Onukimachi, Nobeoka, Miyazaki, 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
Onukimachi, Nobeoka, Miyazaki, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 46 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Onukimachi, Nobeoka, Miyazaki, Japan
5 AM5th Aug 2025
7 PM
4 AM6th Aug 2025
AQI
AQI
56AQI
41AQI
In the last 24 hours,
Onukimachi's AQI reached its highest point of 56 at 4 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Onukimachi, Nobeoka, Miyazaki, Japan
26°C22/32°C
27°C23/31°C
26°C23/29°C
25°C23/28°C
25°C23/27°C
25°C23/27°C
25°C23/28°C
26°C22/31°C
25°C21/30°C
25°C20/29°C
26°C24/29°C
25°C23/26°C
25°C21/29°C
26°C23/29°C
26°C22/30°C
26°C22/30°C
26°C21/30°C
26°C24/28°C
25°C24/27°C
25°C23/27°C
25°C23/27°C
26°C23/29°C
26°C23/29°C
25°C21/29°C
26°C22/29°C
27°C23/31°C
27°C23/33°C
27°C24/31°C
27°C24/31°C
--°C/°C
--°C/°C
46AQI
36AQI
45AQI
43AQI
2025 Days Vs Air Quality
Onukimachi, Nobeoka, Miyazaki, Japan
80%
173
20%
44
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 217 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
Onukimachi, Nobeoka, Miyazaki, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
33AQI
34AQI
31AQI
32AQI
44AQI
31AQI
37AQI
30AQI
30AQI
28AQI
35AQI
40AQI
41AQI
42AQI
35AQI
39AQI
35AQI
40AQI
37AQI
57AQI
54AQI
61AQI
63AQI
46AQI
42AQI
36AQI
33AQI
31AQI
34AQI
41AQI
42AQI
33AQI
44AQI
31AQI
37AQI
32AQI
32AQI
30AQI
30AQI
30AQI
36AQI
39AQI
31AQI
35AQI
31AQI
34AQI
44AQI
33AQI
39AQI
33AQI
35AQI
43AQI
36AQI
39AQI
35AQI
36AQI
54AQI
44AQI
64AQI
63AQI
46AQI
33AQI
31AQI
35AQI
33AQI
38AQI
38AQI
38AQI
31AQI
39AQI
49AQI
39AQI
35AQI
23AQI
46AQI
35AQI
38AQI
45AQI
54AQI
58AQI
65AQI
57AQI
67AQI
68AQI
54AQI
53AQI
52AQI
42AQI
40AQI
41AQI
32AQI
34AQI
36AQI
41AQI
48AQI
40AQI
39AQI
53AQI
50AQI
56AQI
54AQI
43AQI
53AQI
28AQI
44AQI
46AQI
54AQI
48AQI
35AQI
39AQI
32AQI
31AQI
37AQI
49AQI
51AQI
50AQI
42AQI
48AQI
49AQI
47AQI
43AQI
48AQI
41AQI
39AQI
29AQI
34AQI
33AQI
34AQI
37AQI
34AQI
48AQI
52AQI
56AQI
51AQI
49AQI
42AQI
45AQI
55AQI
55AQI
32AQI
40AQI
43AQI
35AQI
31AQI
30AQI
35AQI
33AQI
31AQI
37AQI
37AQI
45AQI
46AQI
28AQI
44AQI
41AQI
53AQI
53AQI
53AQI
31AQI
28AQI
30AQI
41AQI
44AQI
32AQI
30AQI
29AQI
30AQI
37AQI
37AQI
45AQI
44AQI
33AQI
32AQI
32AQI
35AQI
39AQI
39AQI
41AQI
42AQI
46AQI
51AQI
61AQI
80AQI
82AQI
83AQI
69AQI
65AQI
67AQI
69AQI
62AQI
54AQI
53AQI
49AQI
47AQI
54AQI
53AQI
48AQI
46AQI
41AQI
36AQI
31AQI
30AQI
28AQI
26AQI
31AQI
31AQI
33AQI
28AQI
25AQI
22AQI
31AQI
42AQI
47AQI
48AQI
47AQI
46AQI
39AQI
36AQI
45AQI
43AQI
41AQI
39AQI
48AQI
46AQI
No. of days
202542AQI
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
February36AQI
202437AQI
Highest AQI recorded in
September48AQI
Lowest AQI recorded in
July27AQI
202339AQI
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
August32AQI
202239AQI
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
August17AQI
202136AQI
Highest AQI recorded in
May43AQI
Lowest AQI recorded in
July29AQI
202039AQI
Highest AQI recorded in
August55AQI
Lowest AQI recorded in
July27AQI
Most & Least Polluted Years Over the Last 6 Years
Onukimachi's annual 2025 AQI (42) shows an average percentage change of 10.06% (worsened AQI) compared to previous years: 2020 (39), 2021 (36), 2022 (39), 2023 (39), 2024 (37).