Misasagishichonocho, Otsu, Shiga, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Misasagishichonocho, Otsu, Shiga, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 36 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Misasagishichonocho, Otsu, Shiga, Japan
5 AM21st Sep 2025
6 PM
4 AM22nd Sep 2025
AQI
AQI
46AQI
13AQI
In the last 24 hours,
Misasagishichonocho's AQI reached its highest point of 46 at 3 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Misasagishichonocho, Otsu, Shiga, Japan
29°C25/33°C
29°C26/34°C
29°C25/34°C
29°C25/33°C
27°C24/33°C
28°C23/32°C
29°C25/34°C
30°C25/36°C
30°C25/36°C
30°C26/35°C
29°C26/34°C
29°C25/34°C
25°C24/27°C
25°C23/28°C
26°C21/32°C
27°C23/32°C
28°C24/32°C
28°C24/33°C
27°C23/32°C
25°C23/29°C
25°C23/28°C
26°C23/30°C
27°C24/31°C
28°C25/33°C
28°C24/34°C
28°C25/32°C
26°C23/31°C
24°C22/29°C
23°C22/24°C
--°C/°C
--°C/°C
42AQI
38AQI
41AQI
39AQI
2025 Days Vs Air Quality
Misasagishichonocho, Otsu, Shiga, Japan
72%
190
28%
73
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 72%
Health Risk Level:
Low
In 2025, 72% of 264 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
Misasagishichonocho, Otsu, Shiga, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
41AQI
31AQI
33AQI
33AQI
40AQI
36AQI
34AQI
31AQI
26AQI
25AQI
36AQI
31AQI
50AQI
51AQI
56AQI
43AQI
38AQI
37AQI
43AQI
37AQI
50AQI
64AQI
57AQI
44AQI
38AQI
36AQI
35AQI
31AQI
39AQI
75AQI
71AQI
47AQI
54AQI
39AQI
39AQI
33AQI
36AQI
29AQI
30AQI
30AQI
29AQI
33AQI
30AQI
36AQI
28AQI
41AQI
36AQI
33AQI
29AQI
27AQI
28AQI
29AQI
30AQI
30AQI
36AQI
42AQI
55AQI
57AQI
61AQI
69AQI
44AQI
42AQI
28AQI
36AQI
31AQI
38AQI
37AQI
40AQI
32AQI
33AQI
47AQI
39AQI
37AQI
23AQI
27AQI
26AQI
27AQI
43AQI
55AQI
62AQI
71AQI
73AQI
74AQI
86AQI
82AQI
50AQI
45AQI
32AQI
37AQI
29AQI
28AQI
21AQI
24AQI
39AQI
39AQI
48AQI
47AQI
45AQI
53AQI
53AQI
52AQI
31AQI
48AQI
26AQI
48AQI
49AQI
59AQI
60AQI
51AQI
43AQI
48AQI
26AQI
25AQI
68AQI
55AQI
62AQI
47AQI
57AQI
65AQI
56AQI
42AQI
47AQI
39AQI
43AQI
27AQI
30AQI
31AQI
35AQI
30AQI
33AQI
48AQI
53AQI
59AQI
55AQI
55AQI
41AQI
51AQI
52AQI
65AQI
47AQI
36AQI
54AQI
39AQI
27AQI
30AQI
30AQI
28AQI
40AQI
34AQI
36AQI
41AQI
49AQI
29AQI
46AQI
41AQI
45AQI
52AQI
65AQI
45AQI
29AQI
34AQI
41AQI
45AQI
35AQI
29AQI
37AQI
37AQI
47AQI
51AQI
54AQI
54AQI
52AQI
48AQI
44AQI
42AQI
41AQI
49AQI
45AQI
49AQI
54AQI
59AQI
78AQI
85AQI
90AQI
93AQI
82AQI
73AQI
77AQI
81AQI
69AQI
60AQI
59AQI
57AQI
48AQI
53AQI
55AQI
45AQI
46AQI
36AQI
33AQI
32AQI
36AQI
42AQI
37AQI
34AQI
29AQI
27AQI
28AQI
39AQI
40AQI
41AQI
45AQI
46AQI
50AQI
63AQI
53AQI
52AQI
48AQI
42AQI
46AQI
45AQI
36AQI
36AQI
38AQI
44AQI
44AQI
43AQI
43AQI
46AQI
48AQI
47AQI
48AQI
45AQI
51AQI
57AQI
57AQI
57AQI
54AQI
52AQI
56AQI
56AQI
55AQI
41AQI
35AQI
39AQI
26AQI
23AQI
28AQI
34AQI
38AQI
39AQI
35AQI
30AQI
30AQI
27AQI
37AQI
38AQI
43AQI
51AQI
35AQI
34AQI
36AQI
40AQI
37AQI
46AQI
45AQI
42AQI
44AQI
54AQI
48AQI
35AQI
No. of days
202544AQI
Highest AQI recorded in
July54AQI
Lowest AQI recorded in
September35AQI
202437AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
October32AQI
202344AQI
Highest AQI recorded in
April52AQI
Lowest AQI recorded in
August37AQI
202244AQI
Highest AQI recorded in
May52AQI
Lowest AQI recorded in
December37AQI
202141AQI
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
December34AQI
202041AQI
Highest AQI recorded in
August60AQI
Lowest AQI recorded in
December35AQI
Most & Least Polluted Years Over the Last 6 Years
Misasagishichonocho's annual 2025 AQI (44) shows an average percentage change of 6.8% (worsened AQI) compared to previous years: 2020 (41), 2021 (41), 2022 (44), 2023 (44), 2024 (37).