Tachikawa, 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
Tachikawa, Tokyo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (11th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 27 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 11th Aug - 12th Aug 2026
Tachikawa, Tokyo, Japan
4 AM11th Aug 2026
6 PM
3 AM12th Aug 2026
36AQI
25AQI
23AQI
21AQI
In the last 24 hours,
Tachikawa's AQI reached its highest point of 36 at 8 AM during the Day, while the lowest point, 21, was recorded at 11 PM during the Night between 11th Aug and 12th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Tachikawa, Tokyo, Japan
29°C24/33°C
30°C26/35°C
30°C27/35°C
28°C26/31°C
28°C25/31°C
28°C25/32°C
31°C27/36°C
32°C29/37°C
32°C28/37°C
32°C28/37°C
30°C27/34°C
29°C25/35°C
28°C25/31°C
27°C24/31°C
26°C23/30°C
28°C23/34°C
31°C26/35°C
30°C27/35°C
31°C27/35°C
30°C25/35°C
24°C23/26°C
25°C21/30°C
26°C22/31°C
29°C26/33°C
29°C26/33°C
29°C25/34°C
28°C25/32°C
27°C24/30°C
24°C22/28°C
23°C22/24°C
39AQI
32AQI
39AQI
31AQI
2026 Days Vs Air Quality
Tachikawa, Tokyo, Japan
84%
187
16%
36
Total number of days with different AQI categories in last 224 days in 2026 (141 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 224 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
Tachikawa, Tokyo, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
13AQI (US)
12AQI (US)
15AQI (US)
29AQI (US)
17AQI (US)
18AQI (US)
24AQI (US)
14AQI (US)
25AQI (US)
25AQI (US)
13AQI (US)
27AQI (US)
17AQI (US)
30AQI (US)
46AQI (US)
40AQI (US)
31AQI (US)
40AQI (US)
39AQI (US)
13AQI (US)
24AQI (US)
40AQI (US)
37AQI (US)
38AQI (US)
12AQI (US)
22AQI (US)
26AQI (US)
28AQI (US)
37AQI (US)
37AQI (US)
40AQI (US)
48AQI (US)
31AQI (US)
36AQI (US)
48AQI (US)
38AQI (US)
14AQI (US)
17AQI (US)
38AQI (US)
44AQI (US)
48AQI (US)
35AQI (US)
51AQI (US)
64AQI (US)
52AQI (US)
46AQI (US)
20AQI (US)
32AQI (US)
31AQI (US)
29AQI (US)
48AQI (US)
44AQI (US)
42AQI (US)
38AQI (US)
37AQI (US)
9AQI (US)
32AQI (US)
33AQI (US)
15AQI (US)
80AQI (US)
49AQI (US)
58AQI (US)
59AQI (US)
53AQI (US)
49AQI (US)
45AQI (US)
52AQI (US)
58AQI (US)
58AQI (US)
72AQI (US)
45AQI (US)
48AQI (US)
61AQI (US)
61AQI (US)
54AQI (US)
57AQI (US)
39AQI (US)
32AQI (US)
50AQI (US)
54AQI (US)
54AQI (US)
48AQI (US)
65AQI (US)
30AQI (US)
21AQI (US)
49AQI (US)
52AQI (US)
58AQI (US)
28AQI (US)
16AQI (US)
34AQI (US)
45AQI (US)
44AQI (US)
37AQI (US)
28AQI (US)
42AQI (US)
23AQI (US)
32AQI (US)
46AQI (US)
45AQI (US)
28AQI (US)
37AQI (US)
48AQI (US)
44AQI (US)
35AQI (US)
39AQI (US)
34AQI (US)
41AQI (US)
38AQI (US)
40AQI (US)
46AQI (US)
37AQI (US)
32AQI (US)
45AQI (US)
52AQI (US)
49AQI (US)
42AQI (US)
40AQI (US)
38AQI (US)
48AQI (US)
51AQI (US)
44AQI (US)
29AQI (US)
23AQI (US)
35AQI (US)
35AQI (US)
27AQI (US)
27AQI (US)
36AQI (US)
37AQI (US)
41AQI (US)
44AQI (US)
42AQI (US)
47AQI (US)
86AQI (US)
69AQI (US)
53AQI (US)
49AQI (US)
62AQI (US)
60AQI (US)
62AQI (US)
54AQI (US)
58AQI (US)
47AQI (US)
40AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
31AQI (US)
31AQI (US)
9AQI (US)
22AQI (US)
22AQI (US)
23AQI (US)
22AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
25AQI (US)
20AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
29AQI (US)
22AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
26AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
20AQI (US)
37AQI (US)
14AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
30AQI (US)
42AQI (US)
45AQI (US)
64AQI (US)
50AQI (US)
21AQI (US)
16AQI (US)
29AQI (US)
53AQI (US)
67AQI (US)
56AQI (US)
46AQI (US)
45AQI (US)
24AQI (US)
20AQI (US)
25AQI (US)
29AQI (US)
31AQI (US)
55AQI (US)
62AQI (US)
47AQI (US)
12AQI (US)
24AQI (US)
27AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
23AQI (US)
27AQI (US)
26AQI (US)
37AQI (US)
50AQI (US)
39AQI (US)
43AQI (US)
24AQI (US)
34AQI (US)
29AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March50AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
June20AQI (US)
202430AQI (US)
Highest AQI (US) recorded in
June40AQI (US)
Lowest AQI (US) recorded in
January23AQI (US)
202328AQI (US)
Highest AQI (US) recorded in
April39AQI (US)
Lowest AQI (US) recorded in
August17AQI (US)
202229AQI (US)
Highest AQI (US) recorded in
April41AQI (US)
Lowest AQI (US) recorded in
August12AQI (US)
202120AQI (US)
Highest AQI (US) recorded in
June31AQI (US)
Lowest AQI (US) recorded in
February11AQI (US)
202013AQI (US)
Highest AQI (US) recorded in
August23AQI (US)
Lowest AQI (US) recorded in
September9AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Tachikawa's annual 2026 AQI (US) (36) shows an average percentage change of 56.4% (worsened AQI (US)) compared to previous years: 2020 (13), 2021 (20), 2022 (29), 2023 (28), 2024 (30), 2025 (33).