Nishitokyo, Honcho, 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
Nishitokyo, Honcho, Tokyo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Nishitokyo, Honcho, Tokyo, Japan
4 AM8th Aug 2026
6 PM
3 AM9th Aug 2026
29AQI
21AQI
30AQI
21AQI
In the last 24 hours,
Nishitokyo's AQI reached its highest point of 30 at 3 AM during the Night, while the lowest point, 21, was recorded at 2 AM during the Night between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Nishitokyo, Honcho, Tokyo, Japan
28°C25/32°C
27°C25/29°C
27°C26/29°C
29°C26/33°C
31°C27/35°C
31°C28/36°C
29°C27/31°C
28°C26/32°C
29°C26/32°C
32°C28/37°C
33°C30/38°C
33°C29/37°C
33°C29/38°C
30°C28/35°C
30°C26/36°C
29°C26/33°C
27°C24/31°C
27°C24/31°C
30°C24/36°C
32°C28/36°C
31°C28/36°C
32°C28/36°C
31°C25/36°C
25°C24/27°C
26°C22/31°C
27°C23/31°C
29°C26/34°C
30°C27/34°C
30°C27/34°C
30°C27/33°C
39AQI
30AQI
38AQI
33AQI
2026 Days Vs Air Quality
Nishitokyo, Honcho, Tokyo, Japan
84%
185
16%
36
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 221 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
Nishitokyo, Honcho, Tokyo, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI (US)
22AQI (US)
21AQI (US)
27AQI (US)
40AQI (US)
15AQI (US)
26AQI (US)
30AQI (US)
21AQI (US)
34AQI (US)
33AQI (US)
20AQI (US)
29AQI (US)
16AQI (US)
28AQI (US)
51AQI (US)
51AQI (US)
35AQI (US)
43AQI (US)
40AQI (US)
13AQI (US)
24AQI (US)
38AQI (US)
39AQI (US)
44AQI (US)
30AQI (US)
40AQI (US)
11AQI (US)
17AQI (US)
34AQI (US)
36AQI (US)
40AQI (US)
46AQI (US)
31AQI (US)
39AQI (US)
50AQI (US)
48AQI (US)
11AQI (US)
14AQI (US)
33AQI (US)
37AQI (US)
54AQI (US)
29AQI (US)
46AQI (US)
63AQI (US)
54AQI (US)
42AQI (US)
18AQI (US)
33AQI (US)
30AQI (US)
22AQI (US)
47AQI (US)
43AQI (US)
35AQI (US)
29AQI (US)
35AQI (US)
11AQI (US)
37AQI (US)
47AQI (US)
41AQI (US)
81AQI (US)
45AQI (US)
61AQI (US)
57AQI (US)
53AQI (US)
40AQI (US)
17AQI (US)
31AQI (US)
57AQI (US)
58AQI (US)
69AQI (US)
43AQI (US)
47AQI (US)
60AQI (US)
56AQI (US)
54AQI (US)
56AQI (US)
33AQI (US)
28AQI (US)
51AQI (US)
50AQI (US)
54AQI (US)
54AQI (US)
59AQI (US)
31AQI (US)
22AQI (US)
48AQI (US)
53AQI (US)
56AQI (US)
24AQI (US)
24AQI (US)
37AQI (US)
42AQI (US)
44AQI (US)
37AQI (US)
27AQI (US)
36AQI (US)
20AQI (US)
30AQI (US)
46AQI (US)
41AQI (US)
26AQI (US)
36AQI (US)
39AQI (US)
40AQI (US)
35AQI (US)
39AQI (US)
34AQI (US)
40AQI (US)
37AQI (US)
39AQI (US)
46AQI (US)
36AQI (US)
32AQI (US)
45AQI (US)
51AQI (US)
48AQI (US)
42AQI (US)
39AQI (US)
38AQI (US)
47AQI (US)
52AQI (US)
44AQI (US)
28AQI (US)
21AQI (US)
31AQI (US)
33AQI (US)
26AQI (US)
25AQI (US)
28AQI (US)
31AQI (US)
39AQI (US)
48AQI (US)
35AQI (US)
37AQI (US)
85AQI (US)
69AQI (US)
53AQI (US)
49AQI (US)
62AQI (US)
59AQI (US)
61AQI (US)
53AQI (US)
59AQI (US)
47AQI (US)
39AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
32AQI (US)
33AQI (US)
27AQI (US)
23AQI (US)
22AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
25AQI (US)
36AQI (US)
32AQI (US)
17AQI (US)
26AQI (US)
24AQI (US)
24AQI (US)
30AQI (US)
23AQI (US)
18AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
27AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
25AQI (US)
22AQI (US)
16AQI (US)
32AQI (US)
17AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
29AQI (US)
29AQI (US)
49AQI (US)
46AQI (US)
25AQI (US)
21AQI (US)
31AQI (US)
49AQI (US)
65AQI (US)
59AQI (US)
47AQI (US)
41AQI (US)
23AQI (US)
23AQI (US)
26AQI (US)
33AQI (US)
34AQI (US)
54AQI (US)
60AQI (US)
46AQI (US)
17AQI (US)
27AQI (US)
28AQI (US)
22AQI (US)
23AQI (US)
22AQI (US)
26AQI (US)
30AQI (US)
37AQI (US)
48AQI (US)
38AQI (US)
41AQI (US)
25AQI (US)
32AQI (US)
30AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202534AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202434AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
December25AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
February45AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202232AQI (US)
Highest AQI (US) recorded in
June46AQI (US)
Lowest AQI (US) recorded in
August19AQI (US)
202123AQI (US)
Highest AQI (US) recorded in
August27AQI (US)
Lowest AQI (US) recorded in
December20AQI (US)
202017AQI (US)
Highest AQI (US) recorded in
August27AQI (US)
Lowest AQI (US) recorded in
September12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Nishitokyo's annual 2026 AQI (US) (36) shows an average percentage change of 31.2% (worsened AQI (US)) compared to previous years: 2020 (17), 2021 (23), 2022 (32), 2023 (38), 2024 (34), 2025 (34).