Inuyama, Aichi, 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
Inuyama, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (26th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 16 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 26th Sep - 27th Sep 2025
Inuyama, Aichi, Japan
5 AM26th Sep 2025
6 PM
4 AM27th Sep 2025
30AQI
10AQI
29AQI
22AQI
In the last 24 hours,
Inuyama's AQI reached its highest point of 30 at 2 PM during the Day, while the lowest point, 10, was recorded at 7 AM during the Day between 26th Sep and 27th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Inuyama, Aichi, Japan
28°C23/33°C
29°C25/35°C
30°C25/37°C
30°C25/36°C
30°C26/36°C
30°C26/36°C
28°C24/35°C
25°C23/26°C
24°C23/28°C
26°C21/32°C
27°C23/32°C
29°C24/34°C
28°C25/34°C
27°C23/31°C
25°C23/29°C
24°C22/27°C
25°C23/27°C
26°C23/29°C
28°C24/33°C
27°C23/33°C
28°C24/33°C
26°C23/31°C
24°C21/29°C
22°C21/22°C
24°C19/30°C
21°C17/26°C
22°C20/25°C
22°C19/26°C
24°C21/28°C
25°C21/32°C
--°C/°C
38AQI
35AQI
36AQI
35AQI
2025 Days Vs Air Quality
Inuyama, Aichi, Japan
91%
246
9%
23
Total number of days with different AQI categories in last 270 days in 2025 (95 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 270 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
Inuyama, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
27AQI
27AQI
26AQI
24AQI
21AQI
26AQI
26AQI
26AQI
20AQI
24AQI
22AQI
24AQI
25AQI
26AQI
23AQI
26AQI
24AQI
25AQI
25AQI
31AQI
30AQI
35AQI
33AQI
35AQI
31AQI
23AQI
27AQI
28AQI
27AQI
29AQI
32AQI
24AQI
27AQI
29AQI
29AQI
30AQI
29AQI
29AQI
28AQI
28AQI
30AQI
23AQI
30AQI
27AQI
29AQI
30AQI
30AQI
29AQI
30AQI
28AQI
30AQI
29AQI
31AQI
31AQI
31AQI
33AQI
36AQI
34AQI
36AQI
32AQI
33AQI
23AQI
22AQI
31AQI
31AQI
29AQI
34AQI
33AQI
30AQI
26AQI
32AQI
20AQI
18AQI
15AQI
15AQI
14AQI
15AQI
16AQI
27AQI
28AQI
36AQI
35AQI
50AQI
61AQI
56AQI
36AQI
31AQI
29AQI
27AQI
22AQI
22AQI
17AQI
17AQI
18AQI
16AQI
18AQI
20AQI
18AQI
25AQI
25AQI
24AQI
19AQI
23AQI
17AQI
20AQI
24AQI
31AQI
32AQI
30AQI
22AQI
22AQI
14AQI
14AQI
23AQI
23AQI
23AQI
22AQI
22AQI
26AQI
22AQI
17AQI
18AQI
18AQI
18AQI
15AQI
14AQI
16AQI
16AQI
14AQI
15AQI
18AQI
21AQI
24AQI
26AQI
24AQI
21AQI
26AQI
26AQI
44AQI
38AQI
27AQI
31AQI
28AQI
20AQI
19AQI
21AQI
16AQI
22AQI
17AQI
17AQI
15AQI
22AQI
17AQI
19AQI
20AQI
23AQI
32AQI
38AQI
28AQI
24AQI
22AQI
24AQI
27AQI
22AQI
20AQI
23AQI
26AQI
30AQI
33AQI
36AQI
27AQI
17AQI
17AQI
18AQI
19AQI
19AQI
22AQI
21AQI
28AQI
46AQI
55AQI
75AQI
69AQI
68AQI
74AQI
59AQI
66AQI
70AQI
82AQI
67AQI
50AQI
51AQI
50AQI
40AQI
44AQI
44AQI
35AQI
33AQI
31AQI
33AQI
35AQI
34AQI
37AQI
37AQI
29AQI
25AQI
25AQI
31AQI
37AQI
41AQI
39AQI
45AQI
45AQI
49AQI
64AQI
53AQI
51AQI
43AQI
37AQI
44AQI
34AQI
34AQI
36AQI
35AQI
38AQI
40AQI
41AQI
42AQI
44AQI
48AQI
48AQI
50AQI
49AQI
50AQI
56AQI
57AQI
56AQI
53AQI
50AQI
55AQI
55AQI
54AQI
43AQI
38AQI
39AQI
28AQI
27AQI
28AQI
33AQI
38AQI
39AQI
36AQI
30AQI
31AQI
28AQI
36AQI
33AQI
40AQI
48AQI
37AQI
31AQI
33AQI
26AQI
27AQI
35AQI
36AQI
29AQI
16AQI
27AQI
30AQI
30AQI
22AQI
22AQI
25AQI
47AQI
47AQI
33AQI
No. of days
202531AQI
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
May22AQI
202428AQI
Highest AQI recorded in
September38AQI
Lowest AQI recorded in
January22AQI
202326AQI
Highest AQI recorded in
April34AQI
Lowest AQI recorded in
August20AQI
202229AQI
Highest AQI recorded in
April40AQI
Lowest AQI recorded in
August16AQI
202125AQI
Highest AQI recorded in
June40AQI
Lowest AQI recorded in
February12AQI
202014AQI
Highest AQI recorded in
August21AQI
Lowest AQI recorded in
May12AQI
Most & Least Polluted Years Over the Last 6 Years
Inuyama's annual 2025 AQI (31) shows an average percentage change of 36.4% (worsened AQI) compared to previous years: 2020 (14), 2021 (25), 2022 (29), 2023 (26), 2024 (28).