Kamagaya, Chiba, 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
Kamagaya, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 35 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Kamagaya, Chiba, Japan
5 AM3rd Oct 2025
5 PM
4 AM4th Oct 2025
AQI
AQI
60AQI
35AQI
In the last 24 hours,
Kamagaya's AQI reached its highest point of 60 at 11 PM during the Night, while the lowest point, 35, was recorded at 11 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kamagaya, Chiba, Japan
26°C25/28°C
25°C24/26°C
27°C23/32°C
28°C25/31°C
29°C25/35°C
29°C26/33°C
28°C26/30°C
26°C23/30°C
25°C23/28°C
26°C23/29°C
29°C27/32°C
28°C25/32°C
29°C26/32°C
29°C26/33°C
29°C23/35°C
22°C21/23°C
25°C22/27°C
26°C21/31°C
23°C21/26°C
23°C19/26°C
23°C20/27°C
24°C21/27°C
27°C23/32°C
24°C22/27°C
25°C22/28°C
26°C23/31°C
24°C21/27°C
21°C19/21°C
23°C19/28°C
--°C/°C
--°C/°C
36AQI
36AQI
35AQI
32AQI
2025 Days Vs Air Quality
Kamagaya, Chiba, Japan
88%
242
12%
33
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 276 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
Kamagaya, Chiba, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI
34AQI
25AQI
32AQI
38AQI
58AQI
32AQI
36AQI
31AQI
30AQI
32AQI
42AQI
31AQI
44AQI
38AQI
38AQI
32AQI
38AQI
57AQI
45AQI
46AQI
45AQI
56AQI
49AQI
47AQI
38AQI
40AQI
40AQI
32AQI
34AQI
30AQI
44AQI
35AQI
48AQI
32AQI
35AQI
29AQI
29AQI
30AQI
30AQI
29AQI
32AQI
33AQI
39AQI
31AQI
39AQI
40AQI
38AQI
33AQI
31AQI
30AQI
31AQI
32AQI
33AQI
34AQI
35AQI
37AQI
39AQI
58AQI
48AQI
61AQI
38AQI
40AQI
24AQI
33AQI
31AQI
36AQI
34AQI
36AQI
42AQI
44AQI
41AQI
40AQI
38AQI
25AQI
22AQI
23AQI
18AQI
25AQI
40AQI
50AQI
54AQI
52AQI
65AQI
76AQI
71AQI
48AQI
40AQI
39AQI
35AQI
28AQI
23AQI
21AQI
21AQI
23AQI
23AQI
30AQI
37AQI
25AQI
46AQI
37AQI
39AQI
28AQI
39AQI
30AQI
31AQI
46AQI
51AQI
63AQI
51AQI
46AQI
45AQI
32AQI
42AQI
43AQI
48AQI
51AQI
44AQI
33AQI
44AQI
38AQI
29AQI
30AQI
36AQI
32AQI
28AQI
23AQI
27AQI
30AQI
23AQI
29AQI
25AQI
35AQI
34AQI
37AQI
42AQI
29AQI
45AQI
41AQI
64AQI
46AQI
44AQI
42AQI
40AQI
30AQI
28AQI
25AQI
23AQI
27AQI
26AQI
21AQI
22AQI
31AQI
32AQI
35AQI
40AQI
44AQI
48AQI
59AQI
44AQI
36AQI
31AQI
37AQI
41AQI
36AQI
38AQI
45AQI
52AQI
47AQI
44AQI
39AQI
34AQI
24AQI
24AQI
23AQI
20AQI
22AQI
28AQI
28AQI
33AQI
35AQI
34AQI
41AQI
40AQI
44AQI
48AQI
63AQI
71AQI
76AQI
75AQI
62AQI
56AQI
56AQI
53AQI
46AQI
44AQI
45AQI
45AQI
41AQI
32AQI
33AQI
34AQI
35AQI
39AQI
38AQI
34AQI
34AQI
30AQI
36AQI
32AQI
31AQI
31AQI
33AQI
40AQI
44AQI
60AQI
50AQI
51AQI
49AQI
45AQI
47AQI
38AQI
39AQI
35AQI
33AQI
33AQI
34AQI
36AQI
39AQI
42AQI
44AQI
47AQI
49AQI
49AQI
48AQI
55AQI
55AQI
53AQI
50AQI
45AQI
51AQI
55AQI
53AQI
42AQI
37AQI
37AQI
33AQI
28AQI
28AQI
29AQI
38AQI
42AQI
36AQI
31AQI
31AQI
28AQI
36AQI
37AQI
39AQI
48AQI
45AQI
38AQI
37AQI
30AQI
30AQI
29AQI
29AQI
31AQI
42AQI
36AQI
32AQI
30AQI
24AQI
31AQI
35AQI
39AQI
35AQI
41AQI
37AQI
33AQI
36AQI
44AQI
45AQI
34AQI
33AQI
No. of days
202538AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
October33AQI
202439AQI
Highest AQI recorded in
July51AQI
Lowest AQI recorded in
September33AQI
202340AQI
Highest AQI recorded in
December47AQI
Lowest AQI recorded in
August24AQI
202240AQI
Highest AQI recorded in
March44AQI
Lowest AQI recorded in
August26AQI
202139AQI
Highest AQI recorded in
January51AQI
Lowest AQI recorded in
August31AQI
202039AQI
Highest AQI recorded in
December53AQI
Lowest AQI recorded in
September26AQI
Most & Least Polluted Years Over the Last 6 Years
Kamagaya's annual 2025 AQI (38) shows an average percentage change of -1.9% (improved AQI) compared to previous years: 2020 (39), 2021 (39), 2022 (40), 2023 (40), 2024 (39).