Hirara, Ishigaki, Okinawa, 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
Hirara, Ishigaki, Okinawa, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Hirara, Ishigaki, Okinawa, Japan
6 AM2nd Aug 2025
7 PM
5 AM3rd Aug 2025
AQI
AQI
53AQI
27AQI
In the last 24 hours,
Hirara's AQI reached its highest point of 53 at 12 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hirara, Ishigaki, Okinawa, Japan
29°C29/30°C
29°C29/30°C
28°C26/29°C
29°C27/30°C
29°C28/29°C
29°C28/29°C
28°C27/29°C
28°C27/29°C
29°C29/29°C
29°C29/29°C
29°C28/29°C
29°C29/29°C
29°C28/29°C
29°C28/29°C
28°C27/29°C
28°C28/29°C
28°C28/28°C
28°C28/29°C
28°C28/29°C
28°C28/29°C
28°C27/28°C
28°C28/28°C
29°C28/29°C
28°C27/28°C
28°C28/29°C
28°C28/29°C
28°C28/28°C
29°C28/30°C
29°C29/30°C
--°C/°C
--°C/°C
37AQI
32AQI
37AQI
37AQI
2025 Days Vs Air Quality
Hirara, Ishigaki, Okinawa, Japan
79%
169
21%
45
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2025, 79% 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
Hirara, Ishigaki, Okinawa, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
56AQI
41AQI
46AQI
55AQI
53AQI
59AQI
52AQI
42AQI
49AQI
37AQI
39AQI
39AQI
45AQI
44AQI
48AQI
39AQI
40AQI
38AQI
37AQI
39AQI
49AQI
50AQI
50AQI
44AQI
49AQI
50AQI
51AQI
49AQI
43AQI
45AQI
41AQI
32AQI
33AQI
31AQI
49AQI
45AQI
48AQI
40AQI
41AQI
33AQI
34AQI
31AQI
39AQI
30AQI
35AQI
32AQI
37AQI
56AQI
47AQI
54AQI
53AQI
42AQI
39AQI
34AQI
48AQI
38AQI
47AQI
45AQI
44AQI
43AQI
46AQI
51AQI
36AQI
37AQI
33AQI
38AQI
33AQI
39AQI
37AQI
48AQI
48AQI
51AQI
43AQI
36AQI
41AQI
53AQI
52AQI
57AQI
51AQI
60AQI
59AQI
50AQI
56AQI
56AQI
51AQI
51AQI
52AQI
42AQI
39AQI
37AQI
36AQI
42AQI
45AQI
53AQI
53AQI
58AQI
61AQI
58AQI
57AQI
47AQI
51AQI
45AQI
68AQI
63AQI
64AQI
60AQI
55AQI
51AQI
39AQI
42AQI
57AQI
47AQI
49AQI
44AQI
40AQI
38AQI
35AQI
42AQI
39AQI
47AQI
46AQI
57AQI
57AQI
51AQI
42AQI
48AQI
55AQI
56AQI
41AQI
33AQI
33AQI
43AQI
36AQI
38AQI
34AQI
31AQI
30AQI
29AQI
31AQI
29AQI
31AQI
33AQI
33AQI
31AQI
43AQI
43AQI
40AQI
37AQI
29AQI
49AQI
53AQI
51AQI
47AQI
39AQI
33AQI
34AQI
29AQI
35AQI
28AQI
31AQI
31AQI
34AQI
34AQI
37AQI
54AQI
49AQI
44AQI
36AQI
31AQI
30AQI
30AQI
34AQI
54AQI
36AQI
32AQI
29AQI
27AQI
25AQI
24AQI
24AQI
25AQI
26AQI
34AQI
41AQI
33AQI
28AQI
25AQI
30AQI
40AQI
37AQI
34AQI
35AQI
41AQI
44AQI
44AQI
46AQI
44AQI
40AQI
36AQI
39AQI
34AQI
32AQI
32AQI
32AQI
33AQI
30AQI
28AQI
33AQI
31AQI
32AQI
41AQI
40AQI
39AQI
41AQI
46AQI
41AQI
46AQI
50AQI
40AQI
35AQI
35AQI
40AQI
No. of days
202542AQI
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
June35AQI
202433AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
September25AQI
202329AQI
Highest AQI recorded in
October40AQI
Lowest AQI recorded in
June14AQI
202227AQI
Highest AQI recorded in
September39AQI
Lowest AQI recorded in
July11AQI
202130AQI
Highest AQI recorded in
April40AQI
Lowest AQI recorded in
August21AQI
202025AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
July11AQI
Most & Least Polluted Years Over the Last 6 Years
Hirara's annual 2025 AQI (42) shows an average percentage change of 46.6% (worsened AQI) compared to previous years: 2020 (25), 2021 (30), 2022 (27), 2023 (29), 2024 (33).