Kugayama, Kamirenjaku, Tokyo, Japan 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
Kugayama, Kamirenjaku, Tokyo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (30th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 36 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

2025 Days Vs Air Quality
Kugayama, Kamirenjaku, Tokyo, Japan
93%
254
7%
19
Total number of days with different AQI categories in last 274 days in 2025 (91 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2025, 93% of 274 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
Kugayama, Kamirenjaku, Tokyo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
27AQI
26AQI
26AQI
25AQI
30AQI
26AQI
29AQI
25AQI
26AQI
24AQI
27AQI
29AQI
26AQI
29AQI
25AQI
29AQI
27AQI
30AQI
31AQI
32AQI
33AQI
33AQI
36AQI
34AQI
33AQI
24AQI
31AQI
27AQI
28AQI
28AQI
30AQI
31AQI
27AQI
31AQI
30AQI
28AQI
28AQI
30AQI
28AQI
28AQI
30AQI
28AQI
33AQI
28AQI
30AQI
33AQI
33AQI
30AQI
30AQI
30AQI
31AQI
31AQI
32AQI
33AQI
33AQI
34AQI
37AQI
41AQI
47AQI
45AQI
38AQI
32AQI
28AQI
33AQI
33AQI
33AQI
36AQI
34AQI
33AQI
35AQI
38AQI
27AQI
23AQI
19AQI
17AQI
17AQI
15AQI
17AQI
24AQI
28AQI
30AQI
30AQI
52AQI
61AQI
57AQI
39AQI
31AQI
37AQI
28AQI
24AQI
21AQI
19AQI
24AQI
19AQI
15AQI
15AQI
17AQI
16AQI
19AQI
21AQI
20AQI
18AQI
20AQI
19AQI
17AQI
22AQI
28AQI
31AQI
25AQI
23AQI
21AQI
15AQI
17AQI
19AQI
19AQI
20AQI
18AQI
14AQI
18AQI
17AQI
16AQI
15AQI
20AQI
17AQI
17AQI
14AQI
16AQI
16AQI
14AQI
15AQI
15AQI
17AQI
18AQI
18AQI
21AQI
17AQI
23AQI
21AQI
40AQI
35AQI
28AQI
25AQI
23AQI
18AQI
18AQI
17AQI
17AQI
18AQI
15AQI
14AQI
15AQI
16AQI
16AQI
16AQI
20AQI
22AQI
22AQI
28AQI
23AQI
22AQI
21AQI
21AQI
21AQI
19AQI
19AQI
19AQI
26AQI
22AQI
24AQI
23AQI
20AQI
22AQI
18AQI
16AQI
15AQI
14AQI
19AQI
18AQI
20AQI
37AQI
40AQI
46AQI
47AQI
46AQI
49AQI
63AQI
78AQI
79AQI
84AQI
59AQI
49AQI
54AQI
52AQI
42AQI
40AQI
40AQI
41AQI
36AQI
33AQI
34AQI
37AQI
39AQI
43AQI
44AQI
41AQI
40AQI
36AQI
41AQI
38AQI
34AQI
33AQI
34AQI
42AQI
46AQI
62AQI
52AQI
50AQI
47AQI
47AQI
49AQI
35AQI
37AQI
36AQI
33AQI
36AQI
34AQI
36AQI
39AQI
42AQI
45AQI
47AQI
49AQI
50AQI
49AQI
56AQI
57AQI
55AQI
51AQI
46AQI
52AQI
55AQI
54AQI
43AQI
38AQI
37AQI
40AQI
32AQI
29AQI
31AQI
38AQI
42AQI
37AQI
31AQI
31AQI
27AQI
36AQI
38AQI
39AQI
49AQI
46AQI
35AQI
35AQI
27AQI
29AQI
29AQI
30AQI
33AQI
50AQI
39AQI
32AQI
33AQI
36AQI
29AQI
31AQI
33AQI
20AQI
19AQI
20AQI
46AQI
46AQI
36AQI
No. of days
202531AQI
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
May19AQI
202432AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
December27AQI
202332AQI
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
August19AQI
202230AQI
Highest AQI recorded in
May36AQI
Lowest AQI recorded in
August18AQI
202123AQI
Highest AQI recorded in
June35AQI
Lowest AQI recorded in
February14AQI
202017AQI
Highest AQI recorded in
August26AQI
Lowest AQI recorded in
September12AQI
Most & Least Polluted Years Over the Last 6 Years
Kugayama's annual 2025 AQI (31) shows an average percentage change of 23.3% (worsened AQI) compared to previous years: 2020 (17), 2021 (23), 2022 (30), 2023 (32), 2024 (32).