Poznan, Greater Poland Voivodeship, Poland 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
Poznan, Greater Poland Voivodeship, Poland
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 23 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Poznan, Greater Poland Voivodeship, Poland
6 AM17th Sep 2025
7 PM
5 AM18th Sep 2025
25AQI
19AQI
26AQI
21AQI
In the last 24 hours,
Poznan's AQI reached its highest point of 26 at 3 AM during the Night, while the lowest point, 19, was recorded at 7 AM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Poznan, Greater Poland Voivodeship, Poland
20°C13/26°C
19°C12/24°C
17°C10/24°C
17°C12/20°C
13°C9/18°C
15°C8/21°C
15°C11/18°C
17°C11/23°C
20°C13/27°C
24°C17/32°C
20°C17/24°C
20°C17/24°C
21°C16/25°C
21°C16/27°C
20°C16/26°C
20°C15/25°C
22°C16/28°C
21°C17/27°C
15°C13/16°C
17°C14/21°C
18°C14/24°C
20°C14/26°C
21°C16/26°C
19°C15/23°C
17°C13/23°C
16°C12/21°C
15°C12/18°C
16°C11/22°C
16°C14/19°C
14°C12/18°C
--°C/°C
39AQI
31AQI
36AQI
32AQI
2025 Days Vs Air Quality
Poznan, Greater Poland Voivodeship, Poland
96%
107
4%
5
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 261 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Poznan, Greater Poland Voivodeship, Poland
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
30AQI
34AQI
29AQI
40AQI
41AQI
40AQI
34AQI
28AQI
23AQI
25AQI
23AQI
34AQI
40AQI
36AQI
28AQI
30AQI
32AQI
39AQI
34AQI
40AQI
38AQI
30AQI
27AQI
24AQI
33AQI
27AQI
26AQI
27AQI
30AQI
29AQI
27AQI
28AQI
28AQI
28AQI
31AQI
27AQI
28AQI
30AQI
30AQI
32AQI
27AQI
25AQI
23AQI
22AQI
26AQI
32AQI
37AQI
35AQI
31AQI
35AQI
34AQI
41AQI
44AQI
31AQI
26AQI
28AQI
32AQI
41AQI
38AQI
39AQI
31AQI
25AQI
29AQI
33AQI
36AQI
37AQI
33AQI
33AQI
28AQI
27AQI
29AQI
37AQI
43AQI
35AQI
40AQI
46AQI
53AQI
59AQI
57AQI
41AQI
27AQI
29AQI
35AQI
25AQI
27AQI
22AQI
17AQI
19AQI
24AQI
36AQI
49AQI
52AQI
47AQI
39AQI
40AQI
49AQI
37AQI
33AQI
38AQI
30AQI
29AQI
40AQI
50AQI
55AQI
44AQI
31AQI
31AQI
44AQI
33AQI
26AQI
23AQI
29AQI
31AQI
31AQI
36AQI
37AQI
No. of days
202533AQI
Highest AQI recorded in
September37AQI
Lowest AQI recorded in
May29AQI
Most & Least Polluted Years Over the Last 1 Years
Poznan's annual 2025 AQI (33) shows an average percentage change of NaN% (improved AQI) compared to previous years: .