Miyazaki, Noda, Chiba, 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
Miyazaki, Noda, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 51 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Miyazaki, Noda, Chiba, Japan
4 AM5th Aug 2025
6 PM
3 AM6th Aug 2025
67AQI
50AQI
50AQI
43AQI
In the last 24 hours,
Miyazaki's AQI reached its highest point of 67 at 12 PM during the Day, while the lowest point, 43, was recorded at 11 PM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Miyazaki, Noda, Chiba, Japan
31°C28/36°C
31°C28/36°C
31°C27/36°C
29°C23/36°C
23°C22/26°C
24°C21/28°C
27°C23/31°C
26°C24/29°C
27°C26/30°C
28°C26/30°C
29°C26/32°C
28°C26/33°C
29°C25/33°C
30°C27/34°C
31°C27/36°C
31°C27/36°C
31°C27/36°C
31°C27/37°C
32°C28/37°C
31°C28/37°C
31°C28/36°C
31°C28/38°C
32°C27/38°C
30°C26/36°C
29°C25/34°C
28°C26/32°C
31°C26/37°C
32°C27/37°C
32°C28/37°C
33°C29/39°C
--°C/°C
52AQI
45AQI
47AQI
39AQI
2025 Days Vs Air Quality
Miyazaki, Noda, Chiba, Japan
87%
189
13%
28
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 218 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
Miyazaki, Noda, Chiba, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
32AQI
26AQI
28AQI
38AQI
71AQI
36AQI
37AQI
32AQI
30AQI
29AQI
49AQI
32AQI
44AQI
40AQI
34AQI
33AQI
38AQI
58AQI
44AQI
53AQI
41AQI
56AQI
50AQI
44AQI
36AQI
38AQI
50AQI
33AQI
36AQI
28AQI
45AQI
44AQI
45AQI
36AQI
34AQI
28AQI
30AQI
30AQI
30AQI
31AQI
32AQI
47AQI
37AQI
38AQI
33AQI
42AQI
38AQI
34AQI
31AQI
31AQI
30AQI
32AQI
33AQI
33AQI
34AQI
40AQI
43AQI
56AQI
52AQI
63AQI
42AQI
44AQI
31AQI
36AQI
32AQI
42AQI
37AQI
38AQI
46AQI
58AQI
44AQI
39AQI
39AQI
31AQI
23AQI
24AQI
17AQI
26AQI
43AQI
53AQI
56AQI
52AQI
66AQI
71AQI
71AQI
48AQI
36AQI
35AQI
32AQI
32AQI
22AQI
25AQI
23AQI
26AQI
25AQI
33AQI
40AQI
23AQI
48AQI
40AQI
38AQI
28AQI
35AQI
28AQI
30AQI
47AQI
52AQI
65AQI
50AQI
44AQI
45AQI
31AQI
38AQI
46AQI
44AQI
53AQI
46AQI
33AQI
47AQI
40AQI
29AQI
31AQI
36AQI
32AQI
30AQI
23AQI
27AQI
31AQI
23AQI
21AQI
23AQI
33AQI
35AQI
38AQI
45AQI
26AQI
46AQI
35AQI
65AQI
51AQI
48AQI
39AQI
43AQI
31AQI
27AQI
24AQI
24AQI
30AQI
25AQI
17AQI
22AQI
29AQI
36AQI
25AQI
38AQI
46AQI
49AQI
62AQI
48AQI
39AQI
37AQI
39AQI
38AQI
34AQI
32AQI
36AQI
48AQI
44AQI
44AQI
41AQI
36AQI
25AQI
25AQI
25AQI
21AQI
21AQI
27AQI
27AQI
32AQI
34AQI
36AQI
46AQI
48AQI
47AQI
49AQI
65AQI
78AQI
79AQI
83AQI
62AQI
45AQI
49AQI
52AQI
39AQI
38AQI
37AQI
38AQI
34AQI
33AQI
34AQI
38AQI
39AQI
40AQI
42AQI
40AQI
42AQI
38AQI
42AQI
37AQI
33AQI
33AQI
32AQI
41AQI
44AQI
60AQI
51AQI
40AQI
36AQI
43AQI
38AQI
33AQI
35AQI
46AQI
46AQI
No. of days
202539AQI
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
May33AQI
202442AQI
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
August32AQI
202344AQI
Highest AQI recorded in
December52AQI
Lowest AQI recorded in
August26AQI
202243AQI
Highest AQI recorded in
November50AQI
Lowest AQI recorded in
August29AQI
202140AQI
Highest AQI recorded in
December49AQI
Lowest AQI recorded in
August32AQI
202041AQI
Highest AQI recorded in
November54AQI
Lowest AQI recorded in
September24AQI
Most & Least Polluted Years Over the Last 6 Years
Miyazaki's annual 2025 AQI (39) shows an average percentage change of -6.7% (improved AQI) compared to previous years: 2020 (41), 2021 (40), 2022 (43), 2023 (44), 2024 (42).