Kikugawa, Shizuoka, 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
Kikugawa, Shizuoka, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 42 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Kikugawa, Shizuoka, Japan
5 AM3rd Oct 2025
5 PM
4 AM4th Oct 2025
AQI
AQI
56AQI
33AQI
In the last 24 hours,
Kikugawa's AQI reached its highest point of 56 at 1 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kikugawa, Shizuoka, Japan
25°C24/26°C
24°C22/26°C
25°C22/30°C
26°C23/31°C
28°C23/34°C
28°C25/32°C
27°C24/30°C
26°C23/30°C
25°C22/29°C
25°C23/27°C
27°C24/31°C
27°C24/31°C
27°C23/31°C
28°C24/33°C
28°C25/33°C
24°C22/26°C
22°C20/23°C
26°C22/31°C
23°C20/26°C
22°C19/26°C
22°C18/26°C
23°C20/27°C
25°C21/31°C
24°C21/27°C
24°C21/27°C
24°C21/29°C
23°C20/26°C
21°C19/24°C
21°C17/27°C
--°C/°C
--°C/°C
34AQI
31AQI
35AQI
31AQI
2025 Days Vs Air Quality
Kikugawa, Shizuoka, Japan
88%
242
12%
32
0.3%
1
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 276 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
Kikugawa, Shizuoka, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
33AQI
30AQI
29AQI
30AQI
27AQI
29AQI
26AQI
29AQI
25AQI
27AQI
25AQI
28AQI
36AQI
39AQI
27AQI
29AQI
28AQI
29AQI
31AQI
36AQI
33AQI
56AQI
53AQI
46AQI
37AQI
30AQI
33AQI
31AQI
32AQI
42AQI
39AQI
32AQI
38AQI
31AQI
33AQI
31AQI
35AQI
30AQI
30AQI
31AQI
32AQI
29AQI
32AQI
30AQI
31AQI
37AQI
37AQI
32AQI
31AQI
30AQI
30AQI
31AQI
32AQI
33AQI
40AQI
36AQI
40AQI
49AQI
48AQI
51AQI
40AQI
36AQI
28AQI
30AQI
31AQI
30AQI
34AQI
35AQI
30AQI
27AQI
47AQI
36AQI
37AQI
20AQI
19AQI
20AQI
17AQI
30AQI
54AQI
49AQI
62AQI
59AQI
68AQI
113AQI
77AQI
64AQI
45AQI
41AQI
33AQI
27AQI
25AQI
23AQI
24AQI
27AQI
25AQI
34AQI
41AQI
37AQI
50AQI
42AQI
50AQI
27AQI
50AQI
23AQI
41AQI
45AQI
52AQI
63AQI
47AQI
51AQI
43AQI
31AQI
40AQI
45AQI
50AQI
52AQI
41AQI
44AQI
48AQI
46AQI
29AQI
37AQI
34AQI
35AQI
23AQI
28AQI
28AQI
29AQI
22AQI
24AQI
31AQI
41AQI
43AQI
44AQI
45AQI
31AQI
47AQI
46AQI
60AQI
39AQI
33AQI
40AQI
37AQI
23AQI
27AQI
25AQI
28AQI
30AQI
22AQI
22AQI
20AQI
27AQI
22AQI
34AQI
41AQI
44AQI
50AQI
58AQI
40AQI
29AQI
30AQI
44AQI
38AQI
30AQI
31AQI
40AQI
42AQI
49AQI
51AQI
38AQI
33AQI
23AQI
24AQI
22AQI
21AQI
21AQI
34AQI
38AQI
35AQI
40AQI
41AQI
44AQI
44AQI
45AQI
80AQI
70AQI
79AQI
84AQI
75AQI
51AQI
50AQI
48AQI
46AQI
39AQI
39AQI
43AQI
46AQI
38AQI
35AQI
33AQI
31AQI
29AQI
28AQI
26AQI
25AQI
24AQI
22AQI
25AQI
28AQI
35AQI
34AQI
42AQI
42AQI
45AQI
64AQI
49AQI
52AQI
46AQI
45AQI
49AQI
43AQI
39AQI
35AQI
37AQI
36AQI
40AQI
37AQI
41AQI
43AQI
43AQI
46AQI
47AQI
43AQI
47AQI
54AQI
56AQI
53AQI
53AQI
51AQI
54AQI
55AQI
54AQI
39AQI
33AQI
36AQI
23AQI
23AQI
26AQI
30AQI
30AQI
36AQI
31AQI
27AQI
28AQI
25AQI
33AQI
41AQI
46AQI
50AQI
45AQI
36AQI
32AQI
28AQI
29AQI
30AQI
28AQI
36AQI
40AQI
36AQI
31AQI
23AQI
22AQI
26AQI
42AQI
33AQI
34AQI
42AQI
40AQI
34AQI
35AQI
43AQI
46AQI
32AQI
34AQI
No. of days
202538AQI
Highest AQI recorded in
August46AQI
Lowest AQI recorded in
September32AQI
202433AQI
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
December28AQI
202335AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August26AQI
202232AQI
Highest AQI recorded in
March40AQI
Lowest AQI recorded in
August19AQI
202131AQI
Highest AQI recorded in
May37AQI
Lowest AQI recorded in
January22AQI
202023AQI
Highest AQI recorded in
August29AQI
Lowest AQI recorded in
December20AQI
Most & Least Polluted Years Over the Last 6 Years
Kikugawa's annual 2025 AQI (38) shows an average percentage change of 24.1% (worsened AQI) compared to previous years: 2020 (23), 2021 (31), 2022 (32), 2023 (35), 2024 (33).