Sumiyama, Kyoto, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Sumiyama, Kyoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 45 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Sumiyama, Kyoto, Japan
4 AM3rd Aug 2025
7 PM
3 AM4th Aug 2025
AQI
AQI
62AQI
40AQI
In the last 24 hours,
Sumiyama's AQI reached its highest point of 62 at 12 PM during the Night, while the lowest point, 40, was recorded at 3 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Sumiyama, Kyoto, Japan
28°C24/34°C
29°C23/35°C
30°C24/36°C
29°C25/35°C
28°C23/35°C
29°C23/36°C
28°C24/34°C
28°C24/34°C
27°C23/34°C
26°C22/34°C
28°C24/34°C
27°C22/31°C
23°C22/27°C
26°C22/31°C
26°C21/33°C
27°C22/34°C
28°C23/34°C
29°C24/35°C
29°C24/36°C
29°C24/36°C
29°C24/36°C
29°C23/36°C
29°C23/36°C
29°C24/36°C
30°C25/37°C
31°C25/37°C
31°C25/38°C
29°C25/35°C
29°C26/35°C
--°C/°C
--°C/°C
52AQI
42AQI
51AQI
49AQI
2025 Days Vs Air Quality
Sumiyama, Kyoto, Japan
71%
151
29%
63
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2025, 71% of 215 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
Sumiyama, Kyoto, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
43AQI
34AQI
33AQI
34AQI
42AQI
36AQI
34AQI
33AQI
27AQI
27AQI
39AQI
41AQI
55AQI
45AQI
40AQI
38AQI
36AQI
38AQI
46AQI
38AQI
58AQI
70AQI
62AQI
46AQI
42AQI
47AQI
38AQI
36AQI
40AQI
80AQI
77AQI
53AQI
59AQI
42AQI
41AQI
34AQI
40AQI
31AQI
32AQI
31AQI
30AQI
43AQI
32AQI
42AQI
29AQI
53AQI
41AQI
39AQI
34AQI
30AQI
30AQI
32AQI
36AQI
35AQI
40AQI
44AQI
64AQI
64AQI
67AQI
90AQI
47AQI
46AQI
34AQI
40AQI
34AQI
41AQI
37AQI
40AQI
37AQI
38AQI
50AQI
43AQI
40AQI
23AQI
32AQI
30AQI
29AQI
45AQI
59AQI
63AQI
73AQI
76AQI
74AQI
92AQI
74AQI
49AQI
44AQI
35AQI
38AQI
30AQI
30AQI
22AQI
26AQI
40AQI
40AQI
48AQI
49AQI
50AQI
56AQI
54AQI
52AQI
33AQI
49AQI
27AQI
47AQI
49AQI
62AQI
61AQI
52AQI
44AQI
50AQI
27AQI
28AQI
67AQI
56AQI
63AQI
50AQI
57AQI
66AQI
58AQI
43AQI
48AQI
40AQI
43AQI
26AQI
30AQI
32AQI
37AQI
31AQI
36AQI
50AQI
56AQI
60AQI
55AQI
57AQI
44AQI
52AQI
55AQI
67AQI
47AQI
39AQI
54AQI
38AQI
27AQI
30AQI
29AQI
31AQI
40AQI
37AQI
40AQI
44AQI
52AQI
30AQI
49AQI
45AQI
48AQI
55AQI
66AQI
45AQI
31AQI
34AQI
42AQI
45AQI
33AQI
29AQI
39AQI
41AQI
50AQI
55AQI
56AQI
55AQI
53AQI
49AQI
44AQI
43AQI
42AQI
50AQI
47AQI
49AQI
54AQI
59AQI
74AQI
85AQI
92AQI
90AQI
81AQI
71AQI
75AQI
81AQI
66AQI
61AQI
59AQI
57AQI
49AQI
53AQI
56AQI
45AQI
47AQI
43AQI
39AQI
36AQI
36AQI
39AQI
36AQI
33AQI
29AQI
28AQI
29AQI
35AQI
37AQI
39AQI
43AQI
45AQI
42AQI
41AQI
49AQI
46AQI
43AQI
46AQI
54AQI
44AQI
No. of days
202546AQI
Highest AQI recorded in
July54AQI
Lowest AQI recorded in
February41AQI
202438AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August34AQI
202341AQI
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August29AQI
202242AQI
Highest AQI recorded in
March53AQI
Lowest AQI recorded in
August29AQI
202145AQI
Highest AQI recorded in
November52AQI
Lowest AQI recorded in
August38AQI
202044AQI
Highest AQI recorded in
August63AQI
Lowest AQI recorded in
September35AQI
Most & Least Polluted Years Over the Last 6 Years
Sumiyama's annual 2025 AQI (46) shows an average percentage change of 10.004% (worsened AQI) compared to previous years: 2020 (44), 2021 (45), 2022 (42), 2023 (41), 2024 (38).