Duisburg, Duisburg, North Rhine Westphalia, Germany Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Duisburg, Duisburg, North Rhine Westphalia, Germany
AQI Trends: Highest and Lowest
Same Day Analysis (12th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 18 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: 12th Sep - 13th Sep 2025
Duisburg, Duisburg, North Rhine Westphalia, Germany
6 AM12th Sep 2025
8 PM
5 AM13th Sep 2025
21AQI
16AQI
19AQI
15AQI
In the last 24 hours,
Duisburg's AQI reached its highest point of 21 at 11 AM during the Day, while the lowest point, 15, was recorded at 5 AM during the Night between 12th Sep and 13th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Duisburg, Duisburg, North Rhine Westphalia, Germany
27°C22/35°C
24°C19/31°C
20°C16/24°C
16°C11/19°C
22°C16/27°C
23°C17/30°C
20°C14/26°C
19°C14/25°C
16°C12/19°C
16°C13/20°C
16°C11/22°C
18°C11/24°C
22°C14/30°C
21°C16/27°C
20°C17/26°C
19°C15/26°C
19°C14/24°C
20°C17/24°C
18°C16/23°C
19°C15/23°C
20°C17/24°C
20°C16/25°C
17°C13/22°C
18°C13/24°C
21°C16/27°C
19°C16/23°C
14°C11/15°C
16°C11/21°C
17°C14/20°C
15°C13/19°C
--°C/°C
29AQI
24AQI
28AQI
25AQI
2025 Days Vs Air Quality
Duisburg, Duisburg, North Rhine Westphalia, Germany
75%
192
25%
63
Total number of days with different AQI categories in last 256 days in 2025 (109 days remaining)
Under WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 256 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
Duisburg, Duisburg, North Rhine Westphalia, Germany
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
41AQI
35AQI
34AQI
39AQI
39AQI
32AQI
26AQI
26AQI
26AQI
31AQI
47AQI
52AQI
51AQI
52AQI
56AQI
56AQI
56AQI
58AQI
63AQI
68AQI
71AQI
69AQI
62AQI
56AQI
48AQI
40AQI
31AQI
26AQI
24AQI
24AQI
28AQI
38AQI
45AQI
54AQI
61AQI
62AQI
62AQI
59AQI
60AQI
67AQI
76AQI
78AQI
69AQI
75AQI
78AQI
74AQI
67AQI
63AQI
64AQI
63AQI
62AQI
59AQI
55AQI
51AQI
44AQI
39AQI
40AQI
36AQI
36AQI
40AQI
50AQI
54AQI
56AQI
60AQI
59AQI
57AQI
58AQI
65AQI
71AQI
73AQI
64AQI
57AQI
53AQI
48AQI
46AQI
40AQI
36AQI
39AQI
48AQI
52AQI
50AQI
49AQI
51AQI
61AQI
63AQI
58AQI
62AQI
57AQI
50AQI
43AQI
38AQI
35AQI
39AQI
43AQI
44AQI
28AQI
25AQI
31AQI
50AQI
49AQI
54AQI
62AQI
45AQI
52AQI
50AQI
39AQI
38AQI
32AQI
31AQI
50AQI
44AQI
38AQI
43AQI
44AQI
52AQI
54AQI
37AQI
35AQI
44AQI
41AQI
43AQI
50AQI
54AQI
34AQI
26AQI
25AQI
30AQI
27AQI
23AQI
25AQI
24AQI
23AQI
26AQI
34AQI
38AQI
31AQI
36AQI
39AQI
34AQI
30AQI
35AQI
37AQI
29AQI
27AQI
25AQI
26AQI
26AQI
21AQI
22AQI
24AQI
35AQI
34AQI
37AQI
31AQI
36AQI
24AQI
20AQI
17AQI
19AQI
24AQI
50AQI
45AQI
40AQI
46AQI
53AQI
47AQI
35AQI
35AQI
38AQI
40AQI
32AQI
29AQI
29AQI
33AQI
28AQI
27AQI
26AQI
26AQI
25AQI
22AQI
25AQI
27AQI
37AQI
37AQI
27AQI
24AQI
22AQI
20AQI
21AQI
24AQI
27AQI
27AQI
28AQI
29AQI
37AQI
40AQI
30AQI
29AQI
31AQI
36AQI
34AQI
25AQI
21AQI
21AQI
25AQI
28AQI
29AQI
38AQI
30AQI
28AQI
26AQI
24AQI
24AQI
21AQI
21AQI
23AQI
22AQI
24AQI
27AQI
28AQI
35AQI
36AQI
42AQI
46AQI
55AQI
59AQI
55AQI
50AQI
34AQI
23AQI
27AQI
29AQI
27AQI
21AQI
20AQI
20AQI
21AQI
28AQI
31AQI
34AQI
25AQI
19AQI
19AQI
18AQI
18AQI
17AQI
18AQI
19AQI
21AQI
22AQI
24AQI
25AQI
25AQI
21AQI
18AQI
44AQI
58AQI
54AQI
42AQI
31AQI
32AQI
28AQI
31AQI
21AQI
No. of days
202539AQI
Highest AQI recorded in
February58AQI
Lowest AQI recorded in
September21AQI
202434AQI
Highest AQI recorded in
September43AQI
Lowest AQI recorded in
April17AQI
202315AQI
Highest AQI recorded in
June20AQI
Lowest AQI recorded in
November11AQI
202218AQI
Highest AQI recorded in
March24AQI
Lowest AQI recorded in
February11AQI
202120AQI
Highest AQI recorded in
June26AQI
Lowest AQI recorded in
December11AQI
202020AQI
Highest AQI recorded in
March29AQI
Lowest AQI recorded in
October15AQI
Most & Least Polluted Years Over the Last 6 Years
Duisburg's annual 2025 AQI (39) shows an average percentage change of 96.3% (worsened AQI) compared to previous years: 2020 (20), 2021 (20), 2022 (18), 2023 (15), 2024 (34).