Opfikon, Zurich, Switzerland 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
Opfikon, Zurich, Switzerland
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 22 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Opfikon, Zurich, Switzerland
5 AM2nd Aug 2025
9 PM
4 AM3rd Aug 2025
24AQI
17AQI
27AQI
18AQI
In the last 24 hours,
Opfikon's AQI reached its highest point of 27 at 2 AM during the Night, while the lowest point, 17, was recorded at 8 AM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Opfikon, Zurich, Switzerland
21°C16/28°C
21°C15/28°C
18°C12/26°C
15°C12/19°C
13°C10/16°C
15°C8/22°C
16°C8/24°C
18°C10/25°C
19°C11/27°C
20°C12/29°C
20°C15/27°C
19°C14/25°C
17°C14/22°C
19°C14/25°C
19°C11/28°C
19°C13/30°C
20°C13/30°C
18°C15/24°C
18°C13/24°C
19°C10/26°C
16°C14/19°C
15°C13/20°C
16°C12/19°C
16°C13/21°C
13°C13/15°C
15°C10/22°C
16°C10/22°C
17°C11/24°C
17°C13/22°C
14°C11/17°C
--°C/°C
23AQI
23AQI
23AQI
23AQI
2025 Days Vs Air Quality
Opfikon, Zurich, Switzerland
76%
161
24%
52
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 215 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
Opfikon, Zurich, Switzerland
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
67AQI
59AQI
77AQI
79AQI
77AQI
37AQI
29AQI
30AQI
27AQI
28AQI
33AQI
39AQI
40AQI
51AQI
55AQI
44AQI
50AQI
53AQI
61AQI
64AQI
65AQI
66AQI
62AQI
57AQI
53AQI
44AQI
36AQI
30AQI
27AQI
29AQI
27AQI
44AQI
54AQI
58AQI
66AQI
69AQI
69AQI
65AQI
66AQI
67AQI
71AQI
77AQI
71AQI
62AQI
61AQI
64AQI
66AQI
67AQI
67AQI
70AQI
75AQI
71AQI
68AQI
66AQI
56AQI
45AQI
32AQI
33AQI
37AQI
37AQI
41AQI
48AQI
54AQI
57AQI
58AQI
57AQI
57AQI
59AQI
56AQI
51AQI
42AQI
41AQI
40AQI
43AQI
40AQI
48AQI
43AQI
44AQI
45AQI
41AQI
40AQI
33AQI
32AQI
34AQI
46AQI
37AQI
37AQI
47AQI
41AQI
38AQI
31AQI
37AQI
45AQI
46AQI
39AQI
26AQI
22AQI
28AQI
33AQI
40AQI
44AQI
43AQI
43AQI
32AQI
28AQI
23AQI
16AQI
17AQI
18AQI
18AQI
15AQI
14AQI
18AQI
17AQI
15AQI
21AQI
30AQI
33AQI
32AQI
29AQI
40AQI
40AQI
46AQI
30AQI
19AQI
21AQI
31AQI
40AQI
44AQI
34AQI
26AQI
21AQI
20AQI
27AQI
33AQI
22AQI
20AQI
26AQI
29AQI
28AQI
25AQI
24AQI
24AQI
21AQI
19AQI
19AQI
22AQI
21AQI
18AQI
20AQI
24AQI
27AQI
25AQI
22AQI
23AQI
19AQI
17AQI
16AQI
31AQI
41AQI
57AQI
65AQI
56AQI
59AQI
59AQI
51AQI
33AQI
33AQI
36AQI
45AQI
48AQI
41AQI
41AQI
40AQI
32AQI
29AQI
32AQI
29AQI
25AQI
28AQI
28AQI
30AQI
35AQI
35AQI
40AQI
40AQI
32AQI
23AQI
19AQI
18AQI
21AQI
25AQI
24AQI
27AQI
27AQI
25AQI
28AQI
23AQI
21AQI
25AQI
26AQI
20AQI
16AQI
16AQI
18AQI
18AQI
21AQI
22AQI
18AQI
20AQI
22AQI
22AQI
22AQI
48AQI
61AQI
45AQI
28AQI
27AQI
36AQI
24AQI
22AQI
No. of days
202538AQI
Highest AQI recorded in
February61AQI
Lowest AQI recorded in
August22AQI
202424AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
October15AQI
202321AQI
Highest AQI recorded in
June34AQI
Lowest AQI recorded in
November16AQI
202221AQI
Highest AQI recorded in
July28AQI
Lowest AQI recorded in
November15AQI
202120AQI
Highest AQI recorded in
June25AQI
Lowest AQI recorded in
November14AQI
202019AQI
Highest AQI recorded in
April28AQI
Lowest AQI recorded in
October11AQI
Most & Least Polluted Years Over the Last 6 Years
Opfikon's annual 2025 AQI (38) shows an average percentage change of 84.1% (worsened AQI) compared to previous years: 2020 (19), 2021 (20), 2022 (21), 2023 (21), 2024 (24).