Ishioka, Ibaraki, 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
Ishioka, Ibaraki, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (10th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 26 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 9th Aug - 10th Aug 2026
Ishioka, Ibaraki, Japan
4 AM9th Aug 2026
6 PM
3 AM10th Aug 2026
52AQI
21AQI
53AQI
21AQI
In the last 24 hours,
Ishioka's AQI reached its highest point of 53 at 8 PM during the Night, while the lowest point, 21, was recorded at 2 AM during the Night between 9th Aug and 10th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ishioka, Ibaraki, Japan
25°C23/28°C
26°C23/33°C
28°C22/34°C
30°C25/35°C
29°C26/34°C
27°C25/30°C
26°C24/29°C
27°C24/32°C
31°C25/37°C
30°C26/37°C
31°C26/37°C
29°C25/35°C
26°C24/30°C
26°C23/30°C
26°C24/31°C
25°C22/28°C
24°C22/28°C
27°C23/33°C
29°C25/35°C
27°C25/31°C
28°C23/35°C
26°C22/29°C
23°C21/26°C
23°C20/27°C
24°C21/29°C
28°C24/32°C
29°C24/34°C
29°C24/34°C
27°C24/32°C
25°C22/29°C
36AQI
32AQI
40AQI
34AQI
2026 Days Vs Air Quality
Ishioka, Ibaraki, Japan
83%
184
17%
38
Total number of days with different AQI categories in last 222 days in 2026 (143 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 222 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
Ishioka, Ibaraki, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
15AQI (US)
16AQI (US)
14AQI (US)
26AQI (US)
39AQI (US)
24AQI (US)
28AQI (US)
38AQI (US)
20AQI (US)
31AQI (US)
26AQI (US)
14AQI (US)
37AQI (US)
12AQI (US)
30AQI (US)
48AQI (US)
42AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
12AQI (US)
22AQI (US)
34AQI (US)
39AQI (US)
44AQI (US)
28AQI (US)
39AQI (US)
32AQI (US)
19AQI (US)
24AQI (US)
36AQI (US)
37AQI (US)
32AQI (US)
21AQI (US)
26AQI (US)
53AQI (US)
54AQI (US)
14AQI (US)
12AQI (US)
36AQI (US)
26AQI (US)
55AQI (US)
33AQI (US)
37AQI (US)
62AQI (US)
74AQI (US)
53AQI (US)
18AQI (US)
37AQI (US)
30AQI (US)
31AQI (US)
37AQI (US)
39AQI (US)
40AQI (US)
37AQI (US)
32AQI (US)
11AQI (US)
42AQI (US)
44AQI (US)
35AQI (US)
68AQI (US)
43AQI (US)
59AQI (US)
59AQI (US)
51AQI (US)
38AQI (US)
15AQI (US)
41AQI (US)
58AQI (US)
60AQI (US)
67AQI (US)
40AQI (US)
48AQI (US)
58AQI (US)
58AQI (US)
55AQI (US)
57AQI (US)
37AQI (US)
34AQI (US)
41AQI (US)
50AQI (US)
53AQI (US)
46AQI (US)
46AQI (US)
23AQI (US)
21AQI (US)
48AQI (US)
56AQI (US)
54AQI (US)
32AQI (US)
16AQI (US)
35AQI (US)
47AQI (US)
47AQI (US)
39AQI (US)
25AQI (US)
43AQI (US)
22AQI (US)
29AQI (US)
46AQI (US)
37AQI (US)
29AQI (US)
45AQI (US)
38AQI (US)
39AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
33AQI (US)
33AQI (US)
39AQI (US)
45AQI (US)
37AQI (US)
31AQI (US)
44AQI (US)
51AQI (US)
50AQI (US)
43AQI (US)
39AQI (US)
39AQI (US)
48AQI (US)
50AQI (US)
45AQI (US)
30AQI (US)
18AQI (US)
33AQI (US)
30AQI (US)
26AQI (US)
25AQI (US)
29AQI (US)
29AQI (US)
33AQI (US)
38AQI (US)
34AQI (US)
35AQI (US)
86AQI (US)
69AQI (US)
53AQI (US)
49AQI (US)
62AQI (US)
59AQI (US)
59AQI (US)
53AQI (US)
58AQI (US)
47AQI (US)
39AQI (US)
25AQI (US)
20AQI (US)
20AQI (US)
39AQI (US)
50AQI (US)
42AQI (US)
29AQI (US)
16AQI (US)
23AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
37AQI (US)
55AQI (US)
12AQI (US)
15AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
22AQI (US)
20AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
39AQI (US)
23AQI (US)
19AQI (US)
37AQI (US)
26AQI (US)
31AQI (US)
25AQI (US)
20AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
59AQI (US)
48AQI (US)
57AQI (US)
80AQI (US)
56AQI (US)
12AQI (US)
18AQI (US)
28AQI (US)
52AQI (US)
64AQI (US)
52AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
14AQI (US)
31AQI (US)
33AQI (US)
38AQI (US)
43AQI (US)
58AQI (US)
34AQI (US)
16AQI (US)
22AQI (US)
23AQI (US)
24AQI (US)
29AQI (US)
25AQI (US)
31AQI (US)
26AQI (US)
29AQI (US)
37AQI (US)
47AQI (US)
37AQI (US)
42AQI (US)
25AQI (US)
34AQI (US)
29AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202540AQI (US)
Highest AQI (US) recorded in
October47AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
July48AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
April43AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
202236AQI (US)
Highest AQI (US) recorded in
April42AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202133AQI (US)
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
April28AQI (US)
202035AQI (US)
Highest AQI (US) recorded in
December48AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Ishioka's annual 2026 AQI (US) (35) shows an average percentage change of -3.7% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (33), 2022 (36), 2023 (38), 2024 (37), 2025 (40).