Kataniwacho, Gotsucho, Shimane, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Kataniwacho, Gotsucho, Shimane, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 48 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Kataniwacho, Gotsucho, Shimane, Japan
5 AM5th Oct 2025
6 PM
4 AM6th Oct 2025
AQI
AQI
54AQI
42AQI
In the last 24 hours,
Kataniwacho's AQI reached its highest point of 54 at 1 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kataniwacho, Gotsucho, Shimane, Japan
26°C23/29°C
27°C25/29°C
26°C25/28°C
25°C24/27°C
24°C23/25°C
25°C23/27°C
25°C23/27°C
26°C24/29°C
25°C24/27°C
26°C24/29°C
26°C24/29°C
26°C25/29°C
23°C21/24°C
23°C20/26°C
24°C22/27°C
22°C20/24°C
21°C18/25°C
21°C20/22°C
24°C22/28°C
24°C23/27°C
24°C22/26°C
22°C20/26°C
22°C19/25°C
21°C19/22°C
20°C18/23°C
21°C18/23°C
21°C18/24°C
19°C18/20°C
22°C20/25°C
--°C/°C
--°C/°C
30AQI
27AQI
32AQI
30AQI
2025 Days Vs Air Quality
Kataniwacho, Gotsucho, Shimane, Japan
78%
215
22%
62
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 278 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
Kataniwacho, Gotsucho, Shimane, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
34AQI
31AQI
33AQI
29AQI
43AQI
30AQI
34AQI
29AQI
29AQI
29AQI
31AQI
36AQI
45AQI
34AQI
33AQI
28AQI
26AQI
35AQI
34AQI
39AQI
54AQI
61AQI
52AQI
43AQI
38AQI
33AQI
32AQI
31AQI
47AQI
56AQI
49AQI
38AQI
48AQI
34AQI
39AQI
32AQI
36AQI
32AQI
31AQI
32AQI
32AQI
30AQI
31AQI
34AQI
31AQI
35AQI
42AQI
33AQI
35AQI
32AQI
33AQI
34AQI
33AQI
35AQI
35AQI
47AQI
46AQI
52AQI
51AQI
41AQI
42AQI
35AQI
32AQI
34AQI
35AQI
35AQI
38AQI
38AQI
38AQI
39AQI
42AQI
32AQI
28AQI
20AQI
29AQI
31AQI
39AQI
46AQI
54AQI
63AQI
67AQI
61AQI
72AQI
77AQI
61AQI
60AQI
44AQI
40AQI
38AQI
37AQI
28AQI
23AQI
28AQI
36AQI
45AQI
43AQI
42AQI
54AQI
55AQI
56AQI
51AQI
45AQI
43AQI
30AQI
46AQI
43AQI
52AQI
49AQI
44AQI
37AQI
37AQI
23AQI
34AQI
72AQI
51AQI
56AQI
46AQI
53AQI
53AQI
47AQI
41AQI
44AQI
41AQI
40AQI
32AQI
32AQI
30AQI
28AQI
33AQI
42AQI
53AQI
54AQI
60AQI
59AQI
56AQI
45AQI
50AQI
53AQI
51AQI
54AQI
40AQI
49AQI
35AQI
32AQI
28AQI
34AQI
33AQI
38AQI
40AQI
37AQI
45AQI
50AQI
34AQI
43AQI
44AQI
49AQI
59AQI
63AQI
62AQI
39AQI
50AQI
53AQI
50AQI
34AQI
32AQI
33AQI
33AQI
46AQI
38AQI
51AQI
56AQI
69AQI
47AQI
44AQI
46AQI
52AQI
53AQI
48AQI
42AQI
51AQI
65AQI
64AQI
67AQI
75AQI
66AQI
57AQI
60AQI
62AQI
66AQI
71AQI
64AQI
59AQI
55AQI
41AQI
52AQI
56AQI
45AQI
36AQI
34AQI
33AQI
30AQI
31AQI
38AQI
40AQI
41AQI
30AQI
28AQI
29AQI
32AQI
43AQI
37AQI
45AQI
44AQI
45AQI
52AQI
48AQI
47AQI
52AQI
44AQI
44AQI
31AQI
28AQI
31AQI
40AQI
42AQI
39AQI
39AQI
40AQI
46AQI
53AQI
51AQI
49AQI
46AQI
48AQI
44AQI
44AQI
43AQI
44AQI
44AQI
48AQI
45AQI
45AQI
41AQI
36AQI
36AQI
27AQI
22AQI
27AQI
32AQI
32AQI
28AQI
29AQI
29AQI
28AQI
34AQI
30AQI
31AQI
30AQI
30AQI
24AQI
24AQI
27AQI
20AQI
22AQI
23AQI
25AQI
29AQI
31AQI
20AQI
26AQI
17AQI
26AQI
29AQI
56AQI
44AQI
48AQI
37AQI
36AQI
44AQI
44AQI
42AQI
47AQI
49AQI
44AQI
28AQI
44AQI
No. of days
202541AQI
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
September28AQI
202435AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
July27AQI
202338AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August29AQI
202238AQI
Highest AQI recorded in
May48AQI
Lowest AQI recorded in
September30AQI
202134AQI
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
January29AQI
202043AQI
Highest AQI recorded in
August67AQI
Lowest AQI recorded in
December26AQI
Most & Least Polluted Years Over the Last 6 Years
Kataniwacho's annual 2025 AQI (41) shows an average percentage change of 10.6% (worsened AQI) compared to previous years: 2020 (43), 2021 (34), 2022 (38), 2023 (38), 2024 (35).