Hasuda, Saitama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Hasuda, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (30th September):
On this day, AQI across the 4 years varied significantly: 2026 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2025, 2023 and 2022 on the same day.
Day & Night AQI Trend: 29th Sep - 30th Sep 2026
Hasuda, Saitama, Japan
5 AM29th Sep 2026
5 PM
4 AM30th Sep 2026
31AQI
21AQI
25AQI
21AQI
In the last 24 hours,
Hasuda's AQI reached its highest point of 31 at 6 AM during the Day, while the lowest point, 21, was recorded at 4 AM during the Night between 29th Sep and 30th Sep 2026.
Day & Night AQI Trend : Sep 2026
Hasuda, Saitama, Japan
26°C24/29°C
29°C25/34°C
28°C24/32°C
25°C22/28°C
23°C21/26°C
23°C21/25°C
22°C21/24°C
25°C23/28°C
26°C21/33°C
21°C19/21°C
20°C19/21°C
23°C20/26°C
25°C22/28°C
28°C23/34°C
24°C22/26°C
21°C20/22°C
21°C20/24°C
22°C19/25°C
24°C21/27°C
22°C21/24°C
22°C21/25°C
27°C25/29°C
22°C20/24°C
25°C20/30°C
24°C22/27°C
19°C17/22°C
21°C18/24°C
22°C21/24°C
19°C18/22°C
19°C18/20°C
26AQI
23AQI
27AQI
24AQI
2026 Days Vs Air Quality
Hasuda, Saitama, Japan
89%
244
11%
29
Total number of days with different AQI categories in last 273 days in 2026 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2026, 89% of 273 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
Hasuda, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI (US)
18AQI (US)
22AQI (US)
25AQI (US)
44AQI (US)
29AQI (US)
35AQI (US)
39AQI (US)
18AQI (US)
37AQI (US)
30AQI (US)
17AQI (US)
36AQI (US)
15AQI (US)
30AQI (US)
53AQI (US)
44AQI (US)
26AQI (US)
48AQI (US)
48AQI (US)
13AQI (US)
19AQI (US)
23AQI (US)
31AQI (US)
47AQI (US)
15AQI (US)
19AQI (US)
20AQI (US)
20AQI (US)
39AQI (US)
20AQI (US)
22AQI (US)
25AQI (US)
28AQI (US)
42AQI (US)
63AQI (US)
53AQI (US)
15AQI (US)
14AQI (US)
34AQI (US)
42AQI (US)
53AQI (US)
26AQI (US)
45AQI (US)
58AQI (US)
74AQI (US)
49AQI (US)
22AQI (US)
40AQI (US)
34AQI (US)
26AQI (US)
37AQI (US)
44AQI (US)
43AQI (US)
45AQI (US)
37AQI (US)
12AQI (US)
31AQI (US)
40AQI (US)
37AQI (US)
62AQI (US)
43AQI (US)
50AQI (US)
56AQI (US)
51AQI (US)
45AQI (US)
36AQI (US)
47AQI (US)
57AQI (US)
58AQI (US)
64AQI (US)
37AQI (US)
29AQI (US)
13AQI (US)
30AQI (US)
50AQI (US)
53AQI (US)
44AQI (US)
35AQI (US)
57AQI (US)
54AQI (US)
50AQI (US)
46AQI (US)
66AQI (US)
31AQI (US)
25AQI (US)
49AQI (US)
55AQI (US)
55AQI (US)
24AQI (US)
20AQI (US)
25AQI (US)
47AQI (US)
47AQI (US)
38AQI (US)
25AQI (US)
41AQI (US)
26AQI (US)
32AQI (US)
48AQI (US)
39AQI (US)
31AQI (US)
35AQI (US)
40AQI (US)
39AQI (US)
34AQI (US)
36AQI (US)
32AQI (US)
33AQI (US)
34AQI (US)
41AQI (US)
33AQI (US)
13AQI (US)
32AQI (US)
46AQI (US)
52AQI (US)
49AQI (US)
42AQI (US)
40AQI (US)
38AQI (US)
48AQI (US)
50AQI (US)
45AQI (US)
29AQI (US)
22AQI (US)
30AQI (US)
30AQI (US)
26AQI (US)
30AQI (US)
24AQI (US)
24AQI (US)
36AQI (US)
37AQI (US)
33AQI (US)
35AQI (US)
85AQI (US)
68AQI (US)
53AQI (US)
48AQI (US)
61AQI (US)
59AQI (US)
60AQI (US)
54AQI (US)
58AQI (US)
48AQI (US)
40AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
28AQI (US)
32AQI (US)
29AQI (US)
29AQI (US)
26AQI (US)
23AQI (US)
21AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
23AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
50AQI (US)
17AQI (US)
19AQI (US)
23AQI (US)
25AQI (US)
27AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
27AQI (US)
30AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
24AQI (US)
26AQI (US)
17AQI (US)
16AQI (US)
41AQI (US)
25AQI (US)
32AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
29AQI (US)
42AQI (US)
44AQI (US)
27AQI (US)
20AQI (US)
30AQI (US)
43AQI (US)
60AQI (US)
51AQI (US)
36AQI (US)
28AQI (US)
27AQI (US)
24AQI (US)
31AQI (US)
34AQI (US)
32AQI (US)
43AQI (US)
43AQI (US)
41AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
22AQI (US)
30AQI (US)
24AQI (US)
24AQI (US)
16AQI (US)
23AQI (US)
26AQI (US)
23AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
26AQI (US)
30AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
37AQI (US)
25AQI (US)
28AQI (US)
44AQI (US)
38AQI (US)
33AQI (US)
28AQI (US)
45AQI (US)
36AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
16AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
19AQI (US)
21AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
9AQI (US)
23AQI (US)
27AQI (US)
24AQI (US)
32AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
22AQI (US)
29AQI (US)
38AQI (US)
45AQI (US)
36AQI (US)
41AQI (US)
25AQI (US)
31AQI (US)
29AQI (US)
25AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
202543AQI (US)
Highest AQI (US) recorded in
October51AQI (US)
Lowest AQI (US) recorded in
September36AQI (US)
202347AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202244AQI (US)
Highest AQI (US) recorded in
November50AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202142AQI (US)
Highest AQI (US) recorded in
January46AQI (US)
Lowest AQI (US) recorded in
August36AQI (US)
202040AQI (US)
Highest AQI (US) recorded in
November51AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Hasuda's annual 2026 AQI (US) (33) shows an average percentage change of -23.3% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (42), 2022 (44), 2023 (47), 2025 (43).