Hachioji, Tokyo, 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
Hachioji, Tokyo, 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 54 of Moderate air quality on the same day.
Day & Night AQI Trend: 1st Aug - 2nd Aug 2026
Hachioji, Tokyo, Japan
4 AM1st Aug 2026
6 PM
3 AM2nd Aug 2026
79AQI
62AQI
90AQI
48AQI
In the last 24 hours,
Hachioji's AQI reached its highest point of 90 at 9 PM during the Night, while the lowest point, 48, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Hachioji, Tokyo, Japan
22°C20/25°C
23°C21/26°C
21°C20/22°C
23°C19/28°C
24°C20/28°C
25°C21/30°C
26°C22/31°C
27°C23/31°C
25°C24/29°C
25°C24/27°C
28°C23/32°C
29°C25/34°C
29°C26/35°C
27°C25/30°C
27°C24/30°C
27°C24/31°C
30°C25/35°C
31°C27/36°C
30°C26/36°C
31°C27/36°C
29°C26/32°C
29°C25/34°C
27°C24/30°C
26°C23/30°C
25°C23/29°C
27°C22/34°C
29°C24/35°C
29°C25/34°C
30°C25/35°C
29°C24/35°C
41AQI
41AQI
44AQI
36AQI
2026 Days Vs Air Quality
Hachioji, Tokyo, Japan
80%
171
20%
43
Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% 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
Hachioji, Tokyo, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
18AQI (US)
15AQI (US)
18AQI (US)
30AQI (US)
23AQI (US)
27AQI (US)
26AQI (US)
22AQI (US)
26AQI (US)
21AQI (US)
16AQI (US)
26AQI (US)
18AQI (US)
43AQI (US)
49AQI (US)
48AQI (US)
38AQI (US)
37AQI (US)
40AQI (US)
19AQI (US)
31AQI (US)
52AQI (US)
51AQI (US)
42AQI (US)
27AQI (US)
42AQI (US)
27AQI (US)
26AQI (US)
35AQI (US)
35AQI (US)
43AQI (US)
56AQI (US)
30AQI (US)
45AQI (US)
51AQI (US)
43AQI (US)
16AQI (US)
20AQI (US)
40AQI (US)
46AQI (US)
50AQI (US)
36AQI (US)
51AQI (US)
63AQI (US)
54AQI (US)
47AQI (US)
18AQI (US)
34AQI (US)
31AQI (US)
28AQI (US)
48AQI (US)
44AQI (US)
42AQI (US)
37AQI (US)
34AQI (US)
10AQI (US)
30AQI (US)
49AQI (US)
49AQI (US)
82AQI (US)
49AQI (US)
45AQI (US)
58AQI (US)
53AQI (US)
50AQI (US)
43AQI (US)
51AQI (US)
59AQI (US)
58AQI (US)
73AQI (US)
45AQI (US)
37AQI (US)
15AQI (US)
31AQI (US)
54AQI (US)
57AQI (US)
39AQI (US)
29AQI (US)
51AQI (US)
53AQI (US)
54AQI (US)
48AQI (US)
65AQI (US)
22AQI (US)
19AQI (US)
51AQI (US)
54AQI (US)
56AQI (US)
26AQI (US)
20AQI (US)
35AQI (US)
45AQI (US)
45AQI (US)
37AQI (US)
28AQI (US)
39AQI (US)
22AQI (US)
32AQI (US)
46AQI (US)
37AQI (US)
35AQI (US)
38AQI (US)
48AQI (US)
44AQI (US)
36AQI (US)
40AQI (US)
35AQI (US)
40AQI (US)
39AQI (US)
40AQI (US)
45AQI (US)
37AQI (US)
32AQI (US)
46AQI (US)
52AQI (US)
49AQI (US)
42AQI (US)
41AQI (US)
38AQI (US)
48AQI (US)
50AQI (US)
44AQI (US)
28AQI (US)
24AQI (US)
34AQI (US)
36AQI (US)
28AQI (US)
28AQI (US)
35AQI (US)
37AQI (US)
41AQI (US)
45AQI (US)
42AQI (US)
45AQI (US)
86AQI (US)
69AQI (US)
54AQI (US)
49AQI (US)
62AQI (US)
59AQI (US)
61AQI (US)
54AQI (US)
59AQI (US)
47AQI (US)
39AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
31AQI (US)
34AQI (US)
22AQI (US)
23AQI (US)
22AQI (US)
23AQI (US)
22AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
26AQI (US)
17AQI (US)
19AQI (US)
24AQI (US)
25AQI (US)
30AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
39AQI (US)
57AQI (US)
18AQI (US)
17AQI (US)
46AQI (US)
15AQI (US)
30AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
29AQI (US)
29AQI (US)
43AQI (US)
77AQI (US)
62AQI (US)
26AQI (US)
18AQI (US)
33AQI (US)
62AQI (US)
77AQI (US)
74AQI (US)
56AQI (US)
56AQI (US)
25AQI (US)
26AQI (US)
34AQI (US)
29AQI (US)
33AQI (US)
65AQI (US)
72AQI (US)
54AQI (US)
31AQI (US)
39AQI (US)
48AQI (US)
39AQI (US)
43AQI (US)
25AQI (US)
38AQI (US)
63AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
August63AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
July48AQI (US)
Lowest AQI (US) recorded in
April20AQI (US)
202429AQI (US)
Highest AQI (US) recorded in
June37AQI (US)
Lowest AQI (US) recorded in
January22AQI (US)
202329AQI (US)
Highest AQI (US) recorded in
April38AQI (US)
Lowest AQI (US) recorded in
December23AQI (US)
202229AQI (US)
Highest AQI (US) recorded in
April39AQI (US)
Lowest AQI (US) recorded in
January20AQI (US)
202120AQI (US)
Highest AQI (US) recorded in
June33AQI (US)
Lowest AQI (US) recorded in
January10AQI (US)
202015AQI (US)
Highest AQI (US) recorded in
August25AQI (US)
Lowest AQI (US) recorded in
April10AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Hachioji's annual 2026 AQI (US) (38) shows an average percentage change of 57.5% (worsened AQI (US)) compared to previous years: 2020 (15), 2021 (20), 2022 (29), 2023 (29), 2024 (29), 2025 (35).