Kawaguchi, Saitama, 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
Kawaguchi, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 51 of Moderate air quality on the same day.
Day & Night AQI Trend: 1st Aug - 2nd Aug 2026
Kawaguchi, Saitama, Japan
4 AM1st Aug 2026
6 PM
3 AM2nd Aug 2026
65AQI
54AQI
70AQI
57AQI
In the last 24 hours,
Kawaguchi's AQI reached its highest point of 70 at 2 AM during the Night, while the lowest point, 54, was recorded at 10 AM during the Day between 1st Aug and 2nd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Kawaguchi, Saitama, Japan
24°C22/26°C
24°C22/27°C
23°C22/24°C
25°C21/30°C
26°C22/31°C
27°C24/31°C
28°C24/32°C
27°C25/31°C
26°C25/29°C
28°C26/30°C
29°C25/33°C
30°C27/34°C
30°C27/36°C
29°C27/32°C
28°C26/31°C
28°C25/32°C
31°C27/36°C
32°C28/36°C
32°C28/36°C
32°C29/38°C
30°C27/34°C
29°C25/35°C
28°C25/32°C
27°C24/30°C
27°C24/31°C
30°C25/36°C
32°C28/36°C
31°C29/36°C
32°C27/37°C
30°C25/35°C
42AQI
32AQI
40AQI
31AQI
2026 Days Vs Air Quality
Kawaguchi, Saitama, Japan
81%
174
19%
40
Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2026, 81% of 214 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
Kawaguchi, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
16AQI (US)
17AQI (US)
24AQI (US)
47AQI (US)
14AQI (US)
33AQI (US)
40AQI (US)
18AQI (US)
38AQI (US)
33AQI (US)
18AQI (US)
39AQI (US)
17AQI (US)
36AQI (US)
53AQI (US)
51AQI (US)
26AQI (US)
48AQI (US)
45AQI (US)
14AQI (US)
23AQI (US)
39AQI (US)
42AQI (US)
44AQI (US)
26AQI (US)
41AQI (US)
16AQI (US)
22AQI (US)
36AQI (US)
37AQI (US)
40AQI (US)
46AQI (US)
28AQI (US)
41AQI (US)
66AQI (US)
60AQI (US)
14AQI (US)
15AQI (US)
34AQI (US)
40AQI (US)
53AQI (US)
27AQI (US)
46AQI (US)
63AQI (US)
70AQI (US)
47AQI (US)
20AQI (US)
39AQI (US)
22AQI (US)
28AQI (US)
46AQI (US)
44AQI (US)
43AQI (US)
45AQI (US)
36AQI (US)
13AQI (US)
33AQI (US)
43AQI (US)
36AQI (US)
68AQI (US)
46AQI (US)
52AQI (US)
52AQI (US)
50AQI (US)
45AQI (US)
38AQI (US)
47AQI (US)
58AQI (US)
58AQI (US)
66AQI (US)
39AQI (US)
46AQI (US)
57AQI (US)
53AQI (US)
51AQI (US)
53AQI (US)
35AQI (US)
31AQI (US)
56AQI (US)
59AQI (US)
50AQI (US)
51AQI (US)
60AQI (US)
32AQI (US)
26AQI (US)
46AQI (US)
54AQI (US)
54AQI (US)
22AQI (US)
23AQI (US)
34AQI (US)
45AQI (US)
46AQI (US)
38AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
31AQI (US)
46AQI (US)
51AQI (US)
34AQI (US)
39AQI (US)
40AQI (US)
39AQI (US)
30AQI (US)
35AQI (US)
31AQI (US)
33AQI (US)
35AQI (US)
38AQI (US)
46AQI (US)
37AQI (US)
32AQI (US)
46AQI (US)
51AQI (US)
49AQI (US)
42AQI (US)
39AQI (US)
38AQI (US)
48AQI (US)
50AQI (US)
51AQI (US)
29AQI (US)
22AQI (US)
30AQI (US)
30AQI (US)
25AQI (US)
26AQI (US)
30AQI (US)
28AQI (US)
34AQI (US)
38AQI (US)
34AQI (US)
36AQI (US)
85AQI (US)
68AQI (US)
53AQI (US)
49AQI (US)
61AQI (US)
59AQI (US)
61AQI (US)
53AQI (US)
58AQI (US)
47AQI (US)
39AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
26AQI (US)
17AQI (US)
23AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
36AQI (US)
45AQI (US)
15AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
19AQI (US)
17AQI (US)
39AQI (US)
22AQI (US)
27AQI (US)
26AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
31AQI (US)
31AQI (US)
33AQI (US)
59AQI (US)
46AQI (US)
26AQI (US)
21AQI (US)
42AQI (US)
52AQI (US)
68AQI (US)
62AQI (US)
42AQI (US)
31AQI (US)
26AQI (US)
25AQI (US)
34AQI (US)
36AQI (US)
38AQI (US)
47AQI (US)
58AQI (US)
51AQI (US)
31AQI (US)
39AQI (US)
48AQI (US)
38AQI (US)
41AQI (US)
25AQI (US)
34AQI (US)
55AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
August55AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
December51AQI (US)
Lowest AQI (US) recorded in
May26AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August25AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
June44AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202129AQI (US)
Highest AQI (US) recorded in
June35AQI (US)
Lowest AQI (US) recorded in
February19AQI (US)
202024AQI (US)
Highest AQI (US) recorded in
August29AQI (US)
Lowest AQI (US) recorded in
September18AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Kawaguchi's annual 2026 AQI (US) (37) shows an average percentage change of 12.7% (worsened AQI (US)) compared to previous years: 2020 (24), 2021 (29), 2022 (37), 2023 (37), 2024 (37), 2025 (39).