Krefeld, 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
Krefeld, North Rhine Westphalia, Germany
AQI Trends: Highest and Lowest
Same Day Analysis (12th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 75 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Oct - 13th Oct 2025
Krefeld, North Rhine Westphalia, Germany
7 AM12th Oct 2025
7 PM
6 AM13th Oct 2025
89AQI
61AQI
58AQI
42AQI
In the last 24 hours,
Krefeld's AQI reached its highest point of 89 at 7 AM during the Day, while the lowest point, 42, was recorded at 11 PM during the Night between 12th Oct and 13th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Krefeld, North Rhine Westphalia, Germany
15°C13/19°C
16°C11/20°C
18°C15/22°C
16°C14/19°C
15°C12/17°C
19°C15/24°C
21°C15/29°C
22°C18/30°C
16°C13/17°C
13°C11/16°C
14°C10/18°C
14°C10/18°C
10°C9/11°C
13°C10/18°C
14°C12/19°C
16°C11/21°C
16°C13/20°C
14°C11/18°C
13°C9/18°C
13°C9/17°C
13°C10/16°C
13°C11/17°C
12°C10/14°C
12°C10/15°C
16°C13/19°C
15°C13/16°C
13°C11/17°C
15°C12/19°C
15°C12/16°C
15°C12/18°C
--°C/°C
37AQI
37AQI
36AQI
36AQI
2025 Days Vs Air Quality
Krefeld, North Rhine Westphalia, Germany
71%
203
27%
78
1%
4
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2025, 71% of 286 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
Krefeld, North Rhine Westphalia, Germany
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
25AQI
29AQI
45AQI
46AQI
24AQI
24AQI
22AQI
27AQI
40AQI
68AQI
70AQI
53AQI
59AQI
73AQI
62AQI
59AQI
65AQI
77AQI
87AQI
91AQI
80AQI
61AQI
40AQI
22AQI
31AQI
24AQI
24AQI
23AQI
28AQI
41AQI
56AQI
52AQI
69AQI
83AQI
74AQI
74AQI
61AQI
69AQI
88AQI
118AQI
112AQI
59AQI
99AQI
132AQI
92AQI
54AQI
59AQI
71AQI
72AQI
73AQI
72AQI
58AQI
45AQI
30AQI
31AQI
51AQI
31AQI
35AQI
47AQI
63AQI
63AQI
71AQI
78AQI
68AQI
64AQI
68AQI
75AQI
95AQI
106AQI
69AQI
44AQI
38AQI
44AQI
57AQI
42AQI
36AQI
43AQI
57AQI
62AQI
49AQI
34AQI
46AQI
96AQI
92AQI
51AQI
78AQI
63AQI
36AQI
32AQI
34AQI
36AQI
51AQI
56AQI
54AQI
27AQI
22AQI
34AQI
53AQI
52AQI
56AQI
67AQI
45AQI
53AQI
51AQI
42AQI
37AQI
28AQI
30AQI
55AQI
49AQI
35AQI
47AQI
49AQI
59AQI
61AQI
34AQI
34AQI
49AQI
48AQI
48AQI
52AQI
60AQI
37AQI
24AQI
24AQI
33AQI
36AQI
32AQI
26AQI
21AQI
22AQI
30AQI
40AQI
42AQI
30AQI
38AQI
41AQI
37AQI
32AQI
35AQI
36AQI
24AQI
24AQI
25AQI
26AQI
26AQI
18AQI
23AQI
25AQI
43AQI
40AQI
40AQI
34AQI
42AQI
23AQI
19AQI
16AQI
19AQI
26AQI
50AQI
49AQI
46AQI
50AQI
56AQI
51AQI
36AQI
36AQI
39AQI
41AQI
34AQI
30AQI
28AQI
34AQI
27AQI
26AQI
26AQI
23AQI
23AQI
20AQI
23AQI
27AQI
33AQI
36AQI
26AQI
22AQI
21AQI
19AQI
21AQI
22AQI
25AQI
24AQI
24AQI
26AQI
34AQI
38AQI
30AQI
27AQI
28AQI
34AQI
34AQI
24AQI
18AQI
18AQI
23AQI
28AQI
28AQI
37AQI
29AQI
28AQI
28AQI
24AQI
24AQI
21AQI
22AQI
23AQI
23AQI
23AQI
27AQI
28AQI
34AQI
35AQI
42AQI
44AQI
55AQI
58AQI
54AQI
49AQI
36AQI
24AQI
26AQI
29AQI
29AQI
22AQI
21AQI
20AQI
22AQI
27AQI
31AQI
33AQI
25AQI
19AQI
19AQI
18AQI
18AQI
17AQI
18AQI
19AQI
21AQI
22AQI
24AQI
25AQI
25AQI
21AQI
19AQI
17AQI
17AQI
16AQI
19AQI
20AQI
19AQI
22AQI
27AQI
28AQI
20AQI
19AQI
18AQI
20AQI
23AQI
33AQI
32AQI
40AQI
34AQI
66AQI
50AQI
43AQI
42AQI
43AQI
52AQI
61AQI
56AQI
54AQI
58AQI
64AQI
75AQI
47AQI
69AQI
60AQI
45AQI
33AQI
34AQI
27AQI
30AQI
22AQI
55AQI
No. of days
202541AQI
Highest AQI recorded in
February69AQI
Lowest AQI recorded in
September22AQI
202434AQI
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
October27AQI
202335AQI
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
March25AQI
202230AQI
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
February25AQI
202123AQI
Highest AQI recorded in
June33AQI
Lowest AQI recorded in
January18AQI
202023AQI
Highest AQI recorded in
June30AQI
Lowest AQI recorded in
December14AQI
Most & Least Polluted Years Over the Last 6 Years
Krefeld's annual 2025 AQI (41) shows an average percentage change of 45.8% (worsened AQI) compared to previous years: 2020 (23), 2021 (23), 2022 (30), 2023 (35), 2024 (34).