Matsuejomachi, Honmachi, Kumamoto, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Matsuejomachi, Honmachi, Kumamoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 41 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Matsuejomachi, Honmachi, Kumamoto, Japan
5 AM4th Aug 2025
7 PM
4 AM5th Aug 2025
46AQI
29AQI
44AQI
39AQI
In the last 24 hours,
Matsuejomachi's AQI reached its highest point of 46 at 5 AM during the Day, while the lowest point, 29, was recorded at 12 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Matsuejomachi, Honmachi, Kumamoto, Japan
27°C25/31°C
27°C24/32°C
28°C25/31°C
28°C24/32°C
27°C25/30°C
28°C26/30°C
28°C26/32°C
28°C25/31°C
25°C23/26°C
25°C23/29°C
26°C22/30°C
27°C24/32°C
25°C24/26°C
27°C23/32°C
28°C24/33°C
28°C25/32°C
28°C25/33°C
28°C25/33°C
29°C25/33°C
29°C25/34°C
28°C26/33°C
29°C26/33°C
29°C25/34°C
29°C25/33°C
28°C24/34°C
29°C24/34°C
29°C26/33°C
29°C25/34°C
28°C25/32°C
28°C26/31°C
--°C/°C
44AQI
35AQI
45AQI
39AQI
2025 Days Vs Air Quality
Matsuejomachi, Honmachi, Kumamoto, Japan
48%
103
52%
112
0.4%
1
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 48%
Health Risk Level:
Significant
In 2025, 48% of 217 days were within WHO’s safe air quality limits, and 52% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Matsuejomachi, Honmachi, Kumamoto, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
44AQI
61AQI
51AQI
39AQI
38AQI
44AQI
32AQI
37AQI
30AQI
31AQI
28AQI
35AQI
43AQI
45AQI
48AQI
41AQI
48AQI
50AQI
57AQI
49AQI
72AQI
71AQI
72AQI
69AQI
54AQI
45AQI
38AQI
36AQI
32AQI
36AQI
43AQI
41AQI
34AQI
46AQI
32AQI
38AQI
32AQI
34AQI
31AQI
32AQI
31AQI
40AQI
39AQI
34AQI
40AQI
32AQI
36AQI
46AQI
35AQI
39AQI
36AQI
38AQI
43AQI
38AQI
42AQI
37AQI
38AQI
63AQI
49AQI
52AQI
46AQI
41AQI
32AQI
32AQI
32AQI
35AQI
43AQI
45AQI
51AQI
40AQI
49AQI
55AQI
50AQI
37AQI
33AQI
50AQI
43AQI
37AQI
50AQI
52AQI
61AQI
58AQI
44AQI
62AQI
68AQI
67AQI
69AQI
67AQI
65AQI
65AQI
64AQI
63AQI
63AQI
62AQI
64AQI
63AQI
61AQI
63AQI
67AQI
64AQI
66AQI
68AQI
65AQI
66AQI
61AQI
64AQI
63AQI
65AQI
66AQI
64AQI
64AQI
62AQI
61AQI
63AQI
66AQI
66AQI
66AQI
64AQI
65AQI
66AQI
64AQI
58AQI
60AQI
59AQI
59AQI
58AQI
57AQI
63AQI
58AQI
60AQI
61AQI
64AQI
65AQI
66AQI
65AQI
67AQI
59AQI
62AQI
64AQI
60AQI
58AQI
58AQI
62AQI
59AQI
55AQI
57AQI
57AQI
60AQI
60AQI
57AQI
61AQI
62AQI
63AQI
59AQI
63AQI
64AQI
65AQI
68AQI
70AQI
61AQI
60AQI
59AQI
60AQI
63AQI
59AQI
59AQI
59AQI
55AQI
44AQI
41AQI
39AQI
35AQI
17AQI
20AQI
30AQI
31AQI
29AQI
33AQI
33AQI
41AQI
53AQI
72AQI
101AQI
93AQI
97AQI
73AQI
59AQI
55AQI
62AQI
67AQI
57AQI
43AQI
41AQI
40AQI
37AQI
45AQI
58AQI
52AQI
35AQI
36AQI
34AQI
32AQI
42AQI
42AQI
31AQI
26AQI
23AQI
22AQI
24AQI
25AQI
32AQI
29AQI
43AQI
46AQI
46AQI
41AQI
46AQI
38AQI
49AQI
64AQI
60AQI
50AQI
48AQI
44AQI
No. of days
202551AQI
Highest AQI recorded in
April64AQI
Lowest AQI recorded in
February38AQI
202450AQI
Highest AQI recorded in
January108AQI
Lowest AQI recorded in
July34AQI
202347AQI
Highest AQI recorded in
November51AQI
Lowest AQI recorded in
December46AQI
202147AQI
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
January44AQI
202046AQI
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
July33AQI
Most & Least Polluted Years Over the Last 5 Years
Matsuejomachi's annual 2025 AQI (51) shows an average percentage change of 7.4% (worsened AQI) compared to previous years: 2020 (46), 2021 (47), 2023 (47), 2024 (50).