Yono, Daiwanishi, Hyogo, 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
Yono, Daiwanishi, Hyogo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Yono, Daiwanishi, Hyogo, Japan
5 AM20th Sep 2025
6 PM
4 AM21st Sep 2025
AQI
AQI
62AQI
24AQI
In the last 24 hours,
Yono's AQI reached its highest point of 62 at 11 PM during the Night, while the lowest point, 24, was recorded at 2 PM during the Night between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Yono, Daiwanishi, Hyogo, Japan
29°C26/33°C
29°C26/34°C
29°C26/33°C
29°C26/33°C
28°C25/32°C
28°C25/32°C
28°C24/33°C
29°C26/33°C
30°C25/35°C
30°C26/35°C
29°C26/33°C
29°C26/33°C
29°C26/34°C
26°C24/27°C
26°C24/29°C
27°C22/33°C
28°C24/32°C
28°C25/32°C
29°C25/33°C
28°C25/33°C
26°C23/30°C
27°C24/30°C
27°C24/31°C
28°C25/31°C
29°C25/33°C
29°C25/33°C
28°C25/32°C
27°C24/31°C
25°C22/29°C
--°C/°C
--°C/°C
45AQI
39AQI
46AQI
41AQI
2025 Days Vs Air Quality
Yono, Daiwanishi, Hyogo, Japan
73%
190
27%
72
Total number of days with different AQI categories in last 263 days in 2025 (102 days remaining)
Under WHO’s Safe Air Quality Limits: 73%
Health Risk Level:
Low
In 2025, 73% of 263 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
Yono, Daiwanishi, Hyogo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
39AQI
33AQI
32AQI
31AQI
28AQI
33AQI
28AQI
30AQI
26AQI
24AQI
37AQI
35AQI
51AQI
41AQI
40AQI
34AQI
32AQI
35AQI
42AQI
38AQI
53AQI
67AQI
56AQI
44AQI
40AQI
34AQI
35AQI
33AQI
41AQI
75AQI
66AQI
48AQI
52AQI
41AQI
40AQI
33AQI
37AQI
31AQI
31AQI
29AQI
30AQI
36AQI
30AQI
35AQI
28AQI
44AQI
36AQI
37AQI
32AQI
29AQI
30AQI
32AQI
32AQI
32AQI
34AQI
42AQI
59AQI
55AQI
60AQI
65AQI
44AQI
43AQI
31AQI
37AQI
34AQI
38AQI
37AQI
38AQI
31AQI
34AQI
46AQI
41AQI
35AQI
23AQI
31AQI
27AQI
28AQI
43AQI
56AQI
61AQI
71AQI
69AQI
71AQI
89AQI
59AQI
47AQI
44AQI
36AQI
39AQI
33AQI
32AQI
24AQI
31AQI
38AQI
41AQI
46AQI
47AQI
51AQI
53AQI
53AQI
51AQI
34AQI
49AQI
28AQI
48AQI
48AQI
57AQI
57AQI
49AQI
42AQI
47AQI
26AQI
29AQI
67AQI
52AQI
60AQI
43AQI
54AQI
60AQI
57AQI
40AQI
47AQI
39AQI
44AQI
28AQI
33AQI
32AQI
36AQI
31AQI
35AQI
50AQI
54AQI
57AQI
52AQI
51AQI
42AQI
48AQI
53AQI
64AQI
45AQI
41AQI
53AQI
38AQI
28AQI
29AQI
29AQI
30AQI
37AQI
37AQI
37AQI
43AQI
48AQI
28AQI
47AQI
44AQI
47AQI
53AQI
61AQI
43AQI
29AQI
38AQI
46AQI
47AQI
32AQI
33AQI
43AQI
38AQI
49AQI
54AQI
58AQI
53AQI
52AQI
40AQI
35AQI
33AQI
36AQI
51AQI
45AQI
51AQI
57AQI
64AQI
86AQI
79AQI
96AQI
89AQI
79AQI
69AQI
72AQI
80AQI
64AQI
54AQI
54AQI
50AQI
41AQI
49AQI
54AQI
36AQI
39AQI
35AQI
32AQI
32AQI
38AQI
43AQI
37AQI
33AQI
28AQI
28AQI
33AQI
41AQI
44AQI
45AQI
46AQI
46AQI
50AQI
60AQI
53AQI
52AQI
46AQI
42AQI
45AQI
42AQI
36AQI
37AQI
41AQI
50AQI
51AQI
50AQI
47AQI
50AQI
48AQI
49AQI
47AQI
46AQI
49AQI
55AQI
57AQI
57AQI
54AQI
54AQI
54AQI
55AQI
54AQI
42AQI
38AQI
39AQI
29AQI
24AQI
31AQI
34AQI
39AQI
39AQI
41AQI
32AQI
31AQI
33AQI
42AQI
40AQI
46AQI
51AQI
34AQI
37AQI
39AQI
38AQI
45AQI
45AQI
42AQI
44AQI
52AQI
49AQI
37AQI
No. of days
202544AQI
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
September37AQI
202434AQI
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
November29AQI
202335AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August23AQI
202235AQI
Highest AQI recorded in
May45AQI
Lowest AQI recorded in
August21AQI
202134AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
August28AQI
202032AQI
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
July23AQI
Most & Least Polluted Years Over the Last 6 Years
Yono's annual 2025 AQI (44) shows an average percentage change of 29.5% (worsened AQI) compared to previous years: 2020 (32), 2021 (34), 2022 (35), 2023 (35), 2024 (34).