Koszalin, Zachodniopomorskie, Poland 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
Koszalin, Zachodniopomorskie, Poland
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 69 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Koszalin, Zachodniopomorskie, Poland
6 AM3rd Oct 2025
7 PM
5 AM4th Oct 2025
AQI
AQI
72AQI
55AQI
In the last 24 hours,
Koszalin's AQI reached its highest point of 72 at 11 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Koszalin, Zachodniopomorskie, Poland
21°C16/26°C
20°C17/26°C
17°C16/18°C
17°C14/20°C
18°C14/23°C
20°C15/25°C
20°C17/24°C
18°C15/22°C
16°C13/20°C
16°C12/20°C
15°C13/19°C
15°C11/19°C
14°C13/17°C
14°C12/17°C
15°C11/19°C
18°C16/20°C
20°C16/24°C
19°C15/27°C
14°C12/15°C
12°C9/15°C
11°C8/16°C
11°C7/16°C
11°C7/17°C
12°C7/18°C
12°C8/17°C
11°C7/15°C
10°C6/13°C
11°C8/14°C
9°C6/14°C
--°C/°C
--°C/°C
34AQI
29AQI
35AQI
32AQI
2025 Days Vs Air Quality
Koszalin, Zachodniopomorskie, Poland
75%
206
25%
69
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 276 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
Koszalin, Zachodniopomorskie, Poland
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI
32AQI
29AQI
30AQI
42AQI
46AQI
35AQI
31AQI
41AQI
32AQI
25AQI
28AQI
29AQI
37AQI
36AQI
34AQI
35AQI
38AQI
42AQI
62AQI
68AQI
68AQI
69AQI
62AQI
55AQI
51AQI
44AQI
47AQI
41AQI
38AQI
35AQI
34AQI
35AQI
46AQI
64AQI
71AQI
61AQI
57AQI
58AQI
66AQI
71AQI
71AQI
78AQI
80AQI
64AQI
65AQI
59AQI
57AQI
55AQI
57AQI
66AQI
73AQI
77AQI
79AQI
68AQI
67AQI
69AQI
66AQI
60AQI
57AQI
55AQI
51AQI
49AQI
53AQI
62AQI
71AQI
77AQI
85AQI
95AQI
86AQI
79AQI
69AQI
61AQI
57AQI
55AQI
46AQI
43AQI
48AQI
60AQI
64AQI
61AQI
62AQI
69AQI
76AQI
67AQI
60AQI
60AQI
63AQI
57AQI
53AQI
49AQI
46AQI
42AQI
45AQI
38AQI
26AQI
27AQI
28AQI
33AQI
34AQI
39AQI
44AQI
50AQI
51AQI
53AQI
53AQI
54AQI
53AQI
45AQI
52AQI
50AQI
49AQI
49AQI
47AQI
39AQI
32AQI
30AQI
33AQI
36AQI
34AQI
34AQI
37AQI
33AQI
27AQI
22AQI
24AQI
23AQI
23AQI
25AQI
24AQI
24AQI
24AQI
28AQI
29AQI
25AQI
24AQI
23AQI
21AQI
24AQI
26AQI
31AQI
30AQI
24AQI
24AQI
26AQI
26AQI
27AQI
26AQI
24AQI
25AQI
25AQI
25AQI
28AQI
29AQI
34AQI
30AQI
27AQI
22AQI
22AQI
22AQI
31AQI
33AQI
30AQI
28AQI
28AQI
32AQI
33AQI
33AQI
36AQI
33AQI
28AQI
28AQI
27AQI
29AQI
27AQI
28AQI
27AQI
28AQI
27AQI
26AQI
28AQI
27AQI
27AQI
29AQI
24AQI
23AQI
24AQI
24AQI
23AQI
23AQI
23AQI
22AQI
23AQI
26AQI
30AQI
36AQI
35AQI
33AQI
33AQI
37AQI
42AQI
45AQI
36AQI
32AQI
33AQI
35AQI
36AQI
37AQI
36AQI
30AQI
28AQI
27AQI
26AQI
28AQI
28AQI
26AQI
29AQI
25AQI
29AQI
32AQI
36AQI
37AQI
30AQI
32AQI
42AQI
48AQI
56AQI
51AQI
32AQI
21AQI
23AQI
24AQI
19AQI
19AQI
16AQI
15AQI
16AQI
21AQI
26AQI
42AQI
48AQI
41AQI
35AQI
34AQI
35AQI
23AQI
24AQI
26AQI
23AQI
24AQI
29AQI
42AQI
50AQI
41AQI
25AQI
22AQI
35AQI
26AQI
23AQI
20AQI
21AQI
22AQI
26AQI
29AQI
25AQI
22AQI
22AQI
25AQI
28AQI
27AQI
37AQI
49AQI
42AQI
57AQI
69AQI
42AQI
63AQI
63AQI
42AQI
26AQI
29AQI
30AQI
31AQI
29AQI
63AQI
No. of days
202539AQI
Highest AQI recorded in
February63AQI
Lowest AQI recorded in
May26AQI
202424AQI
Highest AQI recorded in
November45AQI
Lowest AQI recorded in
July12AQI
202317AQI
Highest AQI recorded in
February21AQI
Lowest AQI recorded in
August14AQI
202224AQI
Highest AQI recorded in
December27AQI
Lowest AQI recorded in
October20AQI
202113AQI
Highest AQI recorded in
July18AQI
Lowest AQI recorded in
August10AQI
202016AQI
Highest AQI recorded in
December35AQI
Lowest AQI recorded in
May12AQI
Most & Least Polluted Years Over the Last 6 Years
Koszalin's annual 2025 AQI (39) shows an average percentage change of 123.7% (worsened AQI) compared to previous years: 2020 (16), 2021 (13), 2022 (24), 2023 (17), 2024 (24).