St Petersburg, Saint Petersburg, Sankt Peterburg, Russia 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
St Petersburg, Saint Petersburg, Sankt Peterburg, Russia
AQI Trends: Highest and Lowest
Same Day Analysis (23rd October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 23rd Oct - 24th Oct 2025
St Petersburg, Saint Petersburg, Sankt Peterburg, Russia
7 AM23rd Oct 2025
6 PM
6 AM24th Oct 2025
66AQI
56AQI
59AQI
51AQI
In the last 24 hours,
St Petersburg's AQI reached its highest point of 66 at 11 AM during the Day, while the lowest point, 51, was recorded at 5 AM during the Night between 23rd Oct and 24th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
St Petersburg, Saint Petersburg, Sankt Peterburg, Russia
7°C4/10°C
9°C4/12°C
10°C7/14°C
11°C8/15°C
8°C4/12°C
6°C2/10°C
5°C1/11°C
6°C2/11°C
6°C3/11°C
6°C2/11°C
7°C3/11°C
8°C6/11°C
11°C9/15°C
10°C8/14°C
9°C6/15°C
9°C6/14°C
9°C7/12°C
8°C6/11°C
7°C6/8°C
5°C4/8°C
6°C4/7°C
6°C4/8°C
8°C5/10°C
4°C2/7°C
2°C0/6°C
2°C0/6°C
4°C1/6°C
4°C1/7°C
3°C0/7°C
4°C2/6°C
--°C/°C
61AQI
53AQI
61AQI
53AQI
2025 Days Vs Air Quality
St Petersburg, Saint Petersburg, Sankt Peterburg, Russia
88%
260
12%
36
Total number of days with different AQI categories in last 297 days in 2025 (68 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 297 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
St Petersburg, Saint Petersburg, Sankt Peterburg, Russia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
35AQI
36AQI
34AQI
47AQI
27AQI
39AQI
27AQI
37AQI
32AQI
38AQI
30AQI
40AQI
44AQI
24AQI
22AQI
27AQI
21AQI
24AQI
24AQI
22AQI
23AQI
27AQI
34AQI
30AQI
28AQI
29AQI
26AQI
28AQI
42AQI
33AQI
31AQI
27AQI
23AQI
25AQI
34AQI
47AQI
41AQI
42AQI
40AQI
52AQI
49AQI
34AQI
28AQI
25AQI
27AQI
58AQI
47AQI
58AQI
50AQI
31AQI
30AQI
24AQI
32AQI
48AQI
55AQI
63AQI
73AQI
58AQI
59AQI
34AQI
36AQI
35AQI
35AQI
37AQI
39AQI
26AQI
40AQI
25AQI
38AQI
26AQI
34AQI
39AQI
38AQI
58AQI
60AQI
48AQI
57AQI
48AQI
29AQI
24AQI
45AQI
33AQI
42AQI
46AQI
47AQI
49AQI
37AQI
51AQI
50AQI
50AQI
53AQI
45AQI
42AQI
43AQI
24AQI
21AQI
26AQI
21AQI
30AQI
20AQI
21AQI
19AQI
16AQI
24AQI
32AQI
29AQI
35AQI
31AQI
39AQI
33AQI
30AQI
30AQI
28AQI
16AQI
20AQI
22AQI
14AQI
19AQI
17AQI
15AQI
18AQI
19AQI
13AQI
14AQI
13AQI
14AQI
14AQI
14AQI
14AQI
18AQI
14AQI
19AQI
16AQI
19AQI
15AQI
15AQI
15AQI
15AQI
14AQI
14AQI
12AQI
13AQI
16AQI
17AQI
19AQI
18AQI
18AQI
16AQI
28AQI
23AQI
23AQI
13AQI
13AQI
15AQI
14AQI
18AQI
22AQI
17AQI
15AQI
20AQI
17AQI
20AQI
23AQI
21AQI
19AQI
19AQI
20AQI
23AQI
20AQI
19AQI
18AQI
16AQI
14AQI
16AQI
16AQI
15AQI
16AQI
16AQI
18AQI
17AQI
16AQI
15AQI
17AQI
16AQI
16AQI
16AQI
17AQI
18AQI
19AQI
17AQI
18AQI
20AQI
22AQI
20AQI
26AQI
24AQI
23AQI
20AQI
20AQI
21AQI
20AQI
21AQI
23AQI
23AQI
25AQI
29AQI
28AQI
31AQI
28AQI
30AQI
35AQI
48AQI
43AQI
37AQI
33AQI
34AQI
32AQI
26AQI
20AQI
19AQI
19AQI
24AQI
22AQI
20AQI
19AQI
19AQI
24AQI
20AQI
17AQI
17AQI
20AQI
19AQI
16AQI
18AQI
18AQI
22AQI
18AQI
18AQI
18AQI
17AQI
22AQI
27AQI
24AQI
28AQI
37AQI
33AQI
30AQI
40AQI
37AQI
41AQI
40AQI
41AQI
44AQI
43AQI
35AQI
34AQI
32AQI
30AQI
25AQI
24AQI
19AQI
17AQI
18AQI
21AQI
18AQI
15AQI
16AQI
19AQI
25AQI
10AQI
21AQI
66AQI
72AQI
90AQI
73AQI
78AQI
79AQI
61AQI
76AQI
90AQI
65AQI
66AQI
77AQI
42AQI
38AQI
52AQI
52AQI
57AQI
51AQI
64AQI
71AQI
68AQI
58AQI
61AQI
55AQI
57AQI
31AQI
42AQI
41AQI
27AQI
16AQI
18AQI
23AQI
23AQI
31AQI
64AQI
No. of days
202531AQI
Highest AQI recorded in
October64AQI
Lowest AQI recorded in
May16AQI
202432AQI
Highest AQI recorded in
September54AQI
Lowest AQI recorded in
April4AQI
202327AQI
Highest AQI recorded in
December28AQI
Lowest AQI recorded in
November19AQI
202036AQI
Highest AQI recorded in
March43AQI
Lowest AQI recorded in
May33AQI
Most & Least Polluted Years Over the Last 4 Years
St Petersburg's annual 2025 AQI (31) shows an average percentage change of -1.5% (improved AQI) compared to previous years: 2020 (36), 2023 (27), 2024 (32).