Hinode, Honjo, Saitama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Hinode, Honjo, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (14th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 50 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Oct - 15th Oct 2025
Hinode, Honjo, Saitama, Japan
5 AM14th Oct 2025
5 PM
4 AM15th Oct 2025
AQI
AQI
67AQI
39AQI
In the last 24 hours,
Hinode's AQI reached its highest point of 67 at 8 PM during the Night, while the lowest point, 39, was recorded at 4 AM during the Night between 14th Oct and 15th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hinode, Honjo, Saitama, Japan
26°C23/31°C
27°C22/33°C
28°C23/34°C
27°C22/32°C
20°C18/22°C
20°C18/22°C
23°C19/27°C
20°C15/25°C
21°C19/25°C
21°C18/26°C
23°C17/28°C
26°C21/31°C
24°C20/28°C
23°C19/27°C
25°C21/32°C
22°C19/25°C
19°C18/19°C
21°C15/27°C
21°C18/25°C
20°C18/23°C
22°C18/26°C
23°C20/27°C
18°C17/20°C
22°C16/28°C
19°C17/19°C
19°C14/23°C
17°C15/18°C
20°C15/25°C
21°C19/23°C
--°C/°C
--°C/°C
43AQI
43AQI
46AQI
46AQI
2025 Days Vs Air Quality
Hinode, Honjo, Saitama, Japan
80%
229
20%
58
Total number of days with different AQI categories in last 287 days in 2025 (78 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 287 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
Hinode, Honjo, Saitama, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
28AQI
26AQI
27AQI
30AQI
47AQI
30AQI
35AQI
28AQI
27AQI
25AQI
33AQI
28AQI
31AQI
31AQI
28AQI
27AQI
30AQI
39AQI
37AQI
39AQI
35AQI
44AQI
44AQI
36AQI
36AQI
36AQI
40AQI
32AQI
33AQI
30AQI
39AQI
48AQI
45AQI
37AQI
36AQI
30AQI
31AQI
30AQI
30AQI
29AQI
30AQI
34AQI
32AQI
32AQI
31AQI
37AQI
36AQI
32AQI
31AQI
31AQI
33AQI
32AQI
33AQI
33AQI
35AQI
37AQI
44AQI
50AQI
52AQI
51AQI
41AQI
37AQI
26AQI
34AQI
32AQI
40AQI
36AQI
39AQI
47AQI
49AQI
53AQI
42AQI
41AQI
24AQI
23AQI
26AQI
19AQI
25AQI
36AQI
47AQI
56AQI
61AQI
74AQI
75AQI
73AQI
57AQI
35AQI
37AQI
31AQI
30AQI
21AQI
23AQI
19AQI
30AQI
27AQI
32AQI
41AQI
29AQI
47AQI
43AQI
45AQI
29AQI
28AQI
25AQI
26AQI
45AQI
55AQI
68AQI
65AQI
43AQI
55AQI
36AQI
44AQI
42AQI
51AQI
49AQI
56AQI
40AQI
49AQI
46AQI
33AQI
33AQI
36AQI
35AQI
31AQI
26AQI
33AQI
34AQI
23AQI
22AQI
24AQI
35AQI
45AQI
45AQI
51AQI
34AQI
44AQI
45AQI
56AQI
67AQI
59AQI
52AQI
48AQI
32AQI
33AQI
32AQI
30AQI
38AQI
29AQI
24AQI
21AQI
35AQI
35AQI
30AQI
37AQI
46AQI
52AQI
63AQI
58AQI
45AQI
34AQI
40AQI
49AQI
44AQI
30AQI
41AQI
48AQI
44AQI
46AQI
47AQI
44AQI
38AQI
38AQI
37AQI
34AQI
33AQI
37AQI
39AQI
46AQI
50AQI
53AQI
48AQI
53AQI
52AQI
53AQI
57AQI
75AQI
77AQI
77AQI
63AQI
48AQI
52AQI
53AQI
41AQI
38AQI
42AQI
39AQI
39AQI
38AQI
40AQI
45AQI
47AQI
51AQI
52AQI
53AQI
51AQI
48AQI
51AQI
48AQI
39AQI
41AQI
36AQI
43AQI
45AQI
57AQI
51AQI
48AQI
39AQI
37AQI
41AQI
42AQI
38AQI
35AQI
32AQI
33AQI
33AQI
35AQI
39AQI
41AQI
43AQI
47AQI
46AQI
47AQI
47AQI
54AQI
55AQI
54AQI
49AQI
46AQI
50AQI
52AQI
53AQI
43AQI
38AQI
36AQI
35AQI
30AQI
28AQI
30AQI
35AQI
37AQI
35AQI
30AQI
30AQI
26AQI
32AQI
34AQI
42AQI
45AQI
36AQI
31AQI
30AQI
24AQI
27AQI
30AQI
33AQI
44AQI
52AQI
42AQI
47AQI
33AQI
26AQI
36AQI
50AQI
55AQI
66AQI
53AQI
60AQI
55AQI
61AQI
59AQI
61AQI
56AQI
53AQI
60AQI
50AQI
33AQI
35AQI
43AQI
40AQI
38AQI
41AQI
50AQI
44AQI
35AQI
55AQI
No. of days
202541AQI
Highest AQI recorded in
October55AQI
Lowest AQI recorded in
January33AQI
202438AQI
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
December29AQI
202340AQI
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August31AQI
202239AQI
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
December27AQI
202137AQI
Highest AQI recorded in
March45AQI
Lowest AQI recorded in
December32AQI
202034AQI
Highest AQI recorded in
August49AQI
Lowest AQI recorded in
September24AQI
Most & Least Polluted Years Over the Last 6 Years
Hinode's annual 2025 AQI (41) shows an average percentage change of 8.4% (worsened AQI) compared to previous years: 2020 (34), 2021 (37), 2022 (39), 2023 (40), 2024 (38).