Yasugicho, Shimane, 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
Yasugicho, Shimane, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Yasugicho, Shimane, Japan
5 AM22nd Sep 2025
6 PM
4 AM23rd Sep 2025
AQI
AQI
26AQI
15AQI
In the last 24 hours,
Yasugicho's AQI reached its highest point of 26 at 9 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Yasugicho, Shimane, Japan
28°C25/31°C
27°C25/30°C
28°C25/31°C
27°C25/30°C
26°C24/29°C
28°C24/32°C
28°C25/32°C
28°C25/31°C
28°C25/32°C
28°C25/32°C
27°C24/29°C
26°C24/29°C
26°C25/27°C
26°C22/29°C
28°C25/32°C
26°C24/30°C
25°C24/28°C
24°C23/26°C
25°C24/28°C
25°C23/28°C
26°C24/31°C
25°C23/27°C
26°C24/30°C
27°C24/31°C
27°C25/30°C
24°C22/25°C
23°C21/25°C
24°C21/27°C
22°C20/23°C
--°C/°C
--°C/°C
37AQI
30AQI
36AQI
32AQI
2025 Days Vs Air Quality
Yasugicho, Shimane, Japan
75%
199
25%
65
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 265 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
Yasugicho, Shimane, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
34AQI
30AQI
31AQI
29AQI
35AQI
32AQI
31AQI
30AQI
29AQI
28AQI
30AQI
31AQI
46AQI
34AQI
34AQI
28AQI
29AQI
37AQI
35AQI
37AQI
55AQI
60AQI
53AQI
43AQI
38AQI
31AQI
31AQI
34AQI
45AQI
76AQI
59AQI
44AQI
48AQI
39AQI
39AQI
33AQI
34AQI
32AQI
30AQI
32AQI
30AQI
35AQI
30AQI
34AQI
30AQI
35AQI
38AQI
33AQI
33AQI
32AQI
32AQI
33AQI
33AQI
35AQI
35AQI
49AQI
49AQI
54AQI
48AQI
46AQI
42AQI
38AQI
31AQI
35AQI
36AQI
37AQI
39AQI
39AQI
40AQI
39AQI
45AQI
37AQI
30AQI
22AQI
26AQI
26AQI
37AQI
42AQI
57AQI
61AQI
71AQI
63AQI
81AQI
73AQI
71AQI
54AQI
47AQI
42AQI
40AQI
37AQI
30AQI
22AQI
32AQI
38AQI
47AQI
47AQI
50AQI
50AQI
57AQI
54AQI
50AQI
40AQI
42AQI
30AQI
45AQI
43AQI
54AQI
51AQI
42AQI
40AQI
40AQI
23AQI
28AQI
69AQI
52AQI
55AQI
45AQI
53AQI
54AQI
51AQI
43AQI
45AQI
39AQI
40AQI
31AQI
31AQI
28AQI
28AQI
35AQI
40AQI
53AQI
54AQI
60AQI
58AQI
57AQI
42AQI
48AQI
53AQI
55AQI
60AQI
41AQI
50AQI
39AQI
30AQI
29AQI
32AQI
32AQI
37AQI
36AQI
39AQI
46AQI
49AQI
32AQI
41AQI
39AQI
51AQI
59AQI
64AQI
59AQI
36AQI
51AQI
52AQI
49AQI
34AQI
31AQI
32AQI
33AQI
46AQI
45AQI
53AQI
62AQI
76AQI
51AQI
49AQI
50AQI
53AQI
58AQI
56AQI
52AQI
57AQI
69AQI
60AQI
58AQI
68AQI
60AQI
52AQI
55AQI
56AQI
65AQI
66AQI
57AQI
53AQI
54AQI
39AQI
49AQI
57AQI
43AQI
38AQI
36AQI
34AQI
37AQI
36AQI
43AQI
50AQI
36AQI
31AQI
27AQI
29AQI
36AQI
41AQI
44AQI
44AQI
42AQI
44AQI
57AQI
49AQI
45AQI
44AQI
39AQI
42AQI
30AQI
30AQI
31AQI
37AQI
42AQI
40AQI
40AQI
40AQI
45AQI
51AQI
52AQI
51AQI
49AQI
49AQI
49AQI
47AQI
49AQI
46AQI
43AQI
47AQI
46AQI
45AQI
43AQI
37AQI
35AQI
25AQI
25AQI
26AQI
31AQI
33AQI
30AQI
30AQI
29AQI
29AQI
34AQI
32AQI
31AQI
31AQI
33AQI
24AQI
23AQI
33AQI
22AQI
37AQI
37AQI
45AQI
44AQI
42AQI
49AQI
48AQI
44AQI
30AQI
No. of days
202542AQI
Highest AQI recorded in
June49AQI
Lowest AQI recorded in
September30AQI
202435AQI
Highest AQI recorded in
April47AQI
Lowest AQI recorded in
July28AQI
202339AQI
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
August31AQI
202242AQI
Highest AQI recorded in
September68AQI
Lowest AQI recorded in
August22AQI
202136AQI
Highest AQI recorded in
June46AQI
Lowest AQI recorded in
January32AQI
202035AQI
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
July26AQI
Most & Least Polluted Years Over the Last 6 Years
Yasugicho's annual 2025 AQI (42) shows an average percentage change of 13.4% (worsened AQI) compared to previous years: 2020 (35), 2021 (36), 2022 (42), 2023 (39), 2024 (35).