Shinchimachi, Arao, 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
Shinchimachi, Arao, Kumamoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (11th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 36 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Shinchimachi, Arao, Kumamoto, Japan
5 AM11th Aug 2025
7 PM
4 AM12th Aug 2025
AQI
AQI
42AQI
12AQI
In the last 24 hours,
Shinchimachi's AQI reached its highest point of 42 at 5 AM during the Night, while the lowest point, 12, was recorded at 10 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Shinchimachi, Arao, Kumamoto, Japan
28°C26/32°C
26°C24/28°C
26°C23/30°C
27°C23/31°C
28°C25/32°C
25°C24/25°C
27°C24/31°C
28°C24/32°C
29°C26/33°C
30°C26/34°C
30°C26/35°C
30°C26/36°C
30°C26/36°C
30°C27/35°C
30°C27/35°C
31°C26/36°C
31°C26/36°C
31°C26/36°C
31°C25/36°C
31°C27/35°C
31°C27/37°C
30°C27/34°C
29°C27/33°C
30°C27/33°C
30°C27/34°C
27°C26/30°C
26°C25/28°C
25°C25/26°C
26°C26/27°C
--°C/°C
--°C/°C
41AQI
31AQI
41AQI
37AQI
2025 Days Vs Air Quality
Shinchimachi, Arao, Kumamoto, Japan
70%
155
30%
68
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 223 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Shinchimachi, Arao, Kumamoto, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
37AQI
47AQI
38AQI
38AQI
44AQI
60AQI
36AQI
48AQI
30AQI
36AQI
32AQI
39AQI
45AQI
48AQI
48AQI
44AQI
57AQI
56AQI
59AQI
65AQI
80AQI
85AQI
79AQI
81AQI
52AQI
47AQI
45AQI
39AQI
35AQI
40AQI
50AQI
46AQI
38AQI
50AQI
32AQI
43AQI
32AQI
40AQI
30AQI
33AQI
32AQI
46AQI
42AQI
37AQI
47AQI
33AQI
48AQI
43AQI
37AQI
39AQI
37AQI
37AQI
42AQI
40AQI
39AQI
42AQI
44AQI
68AQI
62AQI
62AQI
44AQI
37AQI
29AQI
30AQI
31AQI
35AQI
46AQI
47AQI
54AQI
50AQI
57AQI
58AQI
41AQI
37AQI
33AQI
52AQI
46AQI
42AQI
56AQI
56AQI
66AQI
63AQI
53AQI
64AQI
62AQI
51AQI
64AQI
55AQI
44AQI
49AQI
49AQI
40AQI
42AQI
42AQI
47AQI
48AQI
48AQI
43AQI
58AQI
45AQI
59AQI
57AQI
53AQI
57AQI
36AQI
53AQI
46AQI
53AQI
55AQI
43AQI
48AQI
39AQI
31AQI
38AQI
51AQI
52AQI
54AQI
44AQI
54AQI
55AQI
48AQI
47AQI
44AQI
44AQI
45AQI
38AQI
38AQI
51AQI
34AQI
42AQI
48AQI
54AQI
58AQI
60AQI
60AQI
66AQI
46AQI
51AQI
54AQI
42AQI
33AQI
38AQI
44AQI
28AQI
33AQI
39AQI
46AQI
51AQI
51AQI
50AQI
50AQI
59AQI
56AQI
37AQI
49AQI
51AQI
53AQI
66AQI
69AQI
39AQI
37AQI
43AQI
45AQI
48AQI
33AQI
33AQI
35AQI
31AQI
35AQI
38AQI
31AQI
27AQI
22AQI
19AQI
26AQI
26AQI
26AQI
28AQI
28AQI
34AQI
49AQI
70AQI
91AQI
78AQI
81AQI
62AQI
52AQI
51AQI
58AQI
67AQI
54AQI
43AQI
40AQI
39AQI
37AQI
46AQI
56AQI
56AQI
35AQI
33AQI
32AQI
32AQI
46AQI
46AQI
33AQI
27AQI
25AQI
24AQI
25AQI
26AQI
28AQI
33AQI
46AQI
48AQI
47AQI
40AQI
41AQI
45AQI
47AQI
38AQI
35AQI
42AQI
36AQI
50AQI
41AQI
49AQI
48AQI
46AQI
39AQI
46AQI
42AQI
No. of days
202546AQI
Highest AQI recorded in
January50AQI
Lowest AQI recorded in
June39AQI
202453AQI
Highest AQI recorded in
August92AQI
Lowest AQI recorded in
October37AQI
202346AQI
Highest AQI recorded in
April57AQI
Lowest AQI recorded in
August31AQI
202247AQI
Highest AQI recorded in
August62AQI
Lowest AQI recorded in
September36AQI
202145AQI
Highest AQI recorded in
March57AQI
Lowest AQI recorded in
August26AQI
202045AQI
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
July27AQI
Most & Least Polluted Years Over the Last 6 Years
Shinchimachi's annual 2025 AQI (46) shows an average percentage change of -3.6% (improved AQI) compared to previous years: 2020 (45), 2021 (45), 2022 (47), 2023 (46), 2024 (53).