Meirakucho, Kiyosu, Aichi, Japan 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
Meirakucho, Kiyosu, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 72 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Meirakucho, Kiyosu, Aichi, Japan
5 AM4th Oct 2025
5 PM
4 AM5th Oct 2025
70AQI
54AQI
57AQI
52AQI
In the last 24 hours,
Meirakucho's AQI reached its highest point of 70 at 5 AM during the Day, while the lowest point, 52, was recorded at 9 PM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Meirakucho, Kiyosu, Aichi, Japan
25°C23/28°C
27°C23/32°C
28°C25/33°C
30°C26/35°C
30°C27/34°C
28°C25/32°C
26°C23/30°C
25°C24/28°C
26°C24/29°C
27°C25/30°C
29°C25/34°C
29°C25/33°C
29°C26/34°C
28°C25/32°C
25°C23/29°C
23°C23/24°C
25°C22/30°C
23°C19/27°C
23°C21/26°C
24°C21/27°C
25°C23/28°C
27°C23/32°C
25°C21/30°C
25°C22/28°C
24°C22/28°C
23°C20/27°C
23°C20/26°C
23°C18/27°C
23°C21/25°C
21°C20/22°C
--°C/°C
37AQI
37AQI
36AQI
32AQI
2025 Days Vs Air Quality
Meirakucho, Kiyosu, Aichi, Japan
90%
250
10%
27
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 278 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
Meirakucho, Kiyosu, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
30AQI
29AQI
27AQI
26AQI
25AQI
27AQI
26AQI
27AQI
23AQI
24AQI
23AQI
26AQI
29AQI
29AQI
26AQI
27AQI
24AQI
28AQI
27AQI
32AQI
30AQI
37AQI
35AQI
36AQI
32AQI
25AQI
29AQI
29AQI
29AQI
33AQI
37AQI
26AQI
29AQI
29AQI
30AQI
29AQI
28AQI
29AQI
28AQI
30AQI
29AQI
23AQI
30AQI
27AQI
29AQI
31AQI
32AQI
30AQI
30AQI
28AQI
30AQI
30AQI
31AQI
31AQI
30AQI
35AQI
33AQI
35AQI
37AQI
37AQI
34AQI
25AQI
23AQI
31AQI
31AQI
30AQI
34AQI
33AQI
28AQI
25AQI
33AQI
21AQI
19AQI
16AQI
16AQI
16AQI
14AQI
19AQI
30AQI
30AQI
35AQI
35AQI
47AQI
63AQI
58AQI
37AQI
32AQI
29AQI
29AQI
22AQI
23AQI
17AQI
17AQI
18AQI
16AQI
18AQI
20AQI
18AQI
24AQI
24AQI
24AQI
19AQI
24AQI
18AQI
20AQI
25AQI
30AQI
31AQI
28AQI
22AQI
21AQI
14AQI
13AQI
23AQI
22AQI
23AQI
22AQI
20AQI
25AQI
21AQI
20AQI
20AQI
20AQI
19AQI
16AQI
15AQI
16AQI
16AQI
15AQI
15AQI
21AQI
26AQI
29AQI
26AQI
25AQI
19AQI
26AQI
28AQI
38AQI
34AQI
26AQI
27AQI
26AQI
18AQI
18AQI
18AQI
17AQI
21AQI
17AQI
18AQI
16AQI
21AQI
17AQI
20AQI
20AQI
22AQI
27AQI
32AQI
24AQI
20AQI
20AQI
23AQI
24AQI
20AQI
19AQI
22AQI
25AQI
25AQI
28AQI
31AQI
26AQI
20AQI
18AQI
17AQI
17AQI
17AQI
22AQI
20AQI
25AQI
42AQI
54AQI
78AQI
81AQI
69AQI
76AQI
63AQI
66AQI
76AQI
85AQI
63AQI
53AQI
52AQI
52AQI
42AQI
48AQI
45AQI
38AQI
36AQI
35AQI
33AQI
36AQI
33AQI
33AQI
33AQI
28AQI
25AQI
25AQI
28AQI
34AQI
36AQI
38AQI
42AQI
44AQI
46AQI
61AQI
51AQI
53AQI
47AQI
39AQI
44AQI
41AQI
37AQI
35AQI
35AQI
40AQI
41AQI
42AQI
41AQI
44AQI
49AQI
48AQI
49AQI
50AQI
50AQI
58AQI
57AQI
56AQI
52AQI
50AQI
55AQI
55AQI
53AQI
45AQI
37AQI
37AQI
28AQI
26AQI
27AQI
33AQI
39AQI
40AQI
38AQI
29AQI
31AQI
28AQI
36AQI
35AQI
41AQI
49AQI
39AQI
32AQI
35AQI
28AQI
29AQI
33AQI
32AQI
34AQI
29AQI
30AQI
32AQI
27AQI
23AQI
36AQI
40AQI
60AQI
72AQI
28AQI
30AQI
31AQI
21AQI
22AQI
23AQI
48AQI
47AQI
33AQI
52AQI
No. of days
202532AQI
Highest AQI recorded in
October52AQI
Lowest AQI recorded in
April21AQI
202432AQI
Highest AQI recorded in
September39AQI
Lowest AQI recorded in
January18AQI
202322AQI
Highest AQI recorded in
December23AQI
Lowest AQI recorded in
November16AQI
202019AQI
Highest AQI recorded in
September19AQI
Lowest AQI recorded in
September19AQI
Most & Least Polluted Years Over the Last 4 Years
Meirakucho's annual 2025 AQI (32) shows an average percentage change of 37.4% (worsened AQI) compared to previous years: 2020 (19), 2023 (22), 2024 (32).