Shiroishi, Chichibu, Saitama, 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
Shiroishi, Chichibu, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 27 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Shiroishi, Chichibu, Saitama, Japan
4 AM16th Aug 2026
6 PM
3 AM17th Aug 2026
25AQI
21AQI
46AQI
23AQI
In the last 24 hours,
Shiroishi's AQI reached its highest point of 46 at 10 PM during the Night, while the lowest point, 21, was recorded at 4 PM during the Day between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Shiroishi, Chichibu, Saitama, Japan
28°C23/34°C
31°C25/36°C
31°C26/37°C
31°C26/37°C
31°C26/37°C
29°C25/33°C
28°C24/35°C
27°C24/31°C
26°C22/31°C
24°C22/27°C
27°C20/35°C
28°C23/35°C
29°C24/35°C
31°C25/36°C
29°C24/36°C
23°C22/24°C
24°C21/30°C
26°C20/31°C
28°C24/33°C
29°C24/34°C
28°C25/34°C
27°C23/32°C
26°C23/32°C
23°C20/28°C
21°C20/22°C
24°C21/28°C
24°C22/27°C
25°C23/29°C
25°C22/29°C
13°C11/16°C
33AQI
29AQI
34AQI
30AQI
2026 Days Vs Air Quality
Shiroishi, Chichibu, Saitama, Japan
85%
195
15%
34
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2026, 85% of 229 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
Shiroishi, Chichibu, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
13AQI (US)
14AQI (US)
18AQI (US)
23AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
13AQI (US)
22AQI (US)
30AQI (US)
12AQI (US)
22AQI (US)
15AQI (US)
32AQI (US)
44AQI (US)
41AQI (US)
25AQI (US)
47AQI (US)
31AQI (US)
12AQI (US)
24AQI (US)
50AQI (US)
52AQI (US)
42AQI (US)
27AQI (US)
43AQI (US)
25AQI (US)
20AQI (US)
36AQI (US)
34AQI (US)
42AQI (US)
51AQI (US)
30AQI (US)
47AQI (US)
49AQI (US)
49AQI (US)
14AQI (US)
16AQI (US)
41AQI (US)
45AQI (US)
47AQI (US)
33AQI (US)
48AQI (US)
65AQI (US)
56AQI (US)
38AQI (US)
16AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
37AQI (US)
37AQI (US)
41AQI (US)
37AQI (US)
46AQI (US)
9AQI (US)
25AQI (US)
48AQI (US)
51AQI (US)
86AQI (US)
51AQI (US)
58AQI (US)
63AQI (US)
52AQI (US)
49AQI (US)
48AQI (US)
54AQI (US)
59AQI (US)
59AQI (US)
73AQI (US)
45AQI (US)
41AQI (US)
13AQI (US)
31AQI (US)
58AQI (US)
59AQI (US)
33AQI (US)
13AQI (US)
45AQI (US)
60AQI (US)
60AQI (US)
46AQI (US)
48AQI (US)
14AQI (US)
14AQI (US)
42AQI (US)
54AQI (US)
39AQI (US)
30AQI (US)
10AQI (US)
21AQI (US)
47AQI (US)
57AQI (US)
27AQI (US)
27AQI (US)
39AQI (US)
24AQI (US)
33AQI (US)
48AQI (US)
37AQI (US)
36AQI (US)
37AQI (US)
48AQI (US)
46AQI (US)
29AQI (US)
31AQI (US)
36AQI (US)
40AQI (US)
39AQI (US)
41AQI (US)
46AQI (US)
35AQI (US)
31AQI (US)
45AQI (US)
51AQI (US)
48AQI (US)
42AQI (US)
39AQI (US)
38AQI (US)
43AQI (US)
51AQI (US)
49AQI (US)
29AQI (US)
20AQI (US)
35AQI (US)
36AQI (US)
28AQI (US)
28AQI (US)
35AQI (US)
37AQI (US)
42AQI (US)
45AQI (US)
41AQI (US)
52AQI (US)
86AQI (US)
68AQI (US)
53AQI (US)
49AQI (US)
61AQI (US)
58AQI (US)
59AQI (US)
54AQI (US)
58AQI (US)
48AQI (US)
40AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
26AQI (US)
30AQI (US)
38AQI (US)
36AQI (US)
24AQI (US)
14AQI (US)
22AQI (US)
23AQI (US)
19AQI (US)
18AQI (US)
21AQI (US)
20AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
30AQI (US)
17AQI (US)
15AQI (US)
19AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
29AQI (US)
20AQI (US)
13AQI (US)
37AQI (US)
18AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
32AQI (US)
31AQI (US)
30AQI (US)
26AQI (US)
34AQI (US)
31AQI (US)
51AQI (US)
60AQI (US)
58AQI (US)
38AQI (US)
22AQI (US)
26AQI (US)
24AQI (US)
29AQI (US)
22AQI (US)
27AQI (US)
50AQI (US)
49AQI (US)
38AQI (US)
25AQI (US)
23AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
26AQI (US)
21AQI (US)
17AQI (US)
15AQI (US)
22AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
38AQI (US)
47AQI (US)
38AQI (US)
43AQI (US)
23AQI (US)
31AQI (US)
26AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202538AQI (US)
Highest AQI (US) recorded in
July49AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
April44AQI (US)
Lowest AQI (US) recorded in
October27AQI (US)
202336AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202235AQI (US)
Highest AQI (US) recorded in
March42AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
202131AQI (US)
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
January24AQI (US)
202035AQI (US)
Highest AQI (US) recorded in
August64AQI (US)
Lowest AQI (US) recorded in
December24AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Shiroishi's annual 2026 AQI (US) (35) shows an average percentage change of 0.3% (worsened AQI (US)) compared to previous years: 2020 (35), 2021 (31), 2022 (35), 2023 (36), 2024 (35), 2025 (38).