Tenpaku Ku, Nagoya, Aichi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Tenpaku Ku, Nagoya, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (14th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 37 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Oct - 15th Oct 2025
Tenpaku Ku, Nagoya, Aichi, Japan
5 AM14th Oct 2025
5 PM
4 AM15th Oct 2025
54AQI
33AQI
53AQI
43AQI
In the last 24 hours,
Tenpaku Ku's AQI reached its highest point of 54 at 1 PM during the Day, while the lowest point, 33, was recorded at 5 AM during the Day between 14th Oct and 15th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Tenpaku Ku, Nagoya, Aichi, Japan
29°C25/34°C
29°C25/33°C
29°C26/34°C
28°C25/32°C
25°C23/29°C
23°C23/24°C
25°C22/30°C
23°C19/27°C
23°C21/26°C
24°C21/27°C
25°C23/28°C
27°C23/32°C
25°C21/30°C
25°C22/28°C
24°C22/28°C
23°C20/27°C
23°C20/26°C
23°C18/27°C
23°C21/25°C
21°C20/22°C
22°C20/24°C
24°C20/30°C
24°C23/26°C
26°C22/30°C
24°C21/29°C
21°C19/23°C
22°C21/23°C
24°C21/27°C
25°C22/29°C
22°C19/24°C
--°C/°C
43AQI
42AQI
42AQI
39AQI
2025 Days Vs Air Quality
Tenpaku Ku, Nagoya, Aichi, Japan
90%
258
10%
29
Total number of days with different AQI categories in last 288 days in 2025 (77 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 288 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Tenpaku Ku, Nagoya, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
27AQI
27AQI
27AQI
25AQI
21AQI
26AQI
25AQI
26AQI
22AQI
24AQI
24AQI
26AQI
29AQI
29AQI
25AQI
27AQI
25AQI
27AQI
28AQI
31AQI
31AQI
37AQI
36AQI
36AQI
32AQI
25AQI
29AQI
29AQI
29AQI
32AQI
36AQI
27AQI
29AQI
29AQI
30AQI
29AQI
28AQI
28AQI
28AQI
29AQI
30AQI
24AQI
31AQI
27AQI
29AQI
30AQI
32AQI
30AQI
30AQI
28AQI
29AQI
30AQI
31AQI
31AQI
30AQI
36AQI
38AQI
37AQI
39AQI
37AQI
32AQI
25AQI
22AQI
31AQI
30AQI
30AQI
34AQI
33AQI
28AQI
25AQI
30AQI
21AQI
20AQI
16AQI
15AQI
16AQI
14AQI
18AQI
29AQI
29AQI
36AQI
35AQI
44AQI
48AQI
40AQI
29AQI
24AQI
20AQI
22AQI
18AQI
19AQI
17AQI
16AQI
17AQI
14AQI
15AQI
17AQI
16AQI
19AQI
20AQI
20AQI
17AQI
20AQI
17AQI
18AQI
20AQI
23AQI
22AQI
21AQI
17AQI
16AQI
14AQI
14AQI
17AQI
17AQI
18AQI
21AQI
18AQI
21AQI
17AQI
18AQI
18AQI
18AQI
20AQI
16AQI
15AQI
18AQI
16AQI
14AQI
15AQI
17AQI
19AQI
19AQI
20AQI
20AQI
18AQI
20AQI
20AQI
26AQI
24AQI
22AQI
19AQI
19AQI
16AQI
17AQI
17AQI
15AQI
17AQI
15AQI
15AQI
14AQI
17AQI
15AQI
17AQI
18AQI
19AQI
21AQI
23AQI
19AQI
17AQI
18AQI
20AQI
18AQI
20AQI
18AQI
18AQI
20AQI
22AQI
24AQI
26AQI
23AQI
16AQI
15AQI
15AQI
16AQI
16AQI
19AQI
17AQI
19AQI
37AQI
45AQI
71AQI
80AQI
70AQI
76AQI
64AQI
68AQI
75AQI
84AQI
64AQI
55AQI
54AQI
53AQI
46AQI
49AQI
48AQI
43AQI
40AQI
34AQI
32AQI
33AQI
33AQI
35AQI
34AQI
27AQI
25AQI
26AQI
31AQI
37AQI
39AQI
38AQI
44AQI
46AQI
48AQI
67AQI
53AQI
53AQI
45AQI
38AQI
49AQI
38AQI
36AQI
36AQI
36AQI
38AQI
39AQI
40AQI
41AQI
44AQI
49AQI
48AQI
51AQI
50AQI
50AQI
56AQI
57AQI
55AQI
53AQI
50AQI
55AQI
55AQI
54AQI
43AQI
36AQI
39AQI
25AQI
24AQI
27AQI
33AQI
38AQI
40AQI
35AQI
29AQI
31AQI
28AQI
35AQI
33AQI
45AQI
50AQI
40AQI
33AQI
37AQI
27AQI
30AQI
35AQI
33AQI
38AQI
30AQI
32AQI
31AQI
24AQI
31AQI
43AQI
39AQI
57AQI
63AQI
55AQI
49AQI
51AQI
57AQI
43AQI
50AQI
55AQI
48AQI
50AQI
37AQI
28AQI
30AQI
28AQI
18AQI
18AQI
19AQI
49AQI
48AQI
34AQI
50AQI
No. of days
202531AQI
Highest AQI recorded in
October50AQI
Lowest AQI recorded in
April18AQI
202437AQI
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
December24AQI
202339AQI
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
August27AQI
202239AQI
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
August17AQI
202136AQI
Highest AQI recorded in
June44AQI
Lowest AQI recorded in
August30AQI
202034AQI
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
September27AQI
Most & Least Polluted Years Over the Last 6 Years
Tenpaku Ku's annual 2025 AQI (31) shows an average percentage change of -15.3% (improved AQI) compared to previous years: 2020 (34), 2021 (36), 2022 (39), 2023 (39), 2024 (37).