Shindenmachi, Shimabara, Nagasaki, 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
Shindenmachi, Shimabara, Nagasaki, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Shindenmachi, Shimabara, Nagasaki, Japan
5 AM15th Aug 2026
7 PM
4 AM16th Aug 2026
50AQI
17AQI
46AQI
21AQI
In the last 24 hours,
Shindenmachi's AQI reached its highest point of 50 at 6 PM during the Day, while the lowest point, 17, was recorded at 9 AM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Shindenmachi, Shimabara, Nagasaki, Japan
27°C25/28°C
27°C26/29°C
27°C26/29°C
27°C26/29°C
27°C25/30°C
27°C25/29°C
28°C25/30°C
28°C26/31°C
29°C26/32°C
29°C26/33°C
28°C25/30°C
26°C25/28°C
27°C25/30°C
27°C25/30°C
28°C25/31°C
29°C26/33°C
30°C27/35°C
29°C27/32°C
29°C26/32°C
29°C26/33°C
28°C27/30°C
28°C26/31°C
28°C25/32°C
28°C25/31°C
26°C24/30°C
25°C22/30°C
26°C24/28°C
26°C24/29°C
26°C24/29°C
25°C24/25°C
34AQI
28AQI
32AQI
29AQI
2026 Days Vs Air Quality
Shindenmachi, Shimabara, Nagasaki, Japan
87%
198
13%
30
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 228 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
Shindenmachi, Shimabara, Nagasaki, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI (US)
18AQI (US)
23AQI (US)
39AQI (US)
45AQI (US)
16AQI (US)
33AQI (US)
28AQI (US)
15AQI (US)
26AQI (US)
27AQI (US)
23AQI (US)
29AQI (US)
19AQI (US)
35AQI (US)
43AQI (US)
58AQI (US)
62AQI (US)
70AQI (US)
32AQI (US)
13AQI (US)
24AQI (US)
38AQI (US)
45AQI (US)
24AQI (US)
14AQI (US)
35AQI (US)
26AQI (US)
37AQI (US)
30AQI (US)
16AQI (US)
49AQI (US)
29AQI (US)
36AQI (US)
32AQI (US)
38AQI (US)
50AQI (US)
39AQI (US)
24AQI (US)
35AQI (US)
41AQI (US)
36AQI (US)
54AQI (US)
37AQI (US)
49AQI (US)
49AQI (US)
57AQI (US)
24AQI (US)
26AQI (US)
58AQI (US)
27AQI (US)
43AQI (US)
30AQI (US)
36AQI (US)
20AQI (US)
20AQI (US)
19AQI (US)
48AQI (US)
37AQI (US)
34AQI (US)
51AQI (US)
11AQI (US)
28AQI (US)
46AQI (US)
47AQI (US)
48AQI (US)
36AQI (US)
41AQI (US)
44AQI (US)
35AQI (US)
46AQI (US)
36AQI (US)
43AQI (US)
56AQI (US)
48AQI (US)
47AQI (US)
55AQI (US)
30AQI (US)
56AQI (US)
31AQI (US)
50AQI (US)
24AQI (US)
51AQI (US)
31AQI (US)
30AQI (US)
53AQI (US)
72AQI (US)
90AQI (US)
45AQI (US)
22AQI (US)
19AQI (US)
56AQI (US)
47AQI (US)
39AQI (US)
34AQI (US)
57AQI (US)
37AQI (US)
24AQI (US)
30AQI (US)
36AQI (US)
35AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
30AQI (US)
35AQI (US)
35AQI (US)
25AQI (US)
27AQI (US)
31AQI (US)
48AQI (US)
41AQI (US)
14AQI (US)
29AQI (US)
42AQI (US)
47AQI (US)
53AQI (US)
46AQI (US)
36AQI (US)
32AQI (US)
50AQI (US)
50AQI (US)
33AQI (US)
26AQI (US)
32AQI (US)
37AQI (US)
32AQI (US)
27AQI (US)
29AQI (US)
36AQI (US)
50AQI (US)
34AQI (US)
22AQI (US)
30AQI (US)
38AQI (US)
77AQI (US)
62AQI (US)
53AQI (US)
46AQI (US)
59AQI (US)
66AQI (US)
68AQI (US)
63AQI (US)
62AQI (US)
55AQI (US)
41AQI (US)
24AQI (US)
25AQI (US)
30AQI (US)
33AQI (US)
52AQI (US)
66AQI (US)
19AQI (US)
15AQI (US)
24AQI (US)
22AQI (US)
48AQI (US)
14AQI (US)
18AQI (US)
23AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
19AQI (US)
18AQI (US)
27AQI (US)
22AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
24AQI (US)
20AQI (US)
21AQI (US)
25AQI (US)
24AQI (US)
21AQI (US)
21AQI (US)
26AQI (US)
26AQI (US)
22AQI (US)
37AQI (US)
19AQI (US)
24AQI (US)
37AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
33AQI (US)
28AQI (US)
29AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
32AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
27AQI (US)
47AQI (US)
57AQI (US)
60AQI (US)
31AQI (US)
20AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
27AQI (US)
23AQI (US)
34AQI (US)
31AQI (US)
34AQI (US)
26AQI (US)
31AQI (US)
37AQI (US)
43AQI (US)
36AQI (US)
43AQI (US)
25AQI (US)
27AQI (US)
33AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
May50AQI (US)
Lowest AQI (US) recorded in
July24AQI (US)
202342AQI (US)
Highest AQI (US) recorded in
April50AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202242AQI (US)
Highest AQI (US) recorded in
March49AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
June47AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202040AQI (US)
Highest AQI (US) recorded in
August51AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Shindenmachi's annual 2026 AQI (US) (34) shows an average percentage change of -16.6% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (40), 2022 (42), 2023 (42), 2024 (39), 2025 (42).