Nagoya, Kiyosu, Aichi, 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
Nagoya, Kiyosu, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 39 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Nagoya, Kiyosu, Aichi, Japan
5 AM12th Aug 2026
6 PM
4 AM13th Aug 2026
25AQI
21AQI
38AQI
21AQI
In the last 24 hours,
Nagoya's AQI reached its highest point of 38 at 11 PM during the Night, while the lowest point, 21, was recorded at 4 AM during the Night between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Nagoya, Kiyosu, Aichi, Japan
31°C26/36°C
32°C28/36°C
30°C27/33°C
29°C27/31°C
30°C27/34°C
31°C27/36°C
33°C28/38°C
33°C29/39°C
33°C28/39°C
33°C28/38°C
33°C28/39°C
31°C28/36°C
31°C27/37°C
28°C25/32°C
29°C25/34°C
31°C27/37°C
31°C27/37°C
31°C27/37°C
32°C27/38°C
29°C27/32°C
28°C25/31°C
30°C25/35°C
30°C27/36°C
30°C27/35°C
30°C27/35°C
29°C26/34°C
29°C27/34°C
27°C24/32°C
27°C25/32°C
27°C25/31°C
53AQI
40AQI
47AQI
36AQI
2026 Days Vs Air Quality
Nagoya, Kiyosu, Aichi, Japan
75%
168
25%
57
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2026, 75% of 225 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
Nagoya, Kiyosu, Aichi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
18AQI (US)
18AQI (US)
38AQI (US)
54AQI (US)
21AQI (US)
45AQI (US)
41AQI (US)
24AQI (US)
57AQI (US)
46AQI (US)
25AQI (US)
49AQI (US)
21AQI (US)
41AQI (US)
67AQI (US)
72AQI (US)
61AQI (US)
75AQI (US)
36AQI (US)
19AQI (US)
24AQI (US)
40AQI (US)
47AQI (US)
43AQI (US)
30AQI (US)
40AQI (US)
32AQI (US)
30AQI (US)
41AQI (US)
37AQI (US)
41AQI (US)
47AQI (US)
34AQI (US)
49AQI (US)
65AQI (US)
69AQI (US)
21AQI (US)
22AQI (US)
38AQI (US)
45AQI (US)
43AQI (US)
62AQI (US)
60AQI (US)
68AQI (US)
80AQI (US)
64AQI (US)
32AQI (US)
32AQI (US)
35AQI (US)
39AQI (US)
61AQI (US)
56AQI (US)
61AQI (US)
63AQI (US)
50AQI (US)
27AQI (US)
52AQI (US)
26AQI (US)
29AQI (US)
63AQI (US)
44AQI (US)
12AQI (US)
42AQI (US)
56AQI (US)
46AQI (US)
38AQI (US)
47AQI (US)
59AQI (US)
56AQI (US)
61AQI (US)
36AQI (US)
45AQI (US)
57AQI (US)
50AQI (US)
49AQI (US)
75AQI (US)
41AQI (US)
50AQI (US)
43AQI (US)
63AQI (US)
62AQI (US)
56AQI (US)
54AQI (US)
22AQI (US)
32AQI (US)
66AQI (US)
70AQI (US)
75AQI (US)
29AQI (US)
21AQI (US)
42AQI (US)
52AQI (US)
42AQI (US)
31AQI (US)
53AQI (US)
46AQI (US)
38AQI (US)
39AQI (US)
48AQI (US)
45AQI (US)
39AQI (US)
47AQI (US)
66AQI (US)
41AQI (US)
31AQI (US)
46AQI (US)
32AQI (US)
32AQI (US)
37AQI (US)
40AQI (US)
48AQI (US)
39AQI (US)
27AQI (US)
46AQI (US)
50AQI (US)
49AQI (US)
48AQI (US)
42AQI (US)
35AQI (US)
46AQI (US)
32AQI (US)
56AQI (US)
26AQI (US)
23AQI (US)
29AQI (US)
32AQI (US)
29AQI (US)
27AQI (US)
33AQI (US)
34AQI (US)
34AQI (US)
39AQI (US)
35AQI (US)
53AQI (US)
84AQI (US)
68AQI (US)
53AQI (US)
48AQI (US)
61AQI (US)
60AQI (US)
61AQI (US)
54AQI (US)
59AQI (US)
49AQI (US)
38AQI (US)
23AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
29AQI (US)
30AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
32AQI (US)
39AQI (US)
44AQI (US)
48AQI (US)
29AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
34AQI (US)
24AQI (US)
26AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
28AQI (US)
30AQI (US)
26AQI (US)
33AQI (US)
65AQI (US)
74AQI (US)
57AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
22AQI (US)
22AQI (US)
27AQI (US)
41AQI (US)
36AQI (US)
34AQI (US)
36AQI (US)
40AQI (US)
30AQI (US)
27AQI (US)
45AQI (US)
54AQI (US)
58AQI (US)
62AQI (US)
35AQI (US)
38AQI (US)
74AQI (US)
85AQI (US)
58AQI (US)
50AQI (US)
52AQI (US)
46AQI (US)
38AQI (US)
40AQI (US)
32AQI (US)
57AQI (US)
42AQI (US)
48AQI (US)
53AQI (US)
48AQI (US)
41AQI (US)
44AQI (US)
37AQI (US)
28AQI (US)
29AQI (US)
26AQI (US)
29AQI (US)
31AQI (US)
24AQI (US)
39AQI (US)
39AQI (US)
48AQI (US)
49AQI (US)
42AQI (US)
42AQI (US)
31AQI (US)
43AQI (US)
37AQI (US)
No. of days
202642AQI (US)
Highest AQI (US) recorded in
March49AQI (US)
Lowest AQI (US) recorded in
June31AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
July55AQI (US)
Lowest AQI (US) recorded in
May22AQI (US)
202443AQI (US)
Highest AQI (US) recorded in
April65AQI (US)
Lowest AQI (US) recorded in
December28AQI (US)
202352AQI (US)
Highest AQI (US) recorded in
April64AQI (US)
Lowest AQI (US) recorded in
August42AQI (US)
202243AQI (US)
Highest AQI (US) recorded in
May59AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202145AQI (US)
Highest AQI (US) recorded in
September49AQI (US)
Lowest AQI (US) recorded in
December40AQI (US)
202046AQI (US)
Highest AQI (US) recorded in
August52AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Nagoya's annual 2026 AQI (US) (42) shows an average percentage change of -5.2% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (45), 2022 (43), 2023 (52), 2024 (43), 2025 (39).