Ishinari, Saga, 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
Ishinari, Saga, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Ishinari, Saga, Japan
5 AM1st Aug 2025
7 PM
4 AM2nd Aug 2025
58AQI
30AQI
49AQI
29AQI
In the last 24 hours,
Ishinari's AQI reached its highest point of 58 at 10 AM during the Day, while the lowest point, 29, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ishinari, Saga, Japan
30°C26/36°C
30°C26/35°C
29°C26/34°C
30°C25/35°C
30°C25/37°C
30°C26/38°C
30°C25/37°C
30°C25/36°C
29°C27/34°C
29°C25/36°C
28°C25/34°C
25°C23/28°C
26°C22/30°C
27°C23/32°C
28°C24/35°C
25°C24/25°C
26°C23/32°C
28°C23/34°C
29°C25/35°C
30°C25/36°C
30°C26/37°C
30°C25/37°C
31°C26/37°C
30°C26/36°C
30°C26/36°C
31°C25/38°C
32°C25/39°C
32°C26/38°C
31°C25/39°C
32°C26/38°C
--°C/°C
47AQI
44AQI
48AQI
44AQI
2025 Days Vs Air Quality
Ishinari, Saga, Japan
71%
151
29%
62
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2025, 71% of 214 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
Ishinari, Saga, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38AQI
41AQI
35AQI
45AQI
48AQI
61AQI
35AQI
43AQI
29AQI
35AQI
33AQI
37AQI
42AQI
48AQI
43AQI
45AQI
53AQI
54AQI
55AQI
65AQI
80AQI
88AQI
73AQI
80AQI
49AQI
47AQI
41AQI
36AQI
33AQI
42AQI
47AQI
42AQI
37AQI
43AQI
31AQI
38AQI
30AQI
37AQI
30AQI
32AQI
31AQI
43AQI
39AQI
35AQI
43AQI
31AQI
43AQI
37AQI
35AQI
33AQI
35AQI
35AQI
39AQI
40AQI
36AQI
41AQI
44AQI
67AQI
58AQI
59AQI
39AQI
42AQI
30AQI
33AQI
30AQI
34AQI
40AQI
44AQI
49AQI
46AQI
54AQI
54AQI
38AQI
35AQI
31AQI
49AQI
44AQI
39AQI
54AQI
53AQI
64AQI
61AQI
52AQI
63AQI
60AQI
51AQI
62AQI
51AQI
40AQI
42AQI
39AQI
34AQI
34AQI
37AQI
42AQI
42AQI
44AQI
41AQI
53AQI
44AQI
56AQI
52AQI
50AQI
53AQI
34AQI
51AQI
44AQI
52AQI
54AQI
45AQI
47AQI
41AQI
30AQI
40AQI
54AQI
49AQI
55AQI
45AQI
53AQI
55AQI
49AQI
40AQI
42AQI
40AQI
43AQI
33AQI
36AQI
51AQI
31AQI
40AQI
46AQI
53AQI
55AQI
61AQI
59AQI
67AQI
41AQI
52AQI
54AQI
44AQI
35AQI
36AQI
43AQI
26AQI
34AQI
36AQI
44AQI
50AQI
50AQI
48AQI
42AQI
52AQI
58AQI
35AQI
48AQI
53AQI
61AQI
72AQI
74AQI
66AQI
40AQI
50AQI
47AQI
46AQI
31AQI
31AQI
31AQI
31AQI
35AQI
40AQI
36AQI
27AQI
20AQI
19AQI
25AQI
27AQI
31AQI
32AQI
35AQI
39AQI
47AQI
67AQI
80AQI
72AQI
77AQI
63AQI
52AQI
51AQI
58AQI
64AQI
61AQI
46AQI
44AQI
43AQI
40AQI
47AQI
58AQI
60AQI
36AQI
37AQI
35AQI
39AQI
47AQI
48AQI
31AQI
30AQI
26AQI
23AQI
26AQI
31AQI
33AQI
34AQI
42AQI
48AQI
39AQI
47AQI
46AQI
45AQI
41AQI
47AQI
42AQI
No. of days
202545AQI
Highest AQI recorded in
January48AQI
Lowest AQI recorded in
February39AQI
202442AQI
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
July31AQI
202348AQI
Highest AQI recorded in
May56AQI
Lowest AQI recorded in
September39AQI
202249AQI
Highest AQI recorded in
August76AQI
Lowest AQI recorded in
September44AQI
202146AQI
Highest AQI recorded in
June57AQI
Lowest AQI recorded in
August38AQI
202040AQI
Highest AQI recorded in
May51AQI
Lowest AQI recorded in
July27AQI
Most & Least Polluted Years Over the Last 6 Years
Ishinari's annual 2025 AQI (45) shows an average percentage change of 0.05% (worsened AQI) compared to previous years: 2020 (40), 2021 (46), 2022 (49), 2023 (48), 2024 (42).