Iwashita, 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
Iwashita, Kumamoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 25 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Iwashita, Kumamoto, Japan
5 AM6th Aug 2026
7 PM
4 AM7th Aug 2026
25AQI
8AQI
25AQI
21AQI
In the last 24 hours,
Iwashita's AQI reached its highest point of 25 at 5 PM during the Day, while the lowest point, 8, was recorded at 10 AM during the Day between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Iwashita, Kumamoto, Japan
27°C23/30°C
27°C24/31°C
28°C25/32°C
29°C26/33°C
27°C26/29°C
27°C25/30°C
27°C25/28°C
26°C25/28°C
27°C25/29°C
27°C25/29°C
28°C26/31°C
28°C26/30°C
28°C26/30°C
28°C25/32°C
28°C26/31°C
28°C26/31°C
29°C26/32°C
29°C26/33°C
30°C27/34°C
28°C26/32°C
27°C25/29°C
28°C25/31°C
28°C25/31°C
28°C25/32°C
29°C26/33°C
31°C28/35°C
30°C27/33°C
30°C26/34°C
29°C26/34°C
29°C28/31°C
36AQI
30AQI
34AQI
30AQI
2026 Days Vs Air Quality
Iwashita, Kumamoto, Japan
83%
181
17%
38
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 219 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
Iwashita, Kumamoto, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI (US)
18AQI (US)
18AQI (US)
37AQI (US)
47AQI (US)
41AQI (US)
39AQI (US)
36AQI (US)
26AQI (US)
34AQI (US)
39AQI (US)
24AQI (US)
37AQI (US)
42AQI (US)
50AQI (US)
35AQI (US)
51AQI (US)
55AQI (US)
61AQI (US)
43AQI (US)
21AQI (US)
24AQI (US)
37AQI (US)
50AQI (US)
31AQI (US)
21AQI (US)
37AQI (US)
31AQI (US)
35AQI (US)
34AQI (US)
23AQI (US)
48AQI (US)
46AQI (US)
45AQI (US)
40AQI (US)
39AQI (US)
42AQI (US)
37AQI (US)
22AQI (US)
38AQI (US)
40AQI (US)
43AQI (US)
48AQI (US)
51AQI (US)
50AQI (US)
44AQI (US)
60AQI (US)
38AQI (US)
24AQI (US)
57AQI (US)
43AQI (US)
47AQI (US)
53AQI (US)
48AQI (US)
38AQI (US)
28AQI (US)
16AQI (US)
41AQI (US)
46AQI (US)
38AQI (US)
31AQI (US)
14AQI (US)
51AQI (US)
51AQI (US)
52AQI (US)
52AQI (US)
47AQI (US)
54AQI (US)
49AQI (US)
40AQI (US)
55AQI (US)
43AQI (US)
47AQI (US)
60AQI (US)
61AQI (US)
53AQI (US)
57AQI (US)
23AQI (US)
50AQI (US)
40AQI (US)
44AQI (US)
20AQI (US)
51AQI (US)
28AQI (US)
25AQI (US)
58AQI (US)
77AQI (US)
88AQI (US)
52AQI (US)
21AQI (US)
19AQI (US)
55AQI (US)
52AQI (US)
44AQI (US)
44AQI (US)
59AQI (US)
34AQI (US)
30AQI (US)
35AQI (US)
44AQI (US)
36AQI (US)
34AQI (US)
32AQI (US)
35AQI (US)
33AQI (US)
36AQI (US)
38AQI (US)
30AQI (US)
24AQI (US)
25AQI (US)
40AQI (US)
43AQI (US)
19AQI (US)
20AQI (US)
43AQI (US)
47AQI (US)
53AQI (US)
47AQI (US)
37AQI (US)
33AQI (US)
38AQI (US)
52AQI (US)
33AQI (US)
27AQI (US)
25AQI (US)
31AQI (US)
31AQI (US)
28AQI (US)
29AQI (US)
34AQI (US)
45AQI (US)
29AQI (US)
36AQI (US)
32AQI (US)
39AQI (US)
78AQI (US)
63AQI (US)
52AQI (US)
46AQI (US)
61AQI (US)
66AQI (US)
68AQI (US)
62AQI (US)
63AQI (US)
54AQI (US)
41AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
38AQI (US)
48AQI (US)
49AQI (US)
10AQI (US)
14AQI (US)
24AQI (US)
23AQI (US)
29AQI (US)
11AQI (US)
24AQI (US)
23AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
20AQI (US)
21AQI (US)
18AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
21AQI (US)
22AQI (US)
26AQI (US)
25AQI (US)
20AQI (US)
27AQI (US)
25AQI (US)
27AQI (US)
42AQI (US)
27AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
38AQI (US)
36AQI (US)
32AQI (US)
45AQI (US)
42AQI (US)
36AQI (US)
40AQI (US)
45AQI (US)
28AQI (US)
33AQI (US)
45AQI (US)
27AQI (US)
24AQI (US)
32AQI (US)
26AQI (US)
46AQI (US)
58AQI (US)
57AQI (US)
19AQI (US)
17AQI (US)
25AQI (US)
36AQI (US)
42AQI (US)
46AQI (US)
37AQI (US)
43AQI (US)
24AQI (US)
30AQI (US)
35AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202543AQI (US)
Highest AQI (US) recorded in
October53AQI (US)
Lowest AQI (US) recorded in
September31AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
January65AQI (US)
Lowest AQI (US) recorded in
July24AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
May47AQI (US)
Lowest AQI (US) recorded in
September35AQI (US)
202137AQI (US)
Highest AQI (US) recorded in
May44AQI (US)
Lowest AQI (US) recorded in
August24AQI (US)
202039AQI (US)
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
July24AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Iwashita's annual 2026 AQI (US) (37) shows an average percentage change of -4.4% (improved AQI (US)) compared to previous years: 2020 (39), 2021 (37), 2022 (40), 2023 (37), 2024 (37), 2025 (43).