Otowadai, Otsu, Shiga, 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
Otowadai, Otsu, Shiga, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 26 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Otowadai, Otsu, Shiga, Japan
4 AM5th Aug 2026
7 PM
3 AM6th Aug 2026
38AQI
20AQI
29AQI
23AQI
In the last 24 hours,
Otowadai's AQI reached its highest point of 38 at 2 PM during the Day, while the lowest point, 20, was recorded at 8 AM during the Day between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Otowadai, Otsu, Shiga, Japan
24°C21/30°C
26°C21/32°C
26°C20/33°C
26°C22/32°C
27°C23/32°C
28°C24/33°C
29°C23/34°C
29°C24/34°C
28°C25/32°C
29°C23/35°C
29°C26/33°C
29°C25/33°C
30°C25/35°C
31°C26/36°C
31°C26/37°C
31°C26/37°C
31°C25/37°C
30°C25/36°C
29°C24/36°C
30°C25/35°C
27°C23/33°C
27°C23/31°C
30°C25/36°C
29°C24/35°C
29°C24/36°C
30°C26/34°C
29°C25/34°C
28°C25/33°C
28°C23/34°C
29°C25/34°C
45AQI
39AQI
39AQI
38AQI
2026 Days Vs Air Quality
Otowadai, Otsu, Shiga, Japan
77%
168
23%
50
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2026, 77% of 218 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
Otowadai, Otsu, Shiga, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
15AQI (US)
15AQI (US)
14AQI (US)
20AQI (US)
32AQI (US)
18AQI (US)
23AQI (US)
22AQI (US)
17AQI (US)
17AQI (US)
19AQI (US)
19AQI (US)
27AQI (US)
20AQI (US)
36AQI (US)
45AQI (US)
55AQI (US)
42AQI (US)
37AQI (US)
24AQI (US)
13AQI (US)
25AQI (US)
51AQI (US)
46AQI (US)
28AQI (US)
28AQI (US)
43AQI (US)
28AQI (US)
24AQI (US)
36AQI (US)
31AQI (US)
37AQI (US)
54AQI (US)
32AQI (US)
46AQI (US)
58AQI (US)
45AQI (US)
11AQI (US)
14AQI (US)
38AQI (US)
47AQI (US)
40AQI (US)
49AQI (US)
59AQI (US)
72AQI (US)
56AQI (US)
48AQI (US)
16AQI (US)
21AQI (US)
32AQI (US)
31AQI (US)
55AQI (US)
42AQI (US)
52AQI (US)
56AQI (US)
27AQI (US)
14AQI (US)
46AQI (US)
48AQI (US)
51AQI (US)
81AQI (US)
49AQI (US)
58AQI (US)
57AQI (US)
53AQI (US)
48AQI (US)
47AQI (US)
51AQI (US)
58AQI (US)
55AQI (US)
67AQI (US)
47AQI (US)
47AQI (US)
62AQI (US)
62AQI (US)
53AQI (US)
58AQI (US)
50AQI (US)
56AQI (US)
48AQI (US)
53AQI (US)
52AQI (US)
66AQI (US)
57AQI (US)
10AQI (US)
32AQI (US)
62AQI (US)
70AQI (US)
56AQI (US)
23AQI (US)
22AQI (US)
46AQI (US)
51AQI (US)
43AQI (US)
20AQI (US)
37AQI (US)
43AQI (US)
33AQI (US)
41AQI (US)
47AQI (US)
37AQI (US)
37AQI (US)
36AQI (US)
48AQI (US)
40AQI (US)
36AQI (US)
41AQI (US)
32AQI (US)
39AQI (US)
38AQI (US)
40AQI (US)
46AQI (US)
36AQI (US)
32AQI (US)
46AQI (US)
50AQI (US)
49AQI (US)
46AQI (US)
40AQI (US)
36AQI (US)
46AQI (US)
53AQI (US)
53AQI (US)
22AQI (US)
21AQI (US)
33AQI (US)
34AQI (US)
27AQI (US)
28AQI (US)
34AQI (US)
37AQI (US)
40AQI (US)
44AQI (US)
40AQI (US)
42AQI (US)
83AQI (US)
67AQI (US)
53AQI (US)
48AQI (US)
61AQI (US)
60AQI (US)
64AQI (US)
56AQI (US)
60AQI (US)
49AQI (US)
40AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
27AQI (US)
30AQI (US)
31AQI (US)
23AQI (US)
25AQI (US)
22AQI (US)
24AQI (US)
21AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
25AQI (US)
40AQI (US)
28AQI (US)
25AQI (US)
23AQI (US)
29AQI (US)
24AQI (US)
20AQI (US)
30AQI (US)
22AQI (US)
21AQI (US)
19AQI (US)
21AQI (US)
21AQI (US)
26AQI (US)
29AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
46AQI (US)
57AQI (US)
13AQI (US)
26AQI (US)
25AQI (US)
20AQI (US)
19AQI (US)
23AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
29AQI (US)
29AQI (US)
28AQI (US)
59AQI (US)
47AQI (US)
56AQI (US)
42AQI (US)
43AQI (US)
72AQI (US)
81AQI (US)
62AQI (US)
37AQI (US)
45AQI (US)
41AQI (US)
31AQI (US)
37AQI (US)
38AQI (US)
54AQI (US)
40AQI (US)
49AQI (US)
48AQI (US)
52AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
41AQI (US)
53AQI (US)
40AQI (US)
43AQI (US)
26AQI (US)
38AQI (US)
38AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
July53AQI (US)
Lowest AQI (US) recorded in
December29AQI (US)
202438AQI (US)
Highest AQI (US) recorded in
April50AQI (US)
Lowest AQI (US) recorded in
January28AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
April48AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202238AQI (US)
Highest AQI (US) recorded in
May48AQI (US)
Lowest AQI (US) recorded in
December28AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
June45AQI (US)
Lowest AQI (US) recorded in
January27AQI (US)
202037AQI (US)
Highest AQI (US) recorded in
August54AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Otowadai's annual 2026 AQI (US) (38) shows an average percentage change of -1.04% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (36), 2022 (38), 2023 (40), 2024 (38), 2025 (42).