Tendo, Yamagata, 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
Tendo, Yamagata, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 3rd Aug - 4th Aug 2026
Tendo, Yamagata, Japan
4 AM3rd Aug 2026
6 PM
3 AM4th Aug 2026
29AQI
8AQI
40AQI
21AQI
In the last 24 hours,
Tendo's AQI reached its highest point of 40 at 1 AM during the Night, while the lowest point, 8, was recorded at 3 PM during the Day between 3rd Aug and 4th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Tendo, Yamagata, Japan
20°C17/23°C
20°C15/25°C
21°C15/26°C
22°C16/30°C
24°C18/31°C
22°C18/28°C
20°C19/22°C
21°C19/25°C
24°C18/31°C
25°C19/33°C
25°C20/31°C
23°C20/26°C
23°C21/27°C
24°C20/31°C
25°C20/31°C
25°C20/30°C
25°C19/31°C
25°C19/32°C
21°C19/24°C
21°C20/24°C
20°C19/20°C
20°C17/24°C
20°C15/25°C
20°C18/23°C
22°C18/26°C
21°C19/24°C
22°C19/25°C
20°C18/22°C
18°C14/21°C
18°C12/26°C
34AQI
29AQI
34AQI
30AQI
2026 Days Vs Air Quality
Tendo, Yamagata, Japan
83%
179
17%
37
Total number of days with different AQI categories in last 216 days in 2026 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 216 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
Tendo, Yamagata, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI (US)
18AQI (US)
21AQI (US)
20AQI (US)
26AQI (US)
21AQI (US)
30AQI (US)
24AQI (US)
20AQI (US)
25AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
16AQI (US)
21AQI (US)
27AQI (US)
39AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
19AQI (US)
26AQI (US)
47AQI (US)
41AQI (US)
41AQI (US)
34AQI (US)
41AQI (US)
15AQI (US)
13AQI (US)
32AQI (US)
41AQI (US)
35AQI (US)
39AQI (US)
32AQI (US)
20AQI (US)
18AQI (US)
32AQI (US)
18AQI (US)
23AQI (US)
43AQI (US)
55AQI (US)
65AQI (US)
27AQI (US)
28AQI (US)
73AQI (US)
51AQI (US)
41AQI (US)
20AQI (US)
31AQI (US)
31AQI (US)
32AQI (US)
49AQI (US)
43AQI (US)
47AQI (US)
36AQI (US)
38AQI (US)
34AQI (US)
42AQI (US)
44AQI (US)
52AQI (US)
89AQI (US)
56AQI (US)
76AQI (US)
68AQI (US)
59AQI (US)
49AQI (US)
54AQI (US)
53AQI (US)
56AQI (US)
56AQI (US)
71AQI (US)
49AQI (US)
50AQI (US)
62AQI (US)
66AQI (US)
64AQI (US)
59AQI (US)
43AQI (US)
25AQI (US)
49AQI (US)
43AQI (US)
43AQI (US)
65AQI (US)
62AQI (US)
38AQI (US)
17AQI (US)
47AQI (US)
70AQI (US)
60AQI (US)
47AQI (US)
23AQI (US)
23AQI (US)
49AQI (US)
49AQI (US)
20AQI (US)
18AQI (US)
26AQI (US)
26AQI (US)
43AQI (US)
45AQI (US)
38AQI (US)
33AQI (US)
36AQI (US)
45AQI (US)
49AQI (US)
32AQI (US)
40AQI (US)
38AQI (US)
40AQI (US)
38AQI (US)
46AQI (US)
25AQI (US)
22AQI (US)
32AQI (US)
47AQI (US)
47AQI (US)
46AQI (US)
38AQI (US)
31AQI (US)
41AQI (US)
51AQI (US)
52AQI (US)
39AQI (US)
31AQI (US)
27AQI (US)
37AQI (US)
34AQI (US)
26AQI (US)
30AQI (US)
38AQI (US)
37AQI (US)
42AQI (US)
46AQI (US)
40AQI (US)
39AQI (US)
85AQI (US)
68AQI (US)
54AQI (US)
49AQI (US)
61AQI (US)
61AQI (US)
65AQI (US)
56AQI (US)
60AQI (US)
51AQI (US)
41AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
35AQI (US)
20AQI (US)
15AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
20AQI (US)
22AQI (US)
21AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
27AQI (US)
30AQI (US)
21AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
21AQI (US)
27AQI (US)
29AQI (US)
27AQI (US)
29AQI (US)
28AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
17AQI (US)
27AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
34AQI (US)
63AQI (US)
55AQI (US)
54AQI (US)
27AQI (US)
28AQI (US)
36AQI (US)
33AQI (US)
34AQI (US)
36AQI (US)
37AQI (US)
34AQI (US)
32AQI (US)
39AQI (US)
32AQI (US)
18AQI (US)
39AQI (US)
26AQI (US)
37AQI (US)
55AQI (US)
36AQI (US)
43AQI (US)
24AQI (US)
31AQI (US)
32AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March55AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202538AQI (US)
Highest AQI (US) recorded in
October50AQI (US)
Lowest AQI (US) recorded in
February29AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
April44AQI (US)
Lowest AQI (US) recorded in
January16AQI (US)
202320AQI (US)
Highest AQI (US) recorded in
December21AQI (US)
Lowest AQI (US) recorded in
November13AQI (US)
202024AQI (US)
Highest AQI (US) recorded in
September43AQI (US)
Lowest AQI (US) recorded in
April2AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Tendo's annual 2026 AQI (US) (36) shows an average percentage change of 34.3% (worsened AQI (US)) compared to previous years: 2020 (24), 2023 (20), 2024 (32), 2025 (38).