Kumagaya, 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
Kumagaya, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 27 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Kumagaya, Saitama, Japan
4 AM6th Aug 2026
6 PM
3 AM7th Aug 2026
29AQI
22AQI
29AQI
21AQI
In the last 24 hours,
Kumagaya's AQI reached its highest point of 29 at 6 PM during the Day, while the lowest point, 21, was recorded at 10 PM during the Night between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Kumagaya, Saitama, Japan
28°C23/33°C
29°C24/35°C
29°C25/34°C
27°C24/30°C
27°C26/30°C
30°C25/36°C
32°C27/38°C
31°C26/37°C
28°C26/31°C
27°C25/28°C
29°C25/34°C
32°C27/38°C
33°C29/39°C
33°C28/39°C
32°C28/38°C
29°C26/34°C
29°C25/36°C
28°C26/33°C
27°C24/32°C
26°C23/29°C
29°C23/36°C
31°C26/37°C
31°C26/36°C
32°C27/37°C
30°C24/37°C
24°C23/26°C
25°C22/31°C
27°C22/32°C
29°C26/34°C
30°C26/36°C
37AQI
31AQI
37AQI
32AQI
2026 Days Vs Air Quality
Kumagaya, Saitama, Japan
86%
188
14%
31
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 219 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
Kumagaya, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
18AQI (US)
18AQI (US)
24AQI (US)
29AQI (US)
18AQI (US)
28AQI (US)
32AQI (US)
19AQI (US)
32AQI (US)
35AQI (US)
13AQI (US)
25AQI (US)
16AQI (US)
32AQI (US)
44AQI (US)
41AQI (US)
26AQI (US)
47AQI (US)
33AQI (US)
12AQI (US)
25AQI (US)
36AQI (US)
37AQI (US)
43AQI (US)
26AQI (US)
35AQI (US)
27AQI (US)
25AQI (US)
35AQI (US)
37AQI (US)
33AQI (US)
40AQI (US)
28AQI (US)
40AQI (US)
50AQI (US)
41AQI (US)
14AQI (US)
14AQI (US)
33AQI (US)
36AQI (US)
45AQI (US)
28AQI (US)
43AQI (US)
59AQI (US)
64AQI (US)
40AQI (US)
20AQI (US)
34AQI (US)
31AQI (US)
34AQI (US)
49AQI (US)
43AQI (US)
44AQI (US)
45AQI (US)
43AQI (US)
10AQI (US)
29AQI (US)
44AQI (US)
36AQI (US)
79AQI (US)
45AQI (US)
61AQI (US)
60AQI (US)
54AQI (US)
48AQI (US)
45AQI (US)
51AQI (US)
59AQI (US)
61AQI (US)
68AQI (US)
40AQI (US)
35AQI (US)
14AQI (US)
29AQI (US)
57AQI (US)
59AQI (US)
40AQI (US)
34AQI (US)
52AQI (US)
57AQI (US)
57AQI (US)
53AQI (US)
64AQI (US)
27AQI (US)
21AQI (US)
44AQI (US)
59AQI (US)
57AQI (US)
36AQI (US)
19AQI (US)
23AQI (US)
47AQI (US)
58AQI (US)
32AQI (US)
23AQI (US)
47AQI (US)
26AQI (US)
35AQI (US)
50AQI (US)
40AQI (US)
30AQI (US)
32AQI (US)
41AQI (US)
41AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
34AQI (US)
37AQI (US)
40AQI (US)
47AQI (US)
36AQI (US)
32AQI (US)
46AQI (US)
51AQI (US)
49AQI (US)
42AQI (US)
40AQI (US)
40AQI (US)
49AQI (US)
51AQI (US)
46AQI (US)
30AQI (US)
21AQI (US)
30AQI (US)
31AQI (US)
28AQI (US)
26AQI (US)
29AQI (US)
29AQI (US)
37AQI (US)
39AQI (US)
34AQI (US)
46AQI (US)
85AQI (US)
69AQI (US)
53AQI (US)
49AQI (US)
62AQI (US)
60AQI (US)
61AQI (US)
54AQI (US)
58AQI (US)
48AQI (US)
40AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
33AQI (US)
36AQI (US)
33AQI (US)
16AQI (US)
19AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
35AQI (US)
20AQI (US)
21AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
22AQI (US)
19AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
26AQI (US)
29AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
21AQI (US)
16AQI (US)
42AQI (US)
24AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
31AQI (US)
32AQI (US)
34AQI (US)
42AQI (US)
36AQI (US)
45AQI (US)
40AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
49AQI (US)
63AQI (US)
50AQI (US)
35AQI (US)
30AQI (US)
27AQI (US)
27AQI (US)
31AQI (US)
31AQI (US)
29AQI (US)
40AQI (US)
39AQI (US)
40AQI (US)
25AQI (US)
30AQI (US)
30AQI (US)
23AQI (US)
27AQI (US)
29AQI (US)
37AQI (US)
48AQI (US)
38AQI (US)
42AQI (US)
24AQI (US)
33AQI (US)
31AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
October52AQI (US)
Lowest AQI (US) recorded in
September34AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202241AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
August33AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
September27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Kumagaya's annual 2026 AQI (US) (36) shows an average percentage change of -10.5% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (39), 2022 (41), 2023 (43), 2024 (39), 2025 (42).