Motonakanocho, Nagoya, Aichi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Motonakanocho, Nagoya, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 39 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Motonakanocho, Nagoya, Aichi, Japan
5 AM20th Sep 2025
6 PM
4 AM21st Sep 2025
40AQI
29AQI
45AQI
38AQI
In the last 24 hours,
Motonakanocho's AQI reached its highest point of 45 at 10 PM during the Night, while the lowest point, 29, was recorded at 11 AM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Motonakanocho, Nagoya, Aichi, Japan
31°C28/36°C
30°C27/33°C
31°C27/35°C
30°C27/34°C
29°C26/33°C
29°C26/34°C
29°C26/34°C
30°C26/34°C
32°C27/37°C
31°C27/37°C
31°C28/35°C
31°C27/36°C
30°C26/35°C
26°C24/27°C
25°C23/28°C
27°C23/32°C
28°C25/33°C
30°C26/35°C
30°C27/34°C
28°C25/32°C
26°C23/30°C
25°C24/28°C
26°C24/29°C
27°C25/30°C
29°C25/34°C
29°C25/33°C
29°C26/34°C
28°C25/32°C
25°C23/29°C
23°C23/24°C
--°C/°C
46AQI
39AQI
42AQI
41AQI
2025 Days Vs Air Quality
Motonakanocho, Nagoya, Aichi, Japan
89%
234
11%
29
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 264 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
Motonakanocho, Nagoya, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
30AQI
29AQI
27AQI
26AQI
25AQI
26AQI
26AQI
26AQI
22AQI
24AQI
23AQI
26AQI
31AQI
31AQI
26AQI
28AQI
24AQI
27AQI
27AQI
32AQI
31AQI
37AQI
38AQI
36AQI
33AQI
26AQI
29AQI
30AQI
29AQI
34AQI
37AQI
28AQI
30AQI
30AQI
30AQI
29AQI
30AQI
29AQI
28AQI
30AQI
30AQI
24AQI
31AQI
28AQI
30AQI
32AQI
33AQI
30AQI
30AQI
29AQI
30AQI
30AQI
31AQI
32AQI
31AQI
36AQI
39AQI
38AQI
39AQI
38AQI
35AQI
27AQI
24AQI
32AQI
31AQI
31AQI
35AQI
33AQI
31AQI
26AQI
35AQI
23AQI
21AQI
17AQI
16AQI
17AQI
15AQI
21AQI
32AQI
32AQI
41AQI
39AQI
50AQI
69AQI
59AQI
39AQI
33AQI
31AQI
34AQI
23AQI
24AQI
17AQI
18AQI
19AQI
17AQI
20AQI
22AQI
20AQI
24AQI
25AQI
25AQI
20AQI
25AQI
19AQI
21AQI
25AQI
30AQI
31AQI
30AQI
22AQI
23AQI
15AQI
14AQI
24AQI
23AQI
24AQI
23AQI
22AQI
25AQI
21AQI
20AQI
20AQI
19AQI
18AQI
16AQI
15AQI
16AQI
16AQI
15AQI
16AQI
20AQI
23AQI
25AQI
25AQI
23AQI
20AQI
25AQI
26AQI
35AQI
32AQI
25AQI
26AQI
23AQI
18AQI
18AQI
17AQI
16AQI
20AQI
17AQI
18AQI
15AQI
20AQI
16AQI
19AQI
20AQI
21AQI
25AQI
29AQI
22AQI
21AQI
20AQI
23AQI
25AQI
21AQI
20AQI
22AQI
25AQI
27AQI
30AQI
31AQI
26AQI
20AQI
17AQI
16AQI
17AQI
17AQI
21AQI
20AQI
26AQI
48AQI
59AQI
85AQI
77AQI
73AQI
81AQI
65AQI
68AQI
76AQI
88AQI
65AQI
54AQI
52AQI
53AQI
42AQI
50AQI
48AQI
42AQI
38AQI
36AQI
36AQI
37AQI
35AQI
38AQI
36AQI
31AQI
28AQI
28AQI
32AQI
37AQI
40AQI
42AQI
51AQI
49AQI
49AQI
64AQI
52AQI
55AQI
46AQI
40AQI
48AQI
42AQI
37AQI
37AQI
38AQI
45AQI
43AQI
45AQI
42AQI
47AQI
48AQI
49AQI
50AQI
48AQI
52AQI
58AQI
58AQI
57AQI
56AQI
51AQI
57AQI
56AQI
55AQI
44AQI
37AQI
40AQI
27AQI
27AQI
28AQI
35AQI
41AQI
41AQI
38AQI
31AQI
32AQI
28AQI
38AQI
35AQI
45AQI
51AQI
40AQI
36AQI
39AQI
29AQI
31AQI
32AQI
22AQI
21AQI
23AQI
51AQI
49AQI
37AQI
No. of days
202533AQI
Highest AQI recorded in
July51AQI
Lowest AQI recorded in
May21AQI
202432AQI
Highest AQI recorded in
April40AQI
Lowest AQI recorded in
December26AQI
202330AQI
Highest AQI recorded in
April38AQI
Lowest AQI recorded in
August22AQI
202231AQI
Highest AQI recorded in
August61AQI
Lowest AQI recorded in
December24AQI
202124AQI
Highest AQI recorded in
May40AQI
Lowest AQI recorded in
January12AQI
202014AQI
Highest AQI recorded in
August20AQI
Lowest AQI recorded in
December10AQI
Most & Least Polluted Years Over the Last 6 Years
Motonakanocho's annual 2025 AQI (33) shows an average percentage change of 36.8% (worsened AQI) compared to previous years: 2020 (14), 2021 (24), 2022 (31), 2023 (30), 2024 (32).