Tsudamachi Tsuda, Takamatsu, Kagawa, 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
Tsudamachi Tsuda, Takamatsu, Kagawa, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 40 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: 4th Oct - 5th Oct 2025
Tsudamachi Tsuda, Takamatsu, Kagawa, Japan
5 AM4th Oct 2025
6 PM
4 AM5th Oct 2025
AQI
AQI
64AQI
43AQI
In the last 24 hours,
Tsudamachi Tsuda's AQI reached its highest point of 64 at 2 AM during the Night, while the lowest point, 43, was recorded at 5 PM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Tsudamachi Tsuda, Takamatsu, Kagawa, Japan
27°C25/31°C
27°C24/30°C
29°C26/32°C
28°C25/31°C
29°C26/32°C
28°C25/32°C
26°C23/29°C
27°C24/30°C
27°C24/30°C
28°C26/31°C
29°C26/32°C
28°C26/31°C
28°C25/31°C
26°C24/30°C
25°C23/27°C
26°C24/28°C
24°C22/28°C
23°C20/25°C
23°C22/24°C
25°C22/29°C
25°C23/28°C
25°C23/29°C
24°C22/26°C
23°C21/25°C
24°C20/26°C
22°C19/25°C
23°C20/27°C
23°C20/26°C
21°C20/23°C
--°C/°C
--°C/°C
37AQI
30AQI
36AQI
32AQI
2025 Days Vs Air Quality
Tsudamachi Tsuda, Takamatsu, Kagawa, Japan
72%
199
28%
77
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 72%
Health Risk Level:
Low
In 2025, 72% of 277 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
Tsudamachi Tsuda, Takamatsu, Kagawa, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
35AQI
45AQI
37AQI
32AQI
32AQI
38AQI
33AQI
29AQI
28AQI
27AQI
28AQI
30AQI
34AQI
44AQI
38AQI
35AQI
30AQI
29AQI
38AQI
36AQI
41AQI
54AQI
65AQI
66AQI
44AQI
41AQI
34AQI
36AQI
32AQI
43AQI
62AQI
69AQI
47AQI
53AQI
40AQI
41AQI
33AQI
36AQI
32AQI
32AQI
32AQI
34AQI
39AQI
33AQI
38AQI
30AQI
47AQI
46AQI
40AQI
38AQI
34AQI
34AQI
36AQI
37AQI
37AQI
39AQI
39AQI
69AQI
77AQI
88AQI
89AQI
54AQI
45AQI
34AQI
40AQI
35AQI
38AQI
41AQI
42AQI
42AQI
57AQI
55AQI
48AQI
38AQI
26AQI
41AQI
30AQI
38AQI
45AQI
61AQI
64AQI
69AQI
73AQI
71AQI
84AQI
76AQI
53AQI
49AQI
40AQI
38AQI
38AQI
40AQI
28AQI
34AQI
40AQI
46AQI
48AQI
48AQI
59AQI
61AQI
60AQI
56AQI
42AQI
54AQI
28AQI
46AQI
47AQI
57AQI
57AQI
56AQI
45AQI
46AQI
41AQI
33AQI
63AQI
58AQI
61AQI
55AQI
49AQI
61AQI
56AQI
40AQI
50AQI
38AQI
45AQI
27AQI
33AQI
28AQI
34AQI
30AQI
36AQI
50AQI
56AQI
60AQI
58AQI
54AQI
37AQI
51AQI
56AQI
62AQI
46AQI
36AQI
50AQI
36AQI
27AQI
30AQI
36AQI
37AQI
38AQI
37AQI
40AQI
47AQI
51AQI
30AQI
46AQI
46AQI
51AQI
55AQI
67AQI
43AQI
30AQI
39AQI
57AQI
53AQI
32AQI
31AQI
45AQI
36AQI
47AQI
51AQI
57AQI
54AQI
53AQI
40AQI
38AQI
37AQI
40AQI
52AQI
57AQI
57AQI
59AQI
61AQI
84AQI
79AQI
97AQI
85AQI
67AQI
66AQI
71AQI
83AQI
78AQI
61AQI
53AQI
47AQI
41AQI
50AQI
59AQI
38AQI
40AQI
36AQI
33AQI
32AQI
39AQI
36AQI
32AQI
26AQI
25AQI
24AQI
25AQI
33AQI
38AQI
42AQI
46AQI
44AQI
45AQI
59AQI
48AQI
50AQI
46AQI
50AQI
49AQI
45AQI
35AQI
34AQI
41AQI
46AQI
45AQI
42AQI
41AQI
45AQI
47AQI
46AQI
41AQI
42AQI
47AQI
50AQI
51AQI
54AQI
53AQI
51AQI
54AQI
54AQI
53AQI
39AQI
33AQI
39AQI
25AQI
22AQI
26AQI
31AQI
33AQI
32AQI
33AQI
29AQI
29AQI
30AQI
31AQI
38AQI
43AQI
47AQI
33AQI
30AQI
37AQI
26AQI
28AQI
30AQI
27AQI
27AQI
32AQI
31AQI
32AQI
29AQI
28AQI
42AQI
43AQI
40AQI
39AQI
42AQI
52AQI
49AQI
42AQI
47AQI
51AQI
47AQI
32AQI
42AQI
No. of days
202544AQI
Highest AQI recorded in
March52AQI
Lowest AQI recorded in
September32AQI
202439AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
December31AQI
202341AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August31AQI
202241AQI
Highest AQI recorded in
May50AQI
Lowest AQI recorded in
August25AQI
202138AQI
Highest AQI recorded in
May45AQI
Lowest AQI recorded in
August33AQI
202036AQI
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
September29AQI
Most & Least Polluted Years Over the Last 6 Years
Tsudamachi Tsuda's annual 2025 AQI (44) shows an average percentage change of 14.4% (worsened AQI) compared to previous years: 2020 (36), 2021 (38), 2022 (41), 2023 (41), 2024 (39).