Nishiki, Kiyosu, 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
Nishiki, Kiyosu, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Nishiki, Kiyosu, Aichi, Japan
5 AM4th Oct 2025
5 PM
4 AM5th Oct 2025
AQI
AQI
70AQI
53AQI
In the last 24 hours,
Nishiki's AQI reached its highest point of 70 at 5 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Nishiki, Kiyosu, Aichi, Japan
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
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
--°C/°C
--°C/°C
41AQI
38AQI
38AQI
37AQI
2025 Days Vs Air Quality
Nishiki, Kiyosu, Aichi, Japan
91%
250
9%
26
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 277 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
Nishiki, Kiyosu, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
31AQI
28AQI
27AQI
26AQI
23AQI
26AQI
25AQI
26AQI
22AQI
23AQI
22AQI
25AQI
30AQI
29AQI
24AQI
26AQI
24AQI
27AQI
27AQI
31AQI
30AQI
36AQI
35AQI
36AQI
31AQI
25AQI
29AQI
29AQI
28AQI
31AQI
37AQI
26AQI
30AQI
29AQI
29AQI
29AQI
29AQI
28AQI
28AQI
29AQI
30AQI
24AQI
31AQI
27AQI
30AQI
30AQI
32AQI
30AQI
30AQI
29AQI
29AQI
30AQI
31AQI
31AQI
30AQI
35AQI
38AQI
37AQI
39AQI
38AQI
33AQI
24AQI
23AQI
31AQI
30AQI
32AQI
35AQI
33AQI
30AQI
27AQI
35AQI
22AQI
21AQI
17AQI
16AQI
16AQI
14AQI
19AQI
31AQI
30AQI
39AQI
38AQI
47AQI
61AQI
54AQI
34AQI
29AQI
27AQI
28AQI
21AQI
22AQI
17AQI
16AQI
18AQI
16AQI
18AQI
19AQI
18AQI
24AQI
24AQI
24AQI
18AQI
23AQI
17AQI
20AQI
23AQI
29AQI
30AQI
28AQI
22AQI
20AQI
14AQI
13AQI
24AQI
22AQI
23AQI
22AQI
22AQI
24AQI
21AQI
18AQI
19AQI
18AQI
18AQI
16AQI
15AQI
16AQI
16AQI
15AQI
15AQI
19AQI
22AQI
25AQI
24AQI
23AQI
19AQI
24AQI
26AQI
36AQI
34AQI
25AQI
25AQI
23AQI
17AQI
18AQI
17AQI
16AQI
19AQI
16AQI
17AQI
15AQI
20AQI
16AQI
18AQI
19AQI
20AQI
27AQI
30AQI
23AQI
19AQI
18AQI
21AQI
22AQI
18AQI
18AQI
20AQI
23AQI
24AQI
27AQI
29AQI
25AQI
17AQI
16AQI
17AQI
17AQI
17AQI
20AQI
19AQI
22AQI
42AQI
55AQI
79AQI
85AQI
72AQI
77AQI
64AQI
68AQI
76AQI
85AQI
66AQI
54AQI
54AQI
53AQI
45AQI
50AQI
48AQI
41AQI
40AQI
37AQI
36AQI
36AQI
36AQI
37AQI
37AQI
30AQI
28AQI
28AQI
32AQI
39AQI
39AQI
40AQI
42AQI
44AQI
47AQI
61AQI
53AQI
52AQI
47AQI
41AQI
48AQI
42AQI
38AQI
37AQI
37AQI
40AQI
41AQI
41AQI
43AQI
46AQI
49AQI
46AQI
48AQI
49AQI
49AQI
58AQI
57AQI
56AQI
51AQI
50AQI
54AQI
56AQI
55AQI
46AQI
39AQI
40AQI
27AQI
27AQI
30AQI
33AQI
40AQI
43AQI
40AQI
34AQI
32AQI
29AQI
38AQI
36AQI
43AQI
50AQI
42AQI
35AQI
39AQI
31AQI
32AQI
37AQI
35AQI
41AQI
31AQI
32AQI
42AQI
35AQI
30AQI
45AQI
43AQI
52AQI
28AQI
30AQI
31AQI
21AQI
20AQI
21AQI
51AQI
48AQI
36AQI
47AQI
No. of days
202532AQI
Highest AQI recorded in
July51AQI
Lowest AQI recorded in
May20AQI
202435AQI
Highest AQI recorded in
April57AQI
Lowest AQI recorded in
December25AQI
202337AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
November28AQI
202019AQI
Highest AQI recorded in
September19AQI
Lowest AQI recorded in
September19AQI
Most & Least Polluted Years Over the Last 4 Years
Nishiki's annual 2025 AQI (32) shows an average percentage change of 15.1% (worsened AQI) compared to previous years: 2020 (19), 2023 (37), 2024 (35).