°C
16°C7/26°C
18°C11/26°C
17°C12/25°C
16°C8/24°C
17°C9/28°C
14°C8/21°C
15°C10/21°C
14°C4/26°C
18°C9/30°C
17°C8/25°C
21°C15/29°C
19°C13/27°C
17°C9/28°C
18°C10/29°C
14°C9/18°C
--°C/°C
46AQI
46AQI
51AQI
46AQI
2025 Days Vs Air Quality
Estevan, Saskatchewan, Canada
84%
233
15%
41
1%
3
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 278 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
Estevan, Saskatchewan, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38AQI
43AQI
52AQI
46AQI
40AQI
37AQI
45AQI
34AQI
36AQI
49AQI
29AQI
47AQI
59AQI
44AQI
33AQI
28AQI
25AQI
25AQI
23AQI
26AQI
20AQI
22AQI
21AQI
20AQI
21AQI
20AQI
21AQI
21AQI
21AQI
20AQI
22AQI
19AQI
20AQI
19AQI
19AQI
20AQI
22AQI
23AQI
23AQI
23AQI
23AQI
23AQI
23AQI
21AQI
24AQI
22AQI
21AQI
20AQI
21AQI
21AQI
21AQI
21AQI
22AQI
23AQI
21AQI
22AQI
23AQI
20AQI
20AQI
22AQI
21AQI
22AQI
22AQI
21AQI
21AQI
20AQI
20AQI
21AQI
20AQI
23AQI
20AQI
21AQI
23AQI
17AQI
17AQI
16AQI
21AQI
22AQI
15AQI
15AQI
15AQI
18AQI
15AQI
21AQI
20AQI
19AQI
18AQI
16AQI
16AQI
19AQI
18AQI
25AQI
21AQI
21AQI
16AQI
19AQI
16AQI
14AQI
15AQI
17AQI
19AQI
19AQI
20AQI
17AQI
16AQI
19AQI
17AQI
15AQI
18AQI
15AQI
18AQI
16AQI
16AQI
18AQI
19AQI
24AQI
23AQI
21AQI
18AQI
17AQI
17AQI
19AQI
17AQI
18AQI
24AQI
18AQI
24AQI
21AQI
27AQI
33AQI
25AQI
23AQI
27AQI
25AQI
18AQI
15AQI
14AQI
17AQI
17AQI
14AQI
13AQI
14AQI
16AQI
17AQI
20AQI
19AQI
21AQI
22AQI
30AQI
29AQI
48AQI
52AQI
39AQI
46AQI
45AQI
41AQI
43AQI
42AQI
48AQI
56AQI
59AQI
93AQI
85AQI
80AQI
43AQI
32AQI
33AQI
36AQI
33AQI
33AQI
33AQI
31AQI
31AQI
27AQI
35AQI
34AQI
25AQI
27AQI
24AQI
19AQI
19AQI
22AQI
25AQI
23AQI
27AQI
24AQI
27AQI
32AQI
35AQI
35AQI
29AQI
39AQI
70AQI
52AQI
34AQI
45AQI
47AQI
63AQI
53AQI
48AQI
44AQI
31AQI
58AQI
53AQI
65AQI
52AQI
42AQI
31AQI
32AQI
54AQI
85AQI
117AQI
109AQI
98AQI
92AQI
63AQI
47AQI
34AQI
36AQI
29AQI
26AQI
113AQI
91AQI
43AQI
60AQI
41AQI
31AQI
34AQI
29AQI
30AQI
38AQI
44AQI
43AQI
31AQI
32AQI
30AQI
33AQI
41AQI
50AQI
56AQI
52AQI
47AQI
46AQI
51AQI
69AQI
75AQI
55AQI
27AQI
44AQI
49AQI
56AQI
64AQI
61AQI
59AQI
57AQI
50AQI
54AQI
43AQI
39AQI
55AQI
41AQI
26AQI
25AQI
34AQI
36AQI
45AQI
44AQI
53AQI
49AQI
58AQI
66AQI
49AQI
47AQI
46AQI
46AQI
57AQI
56AQI
32AQI
21AQI
19AQI
18AQI
21AQI
41AQI
45AQI
50AQI
49AQI
51AQI
No. of days
202533AQI
Highest AQI recorded in
October51AQI
Lowest AQI recorded in
April18AQI
202426AQI
Highest AQI recorded in
July42AQI
Lowest AQI recorded in
January18AQI
202332AQI
Highest AQI recorded in
September52AQI
Lowest AQI recorded in
December15AQI
202224AQI
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
April19AQI
202128AQI
Highest AQI recorded in
July56AQI
Lowest AQI recorded in
April18AQI
202024AQI
Highest AQI recorded in
September39AQI
Lowest AQI recorded in
December15AQI
Most & Least Polluted Years Over the Last 6 Years
Estevan's annual 2025 AQI (33) shows an average percentage change of 26.5% (worsened AQI) compared to previous years: 2020 (24), 2021 (28), 2022 (24), 2023 (32), 2024 (26).