Cologne, 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!
June Air Quality Analysis
Cologne, North Rhine Westphalia, Germany
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 25 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Cologne, North Rhine Westphalia, Germany
5 AM1st Jun 2026
9 PM
4 AM2nd Jun 2026
40AQI
6AQI
49AQI
10AQI
In the last 24 hours,
Cologne's AQI reached its highest point of 49 at 1 AM during the Night, while the lowest point, 6, was recorded at 4 PM during the Day between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Cologne, North Rhine Westphalia, Germany
15°C11/21°C
14°C12/16°C
10°C8/11°C
11°C7/16°C
13°C7/19°C
15°C8/21°C
16°C10/21°C
8°C6/13°C
8°C3/13°C
10°C7/13°C
8°C6/11°C
8°C4/14°C
9°C4/15°C
9°C4/14°C
12°C9/17°C
12°C7/17°C
14°C11/18°C
15°C10/20°C
19°C11/27°C
22°C14/29°C
22°C17/28°C
22°C14/29°C
24°C16/32°C
22°C17/27°C
20°C13/27°C
23°C14/32°C
22°C17/28°C
19°C16/23°C
18°C13/24°C
17°C14/21°C
33AQI
26AQI
33AQI
29AQI
2026 Days Vs Air Quality
Cologne, North Rhine Westphalia, Germany
71%
107
25%
38
3%
5
Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2026, 71% of 153 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
Cologne, North Rhine Westphalia, Germany
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
37AQI (US)
20AQI (US)
27AQI (US)
34AQI (US)
38AQI (US)
52AQI (US)
31AQI (US)
40AQI (US)
17AQI (US)
61AQI (US)
43AQI (US)
39AQI (US)
18AQI (US)
28AQI (US)
29AQI (US)
19AQI (US)
42AQI (US)
67AQI (US)
82AQI (US)
85AQI (US)
77AQI (US)
68AQI (US)
122AQI (US)
133AQI (US)
132AQI (US)
129AQI (US)
80AQI (US)
76AQI (US)
99AQI (US)
76AQI (US)
83AQI (US)
93AQI (US)
59AQI (US)
86AQI (US)
50AQI (US)
84AQI (US)
77AQI (US)
50AQI (US)
50AQI (US)
50AQI (US)
60AQI (US)
20AQI (US)
21AQI (US)
43AQI (US)
82AQI (US)
69AQI (US)
15AQI (US)
19AQI (US)
29AQI (US)
33AQI (US)
74AQI (US)
16AQI (US)
12AQI (US)
22AQI (US)
28AQI (US)
36AQI (US)
46AQI (US)
47AQI (US)
15AQI (US)
26AQI (US)
43AQI (US)
47AQI (US)
78AQI (US)
69AQI (US)
72AQI (US)
102AQI (US)
91AQI (US)
86AQI (US)
62AQI (US)
17AQI (US)
20AQI (US)
26AQI (US)
30AQI (US)
42AQI (US)
13AQI (US)
22AQI (US)
29AQI (US)
79AQI (US)
98AQI (US)
77AQI (US)
76AQI (US)
81AQI (US)
92AQI (US)
34AQI (US)
11AQI (US)
20AQI (US)
22AQI (US)
24AQI (US)
9AQI (US)
20AQI (US)
22AQI (US)
31AQI (US)
19AQI (US)
14AQI (US)
28AQI (US)
24AQI (US)
21AQI (US)
11AQI (US)
18AQI (US)
21AQI (US)
32AQI (US)
30AQI (US)
33AQI (US)
79AQI (US)
40AQI (US)
30AQI (US)
60AQI (US)
31AQI (US)
20AQI (US)
54AQI (US)
22AQI (US)
43AQI (US)
54AQI (US)
27AQI (US)
17AQI (US)
21AQI (US)
17AQI (US)
15AQI (US)
17AQI (US)
22AQI (US)
23AQI (US)
18AQI (US)
46AQI (US)
40AQI (US)
47AQI (US)
22AQI (US)
63AQI (US)
24AQI (US)
12AQI (US)
22AQI (US)
20AQI (US)
28AQI (US)
36AQI (US)
36AQI (US)
34AQI (US)
31AQI (US)
31AQI (US)
31AQI (US)
33AQI (US)
36AQI (US)
50AQI (US)
40AQI (US)
28AQI (US)
22AQI (US)
13AQI (US)
21AQI (US)
39AQI (US)
28AQI (US)
11AQI (US)
25AQI (US)
61AQI (US)
46AQI (US)
49AQI (US)
30AQI (US)
30AQI (US)
18AQI (US)
No. of days
202643AQI (US)
Highest AQI (US) recorded in
January61AQI (US)
Lowest AQI (US) recorded in
June18AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
February63AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
September39AQI (US)
Lowest AQI (US) recorded in
February23AQI (US)
202331AQI (US)
Highest AQI (US) recorded in
February50AQI (US)
Lowest AQI (US) recorded in
November23AQI (US)
202234AQI (US)
Highest AQI (US) recorded in
March49AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
202127AQI (US)
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
January13AQI (US)
202020AQI (US)
Highest AQI (US) recorded in
April27AQI (US)
Lowest AQI (US) recorded in
December11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Cologne's annual 2026 AQI (US) (43) shows an average percentage change of 45.7% (worsened AQI (US)) compared to previous years: 2020 (20), 2021 (27), 2022 (34), 2023 (31), 2024 (33), 2025 (41).