Iwashita, Kumamoto, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Iwashita, Kumamoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 23 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Iwashita, Kumamoto, Japan
80%
145
20%
36
Total number of days with different AQI categories in last 182 days in 2025 (183 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 182 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
Iwashita, Kumamoto, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
38AQI
35AQI
36AQI
34AQI
44AQI
30AQI
39AQI
29AQI
31AQI
30AQI
34AQI
44AQI
44AQI
49AQI
42AQI
48AQI
50AQI
56AQI
51AQI
73AQI
69AQI
70AQI
74AQI
52AQI
45AQI
39AQI
36AQI
32AQI
36AQI
43AQI
40AQI
32AQI
45AQI
31AQI
40AQI
31AQI
35AQI
29AQI
31AQI
30AQI
41AQI
38AQI
34AQI
39AQI
31AQI
35AQI
43AQI
32AQI
37AQI
34AQI
34AQI
42AQI
37AQI
39AQI
35AQI
36AQI
65AQI
49AQI
53AQI
42AQI
39AQI
29AQI
26AQI
31AQI
32AQI
42AQI
44AQI
48AQI
39AQI
45AQI
52AQI
44AQI
34AQI
29AQI
50AQI
40AQI
40AQI
49AQI
53AQI
60AQI
59AQI
46AQI
60AQI
60AQI
52AQI
58AQI
55AQI
44AQI
45AQI
43AQI
38AQI
39AQI
40AQI
45AQI
46AQI
41AQI
41AQI
54AQI
43AQI
57AQI
54AQI
50AQI
56AQI
35AQI
51AQI
45AQI
51AQI
53AQI
43AQI
47AQI
33AQI
29AQI
34AQI
46AQI
48AQI
52AQI
42AQI
50AQI
51AQI
48AQI
40AQI
44AQI
40AQI
44AQI
32AQI
38AQI
46AQI
31AQI
40AQI
43AQI
52AQI
55AQI
60AQI
57AQI
64AQI
36AQI
48AQI
52AQI
43AQI
32AQI
35AQI
46AQI
30AQI
32AQI
37AQI
43AQI
48AQI
39AQI
41AQI
39AQI
50AQI
46AQI
29AQI
43AQI
45AQI
53AQI
61AQI
59AQI
31AQI
29AQI
34AQI
34AQI
44AQI
27AQI
28AQI
28AQI
29AQI
34AQI
36AQI
38AQI
32AQI
18AQI
17AQI
24AQI
27AQI
25AQI
28AQI
32AQI
42AQI
44AQI
44AQI
37AQI
45AQI
45AQI
43AQI
36AQI
No. of days
202542AQI
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
June36AQI
202437AQI
Highest AQI recorded in
January65AQI
Lowest AQI recorded in
July24AQI
202337AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August27AQI
202240AQI
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
September35AQI
202137AQI
Highest AQI recorded in
May44AQI
Lowest AQI recorded in
August24AQI
202039AQI
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
July24AQI
Most & Least Polluted Years Over the Last 6 Years
Iwashita's annual 2025 AQI (42) shows an average percentage change of 9.4% (worsened AQI) compared to previous years: 2020 (39), 2021 (37), 2022 (40), 2023 (37), 2024 (37).
