Kaluga, Kaluzhskaya Oblast, 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
Kaluga, Kaluzhskaya Oblast, Russia
AQI Trends: Highest and Lowest
Same Day Analysis (31st October ):
On this day, AQI across the 3 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: 1st Oct - 2nd Oct 2025
Kaluga, Kaluzhskaya Oblast, Russia
6 AM1st Oct 2025
6 PM
5 AM2nd Oct 2025
57AQI
20AQI
51AQI
34AQI
In the last 24 hours,
Kaluga's AQI reached its highest point of 57 at 6 AM during the Day, while the lowest point, 20, was recorded at 12 PM during the Day between 1st Oct and 2nd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kaluga, Kaluzhskaya Oblast, Russia
15°C11/19°C
15°C10/20°C
14°C9/20°C
15°C9/21°C
16°C10/21°C
17°C11/23°C
17°C11/21°C
17°C13/23°C
15°C10/20°C
14°C8/20°C
14°C9/19°C
12°C7/18°C
13°C8/19°C
15°C9/22°C
16°C10/22°C
15°C11/21°C
14°C10/19°C
11°C8/16°C
14°C11/18°C
17°C10/24°C
19°C13/26°C
16°C11/22°C
9°C4/12°C
6°C2/10°C
9°C4/13°C
8°C5/11°C
7°C5/9°C
6°C4/9°C
5°C1/10°C
5°C0/11°C
--°C/°C
40AQI
32AQI
40AQI
36AQI
2025 Days Vs Air Quality
Kaluga, Kaluzhskaya Oblast, Russia
70%
191
30%
82
Total number of days with different AQI categories in last 275 days in 2025 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 275 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
Kaluga, Kaluzhskaya Oblast, Russia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
51AQI
42AQI
39AQI
47AQI
56AQI
58AQI
59AQI
57AQI
54AQI
53AQI
55AQI
58AQI
65AQI
52AQI
43AQI
65AQI
43AQI
37AQI
37AQI
61AQI
57AQI
63AQI
68AQI
62AQI
62AQI
65AQI
57AQI
57AQI
49AQI
49AQI
53AQI
34AQI
26AQI
27AQI
46AQI
63AQI
59AQI
58AQI
60AQI
66AQI
73AQI
62AQI
63AQI
84AQI
79AQI
34AQI
60AQI
43AQI
46AQI
44AQI
64AQI
63AQI
45AQI
59AQI
62AQI
80AQI
84AQI
66AQI
75AQI
72AQI
63AQI
55AQI
56AQI
41AQI
48AQI
65AQI
84AQI
85AQI
84AQI
95AQI
88AQI
77AQI
60AQI
63AQI
70AQI
49AQI
57AQI
50AQI
57AQI
67AQI
57AQI
54AQI
55AQI
54AQI
69AQI
49AQI
57AQI
64AQI
56AQI
61AQI
58AQI
50AQI
46AQI
48AQI
35AQI
26AQI
25AQI
29AQI
24AQI
25AQI
33AQI
33AQI
37AQI
37AQI
51AQI
41AQI
52AQI
55AQI
53AQI
52AQI
52AQI
56AQI
56AQI
47AQI
39AQI
24AQI
33AQI
34AQI
40AQI
31AQI
25AQI
15AQI
17AQI
17AQI
15AQI
16AQI
15AQI
15AQI
16AQI
16AQI
16AQI
15AQI
16AQI
16AQI
15AQI
15AQI
15AQI
15AQI
14AQI
12AQI
14AQI
21AQI
14AQI
15AQI
16AQI
14AQI
14AQI
15AQI
15AQI
15AQI
18AQI
15AQI
15AQI
16AQI
17AQI
16AQI
17AQI
18AQI
21AQI
23AQI
21AQI
17AQI
20AQI
21AQI
19AQI
18AQI
18AQI
19AQI
19AQI
20AQI
19AQI
16AQI
13AQI
13AQI
15AQI
16AQI
15AQI
14AQI
16AQI
16AQI
15AQI
13AQI
14AQI
15AQI
17AQI
16AQI
16AQI
18AQI
19AQI
22AQI
21AQI
22AQI
23AQI
25AQI
25AQI
25AQI
24AQI
26AQI
26AQI
26AQI
27AQI
26AQI
27AQI
28AQI
29AQI
28AQI
30AQI
30AQI
30AQI
33AQI
34AQI
43AQI
42AQI
45AQI
45AQI
48AQI
42AQI
37AQI
31AQI
24AQI
23AQI
23AQI
29AQI
32AQI
39AQI
40AQI
37AQI
43AQI
37AQI
27AQI
36AQI
37AQI
32AQI
35AQI
36AQI
36AQI
35AQI
35AQI
36AQI
36AQI
40AQI
40AQI
43AQI
49AQI
50AQI
51AQI
34AQI
50AQI
54AQI
54AQI
51AQI
54AQI
52AQI
50AQI
47AQI
41AQI
43AQI
44AQI
47AQI
44AQI
40AQI
35AQI
27AQI
25AQI
25AQI
22AQI
21AQI
17AQI
16AQI
13AQI
8AQI
12AQI
23AQI
54AQI
58AQI
63AQI
41AQI
16AQI
17AQI
24AQI
36AQI
37AQI
No. of days
202538AQI
Highest AQI recorded in
March63AQI
Lowest AQI recorded in
May16AQI
202417AQI
Highest AQI recorded in
December55AQI
Lowest AQI recorded in
February2AQI
20235AQI
Highest AQI recorded in
April9AQI
Lowest AQI recorded in
January2AQI
20220AQI
Highest AQI recorded in
November1AQI
Lowest AQI recorded in
October0AQI
Most & Least Polluted Years Over the Last 4 Years
Kaluga's annual 2025 AQI (38) shows an average percentage change of 2995.1% (worsened AQI) compared to previous years: 2022 (0), 2023 (5), 2024 (17).