Azumacho, Toyohashi, 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
Azumacho, Toyohashi, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (26th September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 34 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 27th Sep - 28th Sep 2025
Azumacho, Toyohashi, Aichi, Japan
5 AM27th Sep 2025
6 PM
4 AM28th Sep 2025
40AQI
21AQI
36AQI
25AQI
In the last 24 hours,
Azumacho's AQI reached its highest point of 40 at 12 PM during the Day, while the lowest point, 21, was recorded at 8 AM during the Day between 27th Sep and 28th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Azumacho, Toyohashi, Aichi, Japan
29°C26/32°C
31°C27/35°C
30°C28/34°C
29°C27/32°C
29°C27/31°C
29°C26/33°C
26°C24/26°C
26°C24/27°C
27°C23/30°C
28°C25/31°C
29°C26/33°C
29°C27/32°C
28°C26/31°C
27°C26/30°C
26°C24/29°C
26°C24/29°C
28°C25/31°C
29°C26/33°C
28°C26/31°C
29°C26/33°C
29°C26/32°C
25°C24/26°C
23°C21/24°C
26°C23/30°C
24°C22/26°C
23°C21/26°C
23°C21/26°C
25°C23/28°C
27°C23/31°C
25°C23/28°C
--°C/°C
38AQI
32AQI
38AQI
36AQI
2025 Days Vs Air Quality
Azumacho, Toyohashi, Aichi, Japan
90%
241
10%
28
Total number of days with different AQI categories in last 271 days in 2025 (94 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 271 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
Azumacho, Toyohashi, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
28AQI
28AQI
26AQI
26AQI
28AQI
28AQI
24AQI
26AQI
25AQI
25AQI
25AQI
26AQI
27AQI
29AQI
23AQI
26AQI
25AQI
28AQI
29AQI
29AQI
29AQI
36AQI
36AQI
33AQI
29AQI
27AQI
30AQI
27AQI
30AQI
31AQI
36AQI
39AQI
34AQI
31AQI
31AQI
30AQI
31AQI
30AQI
30AQI
29AQI
30AQI
28AQI
30AQI
29AQI
31AQI
31AQI
35AQI
31AQI
32AQI
31AQI
31AQI
32AQI
32AQI
33AQI
35AQI
37AQI
40AQI
45AQI
44AQI
42AQI
34AQI
33AQI
23AQI
31AQI
31AQI
36AQI
35AQI
36AQI
34AQI
31AQI
40AQI
25AQI
30AQI
18AQI
17AQI
21AQI
15AQI
22AQI
33AQI
39AQI
49AQI
50AQI
67AQI
79AQI
70AQI
50AQI
36AQI
35AQI
33AQI
29AQI
25AQI
21AQI
20AQI
27AQI
22AQI
24AQI
31AQI
22AQI
36AQI
29AQI
27AQI
19AQI
24AQI
20AQI
23AQI
41AQI
48AQI
56AQI
52AQI
35AQI
46AQI
24AQI
31AQI
31AQI
42AQI
35AQI
42AQI
31AQI
41AQI
39AQI
26AQI
29AQI
24AQI
30AQI
22AQI
21AQI
24AQI
30AQI
19AQI
19AQI
23AQI
32AQI
38AQI
42AQI
44AQI
27AQI
34AQI
34AQI
50AQI
54AQI
49AQI
43AQI
36AQI
23AQI
22AQI
27AQI
26AQI
34AQI
26AQI
23AQI
17AQI
30AQI
24AQI
27AQI
28AQI
41AQI
46AQI
55AQI
47AQI
33AQI
26AQI
30AQI
42AQI
30AQI
20AQI
35AQI
36AQI
35AQI
40AQI
42AQI
43AQI
51AQI
30AQI
29AQI
22AQI
21AQI
28AQI
27AQI
33AQI
41AQI
45AQI
46AQI
48AQI
52AQI
65AQI
57AQI
71AQI
79AQI
73AQI
62AQI
50AQI
52AQI
51AQI
41AQI
40AQI
45AQI
40AQI
43AQI
42AQI
42AQI
41AQI
45AQI
44AQI
40AQI
43AQI
41AQI
39AQI
38AQI
41AQI
37AQI
36AQI
43AQI
44AQI
47AQI
66AQI
51AQI
53AQI
44AQI
39AQI
47AQI
46AQI
37AQI
37AQI
37AQI
41AQI
40AQI
41AQI
42AQI
45AQI
46AQI
46AQI
48AQI
45AQI
49AQI
57AQI
58AQI
54AQI
53AQI
51AQI
56AQI
56AQI
54AQI
42AQI
35AQI
40AQI
32AQI
29AQI
28AQI
30AQI
36AQI
40AQI
35AQI
30AQI
31AQI
27AQI
38AQI
37AQI
45AQI
50AQI
37AQI
33AQI
32AQI
26AQI
30AQI
32AQI
33AQI
43AQI
34AQI
28AQI
33AQI
37AQI
32AQI
31AQI
34AQI
48AQI
48AQI
35AQI
No. of days
202536AQI
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
January28AQI
202432AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
January10AQI
202314AQI
Highest AQI recorded in
December14AQI
Lowest AQI recorded in
November13AQI
202231AQI
Highest AQI recorded in
March33AQI
Lowest AQI recorded in
January28AQI
202124AQI
Highest AQI recorded in
June34AQI
Lowest AQI recorded in
January10AQI
202015AQI
Highest AQI recorded in
August20AQI
Lowest AQI recorded in
October12AQI
Most & Least Polluted Years Over the Last 6 Years
Azumacho's annual 2025 AQI (36) shows an average percentage change of 74.7% (worsened AQI) compared to previous years: 2020 (15), 2021 (24), 2022 (31), 2023 (14), 2024 (32).