Higashi Matsuyama, 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
Higashi Matsuyama, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Higashi Matsuyama, Saitama, Japan
4 AM14th Aug 2026
6 PM
3 AM15th Aug 2026
25AQI
8AQI
28AQI
8AQI
In the last 24 hours,
Higashi Matsuyama's AQI reached its highest point of 28 at 12 AM during the Night, while the lowest point, 8, was recorded at 4 PM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Higashi Matsuyama, Saitama, Japan
28°C26/31°C
27°C25/29°C
29°C25/34°C
32°C27/38°C
33°C29/39°C
33°C28/39°C
32°C28/38°C
29°C27/34°C
29°C25/36°C
28°C26/33°C
27°C24/32°C
26°C23/30°C
29°C23/36°C
31°C26/37°C
31°C26/36°C
32°C27/37°C
30°C24/36°C
24°C23/26°C
25°C22/31°C
27°C22/32°C
29°C26/34°C
30°C26/35°C
30°C27/36°C
29°C24/33°C
27°C24/32°C
24°C21/28°C
22°C22/24°C
25°C22/29°C
25°C23/29°C
26°C24/30°C
33AQI
28AQI
34AQI
30AQI
2026 Days Vs Air Quality
Higashi Matsuyama, Saitama, Japan
87%
197
13%
30
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 227 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
Higashi Matsuyama, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
21AQI (US)
22AQI (US)
28AQI (US)
38AQI (US)
22AQI (US)
36AQI (US)
34AQI (US)
26AQI (US)
39AQI (US)
40AQI (US)
14AQI (US)
26AQI (US)
16AQI (US)
35AQI (US)
41AQI (US)
50AQI (US)
26AQI (US)
50AQI (US)
30AQI (US)
15AQI (US)
28AQI (US)
37AQI (US)
39AQI (US)
44AQI (US)
26AQI (US)
36AQI (US)
28AQI (US)
24AQI (US)
36AQI (US)
37AQI (US)
36AQI (US)
42AQI (US)
28AQI (US)
38AQI (US)
52AQI (US)
44AQI (US)
12AQI (US)
16AQI (US)
34AQI (US)
35AQI (US)
48AQI (US)
23AQI (US)
43AQI (US)
62AQI (US)
66AQI (US)
38AQI (US)
16AQI (US)
37AQI (US)
30AQI (US)
34AQI (US)
42AQI (US)
45AQI (US)
43AQI (US)
44AQI (US)
40AQI (US)
10AQI (US)
28AQI (US)
44AQI (US)
34AQI (US)
68AQI (US)
44AQI (US)
57AQI (US)
58AQI (US)
52AQI (US)
47AQI (US)
44AQI (US)
52AQI (US)
59AQI (US)
60AQI (US)
66AQI (US)
39AQI (US)
38AQI (US)
14AQI (US)
28AQI (US)
56AQI (US)
62AQI (US)
40AQI (US)
33AQI (US)
50AQI (US)
56AQI (US)
56AQI (US)
48AQI (US)
66AQI (US)
30AQI (US)
22AQI (US)
48AQI (US)
58AQI (US)
60AQI (US)
39AQI (US)
18AQI (US)
22AQI (US)
47AQI (US)
55AQI (US)
34AQI (US)
22AQI (US)
44AQI (US)
23AQI (US)
32AQI (US)
50AQI (US)
39AQI (US)
30AQI (US)
32AQI (US)
40AQI (US)
40AQI (US)
36AQI (US)
36AQI (US)
33AQI (US)
34AQI (US)
36AQI (US)
40AQI (US)
48AQI (US)
36AQI (US)
32AQI (US)
46AQI (US)
52AQI (US)
48AQI (US)
43AQI (US)
40AQI (US)
39AQI (US)
49AQI (US)
51AQI (US)
45AQI (US)
29AQI (US)
22AQI (US)
30AQI (US)
30AQI (US)
28AQI (US)
25AQI (US)
30AQI (US)
30AQI (US)
36AQI (US)
39AQI (US)
33AQI (US)
36AQI (US)
85AQI (US)
68AQI (US)
53AQI (US)
48AQI (US)
61AQI (US)
59AQI (US)
60AQI (US)
54AQI (US)
58AQI (US)
48AQI (US)
40AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
29AQI (US)
30AQI (US)
18AQI (US)
22AQI (US)
22AQI (US)
20AQI (US)
21AQI (US)
20AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
33AQI (US)
17AQI (US)
19AQI (US)
23AQI (US)
26AQI (US)
28AQI (US)
22AQI (US)
19AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
26AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
26AQI (US)
23AQI (US)
18AQI (US)
44AQI (US)
22AQI (US)
34AQI (US)
28AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
30AQI (US)
34AQI (US)
30AQI (US)
34AQI (US)
40AQI (US)
30AQI (US)
27AQI (US)
26AQI (US)
40AQI (US)
58AQI (US)
49AQI (US)
38AQI (US)
32AQI (US)
26AQI (US)
24AQI (US)
32AQI (US)
31AQI (US)
26AQI (US)
39AQI (US)
40AQI (US)
35AQI (US)
22AQI (US)
25AQI (US)
28AQI (US)
26AQI (US)
33AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
34AQI (US)
32AQI (US)
28AQI (US)
15AQI (US)
22AQI (US)
31AQI (US)
37AQI (US)
48AQI (US)
38AQI (US)
41AQI (US)
24AQI (US)
31AQI (US)
28AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
October53AQI (US)
Lowest AQI (US) recorded in
September35AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
April51AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202241AQI (US)
Highest AQI (US) recorded in
March49AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
202143AQI (US)
Highest AQI (US) recorded in
October52AQI (US)
Lowest AQI (US) recorded in
December37AQI (US)
202040AQI (US)
Highest AQI (US) recorded in
August50AQI (US)
Lowest AQI (US) recorded in
September31AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Higashi Matsuyama's annual 2026 AQI (US) (35) shows an average percentage change of -15.2% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (43), 2022 (41), 2023 (43), 2024 (39), 2025 (42).