Kamiyoshida, Yamanashi, 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
Kamiyoshida, Yamanashi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (5th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Kamiyoshida, Yamanashi, Japan
5 AM5th Oct 2025
5 PM
4 AM6th Oct 2025
79AQI
37AQI
56AQI
44AQI
In the last 24 hours,
Kamiyoshida's AQI reached its highest point of 79 at 3 PM during the Day, while the lowest point, 37, was recorded at 7 AM during the Day between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kamiyoshida, Yamanashi, Japan
20°C15/26°C
21°C16/28°C
22°C18/30°C
22°C18/27°C
21°C17/26°C
20°C17/25°C
19°C16/22°C
20°C17/25°C
22°C18/28°C
21°C19/24°C
22°C18/27°C
23°C18/30°C
22°C17/29°C
16°C13/17°C
16°C14/18°C
19°C16/28°C
16°C12/20°C
14°C11/18°C
14°C10/19°C
17°C11/25°C
20°C15/26°C
18°C15/20°C
17°C13/22°C
19°C14/27°C
15°C12/18°C
14°C12/16°C
15°C10/22°C
15°C11/20°C
15°C13/17°C
18°C13/22°C
--°C/°C
41AQI
36AQI
41AQI
37AQI
2025 Days Vs Air Quality
Kamiyoshida, Yamanashi, Japan
86%
239
14%
39
Total number of days with different AQI categories in last 279 days in 2025 (86 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 279 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
Kamiyoshida, Yamanashi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
29AQI
32AQI
29AQI
31AQI
38AQI
29AQI
33AQI
29AQI
27AQI
28AQI
33AQI
28AQI
34AQI
33AQI
32AQI
31AQI
34AQI
44AQI
39AQI
47AQI
36AQI
50AQI
56AQI
46AQI
39AQI
36AQI
35AQI
38AQI
34AQI
34AQI
44AQI
35AQI
42AQI
32AQI
35AQI
30AQI
34AQI
32AQI
30AQI
30AQI
31AQI
33AQI
32AQI
33AQI
32AQI
37AQI
37AQI
34AQI
32AQI
31AQI
32AQI
31AQI
34AQI
32AQI
35AQI
35AQI
41AQI
46AQI
46AQI
53AQI
39AQI
38AQI
36AQI
31AQI
35AQI
34AQI
36AQI
40AQI
40AQI
40AQI
43AQI
52AQI
43AQI
30AQI
28AQI
28AQI
22AQI
31AQI
40AQI
49AQI
55AQI
61AQI
72AQI
92AQI
72AQI
48AQI
37AQI
46AQI
32AQI
27AQI
23AQI
21AQI
23AQI
30AQI
24AQI
32AQI
36AQI
40AQI
45AQI
37AQI
45AQI
26AQI
36AQI
22AQI
27AQI
41AQI
53AQI
60AQI
52AQI
45AQI
44AQI
28AQI
28AQI
37AQI
45AQI
44AQI
40AQI
32AQI
41AQI
39AQI
27AQI
26AQI
37AQI
38AQI
28AQI
29AQI
33AQI
30AQI
23AQI
28AQI
28AQI
34AQI
38AQI
37AQI
44AQI
31AQI
42AQI
45AQI
61AQI
58AQI
46AQI
45AQI
43AQI
29AQI
30AQI
28AQI
32AQI
37AQI
21AQI
21AQI
23AQI
32AQI
23AQI
28AQI
36AQI
45AQI
48AQI
55AQI
46AQI
30AQI
28AQI
42AQI
47AQI
37AQI
31AQI
46AQI
50AQI
54AQI
57AQI
55AQI
53AQI
54AQI
38AQI
38AQI
30AQI
32AQI
43AQI
45AQI
49AQI
52AQI
48AQI
50AQI
52AQI
53AQI
55AQI
60AQI
68AQI
70AQI
79AQI
63AQI
45AQI
49AQI
51AQI
41AQI
36AQI
46AQI
41AQI
37AQI
36AQI
38AQI
41AQI
40AQI
43AQI
44AQI
42AQI
35AQI
34AQI
42AQI
44AQI
42AQI
39AQI
39AQI
43AQI
47AQI
58AQI
53AQI
50AQI
46AQI
45AQI
49AQI
39AQI
36AQI
36AQI
39AQI
46AQI
49AQI
46AQI
45AQI
45AQI
47AQI
50AQI
47AQI
49AQI
47AQI
54AQI
56AQI
56AQI
51AQI
48AQI
51AQI
54AQI
54AQI
44AQI
41AQI
38AQI
31AQI
34AQI
33AQI
32AQI
39AQI
42AQI
41AQI
32AQI
32AQI
41AQI
41AQI
43AQI
49AQI
49AQI
46AQI
34AQI
31AQI
31AQI
29AQI
30AQI
34AQI
36AQI
33AQI
40AQI
34AQI
30AQI
32AQI
25AQI
40AQI
42AQI
50AQI
52AQI
35AQI
34AQI
44AQI
36AQI
35AQI
42AQI
47AQI
48AQI
37AQI
42AQI
No. of days
202540AQI
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
February34AQI
202434AQI
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
October26AQI
202334AQI
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
January28AQI
202232AQI
Highest AQI recorded in
May41AQI
Lowest AQI recorded in
August18AQI
202130AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
January22AQI
202028AQI
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
July17AQI
Most & Least Polluted Years Over the Last 6 Years
Kamiyoshida's annual 2025 AQI (40) shows an average percentage change of 26.2% (worsened AQI) compared to previous years: 2020 (28), 2021 (30), 2022 (32), 2023 (34), 2024 (34).