Dortmund, 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!
October Air Quality Analysis
Dortmund, North Rhine Westphalia, Germany
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 46 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Dortmund, North Rhine Westphalia, Germany
7 AM3rd Oct 2025
7 PM
6 AM4th Oct 2025
50AQI
35AQI
44AQI
37AQI
In the last 24 hours,
Dortmund's AQI reached its highest point of 50 at 7 AM during the Day, while the lowest point, 35, was recorded at 1 PM during the Day between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Dortmund, North Rhine Westphalia, Germany
21°C17/24°C
17°C14/22°C
18°C13/24°C
21°C15/27°C
18°C16/21°C
14°C12/16°C
16°C11/21°C
17°C14/20°C
15°C12/18°C
15°C13/18°C
15°C11/19°C
18°C15/21°C
15°C14/17°C
15°C12/17°C
19°C16/23°C
20°C15/27°C
22°C18/29°C
16°C13/18°C
13°C11/16°C
13°C9/17°C
13°C8/18°C
10°C9/11°C
12°C8/17°C
14°C11/18°C
15°C11/20°C
15°C12/18°C
13°C11/17°C
12°C8/17°C
12°C8/17°C
12°C9/15°C
--°C/°C
31AQI
29AQI
30AQI
29AQI
2025 Days Vs Air Quality
Dortmund, North Rhine Westphalia, Germany
70%
194
28%
77
2%
5
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 277 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
Dortmund, North Rhine Westphalia, Germany
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI
32AQI
46AQI
51AQI
45AQI
22AQI
21AQI
24AQI
28AQI
48AQI
67AQI
73AQI
56AQI
55AQI
67AQI
62AQI
59AQI
68AQI
81AQI
90AQI
87AQI
81AQI
56AQI
34AQI
22AQI
38AQI
22AQI
23AQI
21AQI
24AQI
42AQI
62AQI
66AQI
74AQI
83AQI
68AQI
74AQI
57AQI
71AQI
96AQI
115AQI
109AQI
70AQI
107AQI
114AQI
76AQI
56AQI
59AQI
68AQI
66AQI
64AQI
63AQI
52AQI
46AQI
29AQI
32AQI
51AQI
36AQI
44AQI
48AQI
63AQI
64AQI
71AQI
80AQI
67AQI
59AQI
66AQI
90AQI
98AQI
108AQI
72AQI
58AQI
43AQI
44AQI
57AQI
38AQI
31AQI
45AQI
58AQI
60AQI
58AQI
64AQI
60AQI
98AQI
93AQI
50AQI
79AQI
60AQI
39AQI
33AQI
32AQI
31AQI
49AQI
53AQI
55AQI
25AQI
21AQI
32AQI
52AQI
49AQI
63AQI
69AQI
41AQI
53AQI
54AQI
35AQI
46AQI
30AQI
31AQI
63AQI
44AQI
34AQI
48AQI
41AQI
56AQI
59AQI
33AQI
34AQI
51AQI
45AQI
50AQI
50AQI
54AQI
34AQI
24AQI
23AQI
31AQI
29AQI
23AQI
25AQI
29AQI
21AQI
27AQI
38AQI
39AQI
28AQI
40AQI
42AQI
38AQI
36AQI
39AQI
40AQI
28AQI
30AQI
23AQI
27AQI
27AQI
19AQI
22AQI
23AQI
41AQI
36AQI
44AQI
31AQI
43AQI
25AQI
18AQI
17AQI
19AQI
25AQI
54AQI
47AQI
42AQI
50AQI
56AQI
51AQI
36AQI
43AQI
45AQI
47AQI
29AQI
29AQI
28AQI
39AQI
28AQI
29AQI
30AQI
28AQI
32AQI
29AQI
27AQI
28AQI
39AQI
39AQI
25AQI
26AQI
24AQI
21AQI
23AQI
27AQI
30AQI
26AQI
24AQI
31AQI
47AQI
50AQI
32AQI
33AQI
37AQI
41AQI
37AQI
24AQI
20AQI
25AQI
31AQI
37AQI
34AQI
48AQI
32AQI
31AQI
28AQI
26AQI
25AQI
22AQI
22AQI
23AQI
24AQI
24AQI
29AQI
30AQI
46AQI
42AQI
45AQI
47AQI
58AQI
61AQI
62AQI
52AQI
38AQI
25AQI
28AQI
34AQI
32AQI
23AQI
22AQI
22AQI
22AQI
27AQI
36AQI
43AQI
28AQI
19AQI
20AQI
19AQI
18AQI
17AQI
18AQI
20AQI
22AQI
23AQI
25AQI
36AQI
32AQI
23AQI
18AQI
17AQI
18AQI
16AQI
20AQI
21AQI
21AQI
24AQI
27AQI
34AQI
22AQI
20AQI
17AQI
18AQI
23AQI
34AQI
46AQI
59AQI
70AQI
69AQI
53AQI
46AQI
48AQI
68AQI
63AQI
44AQI
32AQI
35AQI
31AQI
33AQI
26AQI
56AQI
No. of days
202542AQI
Highest AQI recorded in
February68AQI
Lowest AQI recorded in
September26AQI
202439AQI
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
April29AQI
202337AQI
Highest AQI recorded in
February71AQI
Lowest AQI recorded in
March26AQI
202242AQI
Highest AQI recorded in
March64AQI
Lowest AQI recorded in
August27AQI
202138AQI
Highest AQI recorded in
November50AQI
Lowest AQI recorded in
January30AQI
202028AQI
Highest AQI recorded in
November37AQI
Lowest AQI recorded in
July21AQI
Most & Least Polluted Years Over the Last 6 Years
Dortmund's annual 2025 AQI (42) shows an average percentage change of 17.02% (worsened AQI) compared to previous years: 2020 (28), 2021 (38), 2022 (42), 2023 (37), 2024 (39).