Kashiwa, Chiba, 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
Kashiwa, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (5th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 4th Aug - 5th Aug 2026
Kashiwa, Chiba, Japan
4 AM4th Aug 2026
6 PM
3 AM5th Aug 2026
25AQI
21AQI
25AQI
22AQI
In the last 24 hours,
Kashiwa's AQI reached its highest point of 25 at 5 AM during the Day, while the lowest point, 21, was recorded at 7 AM during the Day between 4th Aug and 5th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Kashiwa, Chiba, Japan
24°C20/29°C
25°C21/30°C
26°C22/31°C
27°C23/31°C
26°C23/30°C
25°C24/28°C
27°C24/32°C
28°C24/33°C
29°C26/34°C
30°C26/35°C
28°C26/30°C
27°C25/31°C
28°C24/31°C
30°C26/36°C
31°C27/37°C
31°C27/37°C
31°C28/37°C
29°C26/34°C
28°C23/34°C
28°C24/32°C
26°C23/30°C
26°C23/30°C
29°C24/35°C
31°C26/36°C
30°C27/35°C
30°C26/36°C
28°C24/33°C
24°C23/27°C
24°C22/28°C
26°C22/30°C
35AQI
32AQI
36AQI
32AQI
2026 Days Vs Air Quality
Kashiwa, Chiba, Japan
87%
189
13%
28
Total number of days with different AQI categories in last 217 days in 2026 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 217 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
Kashiwa, Chiba, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
14AQI (US)
23AQI (US)
20AQI (US)
23AQI (US)
43AQI (US)
13AQI (US)
36AQI (US)
40AQI (US)
16AQI (US)
34AQI (US)
31AQI (US)
19AQI (US)
42AQI (US)
13AQI (US)
26AQI (US)
50AQI (US)
49AQI (US)
26AQI (US)
46AQI (US)
43AQI (US)
12AQI (US)
24AQI (US)
38AQI (US)
35AQI (US)
12AQI (US)
18AQI (US)
38AQI (US)
33AQI (US)
18AQI (US)
26AQI (US)
36AQI (US)
38AQI (US)
44AQI (US)
29AQI (US)
40AQI (US)
60AQI (US)
57AQI (US)
18AQI (US)
10AQI (US)
33AQI (US)
41AQI (US)
59AQI (US)
28AQI (US)
44AQI (US)
58AQI (US)
69AQI (US)
60AQI (US)
15AQI (US)
31AQI (US)
29AQI (US)
33AQI (US)
39AQI (US)
36AQI (US)
41AQI (US)
41AQI (US)
33AQI (US)
17AQI (US)
42AQI (US)
42AQI (US)
35AQI (US)
65AQI (US)
43AQI (US)
53AQI (US)
56AQI (US)
51AQI (US)
46AQI (US)
39AQI (US)
50AQI (US)
58AQI (US)
58AQI (US)
66AQI (US)
39AQI (US)
46AQI (US)
50AQI (US)
35AQI (US)
28AQI (US)
41AQI (US)
37AQI (US)
26AQI (US)
49AQI (US)
50AQI (US)
50AQI (US)
43AQI (US)
48AQI (US)
30AQI (US)
25AQI (US)
49AQI (US)
54AQI (US)
54AQI (US)
21AQI (US)
23AQI (US)
32AQI (US)
46AQI (US)
46AQI (US)
38AQI (US)
28AQI (US)
28AQI (US)
22AQI (US)
31AQI (US)
47AQI (US)
38AQI (US)
30AQI (US)
34AQI (US)
39AQI (US)
38AQI (US)
34AQI (US)
35AQI (US)
31AQI (US)
32AQI (US)
34AQI (US)
39AQI (US)
46AQI (US)
38AQI (US)
32AQI (US)
45AQI (US)
51AQI (US)
48AQI (US)
42AQI (US)
38AQI (US)
38AQI (US)
48AQI (US)
49AQI (US)
44AQI (US)
30AQI (US)
22AQI (US)
30AQI (US)
30AQI (US)
25AQI (US)
26AQI (US)
30AQI (US)
28AQI (US)
34AQI (US)
38AQI (US)
35AQI (US)
35AQI (US)
86AQI (US)
68AQI (US)
53AQI (US)
49AQI (US)
61AQI (US)
58AQI (US)
61AQI (US)
53AQI (US)
58AQI (US)
47AQI (US)
39AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
30AQI (US)
29AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
35AQI (US)
47AQI (US)
14AQI (US)
20AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
21AQI (US)
27AQI (US)
29AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
31AQI (US)
21AQI (US)
18AQI (US)
41AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
17AQI (US)
21AQI (US)
27AQI (US)
32AQI (US)
31AQI (US)
30AQI (US)
67AQI (US)
50AQI (US)
19AQI (US)
20AQI (US)
28AQI (US)
45AQI (US)
68AQI (US)
62AQI (US)
31AQI (US)
28AQI (US)
31AQI (US)
25AQI (US)
25AQI (US)
34AQI (US)
35AQI (US)
45AQI (US)
58AQI (US)
43AQI (US)
17AQI (US)
23AQI (US)
24AQI (US)
29AQI (US)
39AQI (US)
45AQI (US)
37AQI (US)
41AQI (US)
24AQI (US)
33AQI (US)
33AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
December50AQI (US)
Lowest AQI (US) recorded in
May34AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
July49AQI (US)
Lowest AQI (US) recorded in
September31AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
April47AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
March44AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202138AQI (US)
Highest AQI (US) recorded in
December46AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202036AQI (US)
Highest AQI (US) recorded in
November46AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Kashiwa's annual 2026 AQI (US) (35) shows an average percentage change of -9.7% (improved AQI (US)) compared to previous years: 2020 (36), 2021 (38), 2022 (39), 2023 (40), 2024 (39), 2025 (41).