Nishi, 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
Nishi, 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
Nishi, Kumamoto, Japan
5 AM6th Aug 2026
7 PM
4 AM7th Aug 2026
25AQI
21AQI
29AQI
23AQI
In the last 24 hours,
Nishi's AQI reached its highest point of 29 at 9 PM during the Night, while the lowest point, 21, was recorded at 7 PM during the Day between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Nishi, Kumamoto, Japan
24°C19/31°C
24°C18/31°C
25°C20/31°C
26°C20/34°C
26°C21/34°C
26°C20/33°C
26°C21/31°C
26°C22/31°C
26°C22/32°C
27°C22/35°C
26°C21/33°C
27°C21/34°C
26°C21/32°C
27°C21/35°C
27°C22/35°C
27°C21/35°C
27°C20/35°C
27°C21/36°C
27°C20/37°C
26°C19/35°C
24°C20/31°C
26°C20/32°C
26°C19/34°C
27°C20/36°C
28°C21/37°C
27°C22/37°C
27°C21/33°C
26°C20/35°C
27°C20/33°C
26°C25/28°C
41AQI
32AQI
38AQI
34AQI
2026 Days Vs Air Quality
Nishi, Kumamoto, Japan
83%
182
17%
37
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
Nishi, Kumamoto, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
45AQI (US)
35AQI (US)
38AQI (US)
35AQI (US)
23AQI (US)
34AQI (US)
28AQI (US)
18AQI (US)
35AQI (US)
32AQI (US)
43AQI (US)
49AQI (US)
49AQI (US)
50AQI (US)
62AQI (US)
53AQI (US)
23AQI (US)
25AQI (US)
42AQI (US)
52AQI (US)
30AQI (US)
20AQI (US)
47AQI (US)
34AQI (US)
40AQI (US)
33AQI (US)
22AQI (US)
42AQI (US)
45AQI (US)
23AQI (US)
24AQI (US)
41AQI (US)
37AQI (US)
31AQI (US)
18AQI (US)
30AQI (US)
48AQI (US)
31AQI (US)
28AQI (US)
38AQI (US)
34AQI (US)
51AQI (US)
64AQI (US)
41AQI (US)
21AQI (US)
45AQI (US)
26AQI (US)
47AQI (US)
49AQI (US)
62AQI (US)
49AQI (US)
21AQI (US)
17AQI (US)
48AQI (US)
50AQI (US)
50AQI (US)
39AQI (US)
11AQI (US)
35AQI (US)
55AQI (US)
52AQI (US)
54AQI (US)
49AQI (US)
45AQI (US)
54AQI (US)
37AQI (US)
52AQI (US)
48AQI (US)
46AQI (US)
62AQI (US)
61AQI (US)
58AQI (US)
58AQI (US)
19AQI (US)
44AQI (US)
35AQI (US)
46AQI (US)
25AQI (US)
45AQI (US)
53AQI (US)
20AQI (US)
54AQI (US)
77AQI (US)
87AQI (US)
44AQI (US)
13AQI (US)
24AQI (US)
54AQI (US)
46AQI (US)
41AQI (US)
47AQI (US)
47AQI (US)
32AQI (US)
26AQI (US)
38AQI (US)
43AQI (US)
34AQI (US)
38AQI (US)
34AQI (US)
42AQI (US)
40AQI (US)
37AQI (US)
40AQI (US)
32AQI (US)
37AQI (US)
37AQI (US)
40AQI (US)
42AQI (US)
31AQI (US)
30AQI (US)
40AQI (US)
46AQI (US)
52AQI (US)
46AQI (US)
35AQI (US)
32AQI (US)
51AQI (US)
53AQI (US)
38AQI (US)
23AQI (US)
24AQI (US)
34AQI (US)
36AQI (US)
28AQI (US)
30AQI (US)
40AQI (US)
29AQI (US)
26AQI (US)
13AQI (US)
30AQI (US)
35AQI (US)
77AQI (US)
62AQI (US)
53AQI (US)
47AQI (US)
60AQI (US)
65AQI (US)
69AQI (US)
60AQI (US)
62AQI (US)
54AQI (US)
40AQI (US)
23AQI (US)
25AQI (US)
29AQI (US)
50AQI (US)
32AQI (US)
27AQI (US)
11AQI (US)
17AQI (US)
24AQI (US)
22AQI (US)
34AQI (US)
15AQI (US)
36AQI (US)
13AQI (US)
18AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
22AQI (US)
25AQI (US)
22AQI (US)
25AQI (US)
26AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
16AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
35AQI (US)
40AQI (US)
18AQI (US)
20AQI (US)
23AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
26AQI (US)
24AQI (US)
21AQI (US)
25AQI (US)
27AQI (US)
31AQI (US)
39AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
39AQI (US)
45AQI (US)
46AQI (US)
64AQI (US)
51AQI (US)
38AQI (US)
46AQI (US)
52AQI (US)
25AQI (US)
49AQI (US)
51AQI (US)
27AQI (US)
21AQI (US)
31AQI (US)
26AQI (US)
48AQI (US)
56AQI (US)
49AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
36AQI (US)
38AQI (US)
46AQI (US)
39AQI (US)
42AQI (US)
24AQI (US)
33AQI (US)
36AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
October60AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
202440AQI (US)
Highest AQI (US) recorded in
January64AQI (US)
Lowest AQI (US) recorded in
July29AQI (US)
202341AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
August33AQI (US)
202243AQI (US)
Highest AQI (US) recorded in
May50AQI (US)
Lowest AQI (US) recorded in
September37AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
May47AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202047AQI (US)
Highest AQI (US) recorded in
August58AQI (US)
Lowest AQI (US) recorded in
July33AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Nishi's annual 2026 AQI (US) (37) shows an average percentage change of -12.9% (improved AQI (US)) compared to previous years: 2020 (47), 2021 (40), 2022 (43), 2023 (41), 2024 (40), 2025 (45).