Katahira, Tama, 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
Katahira, Tama, Tokyo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Katahira, Tama, Tokyo, Japan
4 AM12th Aug 2026
6 PM
3 AM13th Aug 2026
29AQI
23AQI
31AQI
21AQI
In the last 24 hours,
Katahira's AQI reached its highest point of 31 at 7 PM during the Night, while the lowest point, 21, was recorded at 1 AM during the Night between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Katahira, Tama, Tokyo, Japan
29°C26/34°C
30°C27/35°C
28°C26/30°C
28°C25/31°C
28°C25/31°C
31°C27/35°C
32°C28/36°C
32°C29/36°C
32°C29/37°C
30°C27/33°C
30°C26/35°C
28°C25/31°C
27°C24/30°C
26°C24/30°C
29°C24/34°C
31°C27/35°C
31°C28/35°C
31°C27/35°C
30°C25/35°C
25°C24/27°C
25°C22/30°C
26°C23/31°C
29°C26/33°C
29°C26/33°C
29°C26/33°C
29°C25/32°C
27°C24/30°C
24°C22/28°C
23°C22/25°C
26°C23/30°C
40AQI
30AQI
40AQI
31AQI
2026 Days Vs Air Quality
Katahira, Tama, Tokyo, Japan
87%
195
13%
30
Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 226 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
Katahira, Tama, Tokyo, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
15AQI (US)
12AQI (US)
22AQI (US)
35AQI (US)
16AQI (US)
21AQI (US)
30AQI (US)
15AQI (US)
32AQI (US)
28AQI (US)
16AQI (US)
29AQI (US)
17AQI (US)
33AQI (US)
47AQI (US)
48AQI (US)
32AQI (US)
39AQI (US)
39AQI (US)
15AQI (US)
21AQI (US)
35AQI (US)
33AQI (US)
45AQI (US)
20AQI (US)
35AQI (US)
12AQI (US)
20AQI (US)
35AQI (US)
36AQI (US)
33AQI (US)
45AQI (US)
30AQI (US)
40AQI (US)
55AQI (US)
47AQI (US)
14AQI (US)
17AQI (US)
34AQI (US)
37AQI (US)
44AQI (US)
33AQI (US)
46AQI (US)
54AQI (US)
51AQI (US)
45AQI (US)
20AQI (US)
26AQI (US)
30AQI (US)
32AQI (US)
30AQI (US)
42AQI (US)
20AQI (US)
41AQI (US)
37AQI (US)
12AQI (US)
32AQI (US)
38AQI (US)
20AQI (US)
81AQI (US)
43AQI (US)
47AQI (US)
54AQI (US)
52AQI (US)
40AQI (US)
41AQI (US)
49AQI (US)
57AQI (US)
57AQI (US)
66AQI (US)
40AQI (US)
46AQI (US)
58AQI (US)
56AQI (US)
52AQI (US)
54AQI (US)
37AQI (US)
29AQI (US)
47AQI (US)
49AQI (US)
48AQI (US)
47AQI (US)
66AQI (US)
31AQI (US)
21AQI (US)
46AQI (US)
51AQI (US)
57AQI (US)
23AQI (US)
21AQI (US)
34AQI (US)
45AQI (US)
45AQI (US)
36AQI (US)
28AQI (US)
25AQI (US)
22AQI (US)
31AQI (US)
46AQI (US)
38AQI (US)
31AQI (US)
33AQI (US)
40AQI (US)
36AQI (US)
33AQI (US)
36AQI (US)
28AQI (US)
32AQI (US)
38AQI (US)
40AQI (US)
46AQI (US)
37AQI (US)
32AQI (US)
45AQI (US)
51AQI (US)
49AQI (US)
41AQI (US)
39AQI (US)
39AQI (US)
48AQI (US)
49AQI (US)
43AQI (US)
28AQI (US)
20AQI (US)
27AQI (US)
30AQI (US)
25AQI (US)
24AQI (US)
29AQI (US)
28AQI (US)
31AQI (US)
38AQI (US)
35AQI (US)
35AQI (US)
85AQI (US)
68AQI (US)
53AQI (US)
49AQI (US)
61AQI (US)
58AQI (US)
60AQI (US)
54AQI (US)
58AQI (US)
46AQI (US)
39AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
31AQI (US)
22AQI (US)
13AQI (US)
23AQI (US)
21AQI (US)
21AQI (US)
23AQI (US)
16AQI (US)
13AQI (US)
22AQI (US)
23AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
14AQI (US)
22AQI (US)
23AQI (US)
24AQI (US)
28AQI (US)
22AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
21AQI (US)
26AQI (US)
29AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
30AQI (US)
33AQI (US)
19AQI (US)
17AQI (US)
32AQI (US)
14AQI (US)
24AQI (US)
25AQI (US)
23AQI (US)
23AQI (US)
24AQI (US)
22AQI (US)
27AQI (US)
34AQI (US)
32AQI (US)
36AQI (US)
64AQI (US)
49AQI (US)
21AQI (US)
14AQI (US)
29AQI (US)
46AQI (US)
62AQI (US)
57AQI (US)
47AQI (US)
50AQI (US)
22AQI (US)
17AQI (US)
23AQI (US)
30AQI (US)
32AQI (US)
53AQI (US)
60AQI (US)
50AQI (US)
15AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
28AQI (US)
25AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
28AQI (US)
35AQI (US)
47AQI (US)
37AQI (US)
40AQI (US)
23AQI (US)
32AQI (US)
29AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202534AQI (US)
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
June22AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
April45AQI (US)
Lowest AQI (US) recorded in
August25AQI (US)
202234AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202127AQI (US)
Highest AQI (US) recorded in
December40AQI (US)
Lowest AQI (US) recorded in
February13AQI (US)
202023AQI (US)
Highest AQI (US) recorded in
March50AQI (US)
Lowest AQI (US) recorded in
September10AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Katahira's annual 2026 AQI (US) (34) shows an average percentage change of 10.4% (worsened AQI (US)) compared to previous years: 2020 (23), 2021 (27), 2022 (34), 2023 (37), 2024 (35), 2025 (34).