Kudamatsu, Yamaguchi, 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
Kudamatsu, Yamaguchi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 31 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Kudamatsu, Yamaguchi, Japan
5 AM12th Aug 2026
7 PM
4 AM13th Aug 2026
32AQI
26AQI
32AQI
30AQI
In the last 24 hours,
Kudamatsu's AQI reached its highest point of 32 at 12 PM during the Day, while the lowest point, 26, was recorded at 8 AM during the Day between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Kudamatsu, Yamaguchi, Japan
26°C23/29°C
27°C23/32°C
25°C23/28°C
26°C23/29°C
26°C24/30°C
26°C24/29°C
27°C24/30°C
27°C23/32°C
27°C23/32°C
27°C23/32°C
27°C22/32°C
27°C22/33°C
28°C23/32°C
27°C23/33°C
26°C22/29°C
27°C23/32°C
26°C22/33°C
27°C23/33°C
28°C24/34°C
28°C25/33°C
27°C24/30°C
26°C24/30°C
27°C23/33°C
27°C23/32°C
27°C23/32°C
26°C23/30°C
26°C23/30°C
24°C19/29°C
24°C18/30°C
24°C22/28°C
39AQI
37AQI
38AQI
36AQI
2026 Days Vs Air Quality
Kudamatsu, Yamaguchi, Japan
83%
187
17%
38
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 225 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
Kudamatsu, Yamaguchi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI (US)
27AQI (US)
25AQI (US)
38AQI (US)
46AQI (US)
27AQI (US)
32AQI (US)
37AQI (US)
20AQI (US)
34AQI (US)
31AQI (US)
27AQI (US)
33AQI (US)
32AQI (US)
44AQI (US)
67AQI (US)
69AQI (US)
64AQI (US)
73AQI (US)
33AQI (US)
13AQI (US)
27AQI (US)
36AQI (US)
51AQI (US)
17AQI (US)
16AQI (US)
41AQI (US)
30AQI (US)
38AQI (US)
22AQI (US)
21AQI (US)
48AQI (US)
42AQI (US)
28AQI (US)
35AQI (US)
43AQI (US)
46AQI (US)
25AQI (US)
23AQI (US)
37AQI (US)
41AQI (US)
22AQI (US)
36AQI (US)
58AQI (US)
60AQI (US)
45AQI (US)
55AQI (US)
19AQI (US)
28AQI (US)
51AQI (US)
42AQI (US)
66AQI (US)
37AQI (US)
41AQI (US)
30AQI (US)
16AQI (US)
12AQI (US)
50AQI (US)
36AQI (US)
35AQI (US)
39AQI (US)
9AQI (US)
38AQI (US)
50AQI (US)
50AQI (US)
48AQI (US)
37AQI (US)
43AQI (US)
58AQI (US)
55AQI (US)
60AQI (US)
37AQI (US)
43AQI (US)
59AQI (US)
52AQI (US)
44AQI (US)
51AQI (US)
50AQI (US)
47AQI (US)
40AQI (US)
52AQI (US)
31AQI (US)
48AQI (US)
60AQI (US)
34AQI (US)
49AQI (US)
73AQI (US)
66AQI (US)
50AQI (US)
14AQI (US)
12AQI (US)
53AQI (US)
50AQI (US)
43AQI (US)
42AQI (US)
47AQI (US)
26AQI (US)
23AQI (US)
31AQI (US)
46AQI (US)
35AQI (US)
43AQI (US)
42AQI (US)
33AQI (US)
30AQI (US)
21AQI (US)
35AQI (US)
27AQI (US)
30AQI (US)
35AQI (US)
39AQI (US)
44AQI (US)
13AQI (US)
25AQI (US)
36AQI (US)
28AQI (US)
38AQI (US)
52AQI (US)
41AQI (US)
31AQI (US)
49AQI (US)
52AQI (US)
38AQI (US)
29AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
25AQI (US)
27AQI (US)
29AQI (US)
30AQI (US)
28AQI (US)
36AQI (US)
30AQI (US)
34AQI (US)
76AQI (US)
63AQI (US)
53AQI (US)
46AQI (US)
60AQI (US)
65AQI (US)
70AQI (US)
62AQI (US)
63AQI (US)
54AQI (US)
41AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
21AQI (US)
24AQI (US)
22AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
24AQI (US)
30AQI (US)
44AQI (US)
34AQI (US)
20AQI (US)
15AQI (US)
22AQI (US)
20AQI (US)
25AQI (US)
30AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
43AQI (US)
30AQI (US)
17AQI (US)
24AQI (US)
25AQI (US)
21AQI (US)
20AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
39AQI (US)
31AQI (US)
26AQI (US)
27AQI (US)
35AQI (US)
59AQI (US)
57AQI (US)
55AQI (US)
70AQI (US)
56AQI (US)
32AQI (US)
40AQI (US)
36AQI (US)
26AQI (US)
35AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
30AQI (US)
36AQI (US)
44AQI (US)
52AQI (US)
47AQI (US)
36AQI (US)
35AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
35AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
35AQI (US)
38AQI (US)
46AQI (US)
35AQI (US)
41AQI (US)
26AQI (US)
33AQI (US)
34AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
September31AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
April50AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
202341AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202242AQI (US)
Highest AQI (US) recorded in
May51AQI (US)
Lowest AQI (US) recorded in
December36AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
June50AQI (US)
Lowest AQI (US) recorded in
December36AQI (US)
202040AQI (US)
Highest AQI (US) recorded in
June49AQI (US)
Lowest AQI (US) recorded in
July35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Kudamatsu's annual 2026 AQI (US) (36) shows an average percentage change of -12.3% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (40), 2022 (42), 2023 (41), 2024 (39), 2025 (45).