Minamiozuma, Nagano, 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
Minamiozuma, Nagano, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Minamiozuma, Nagano, Japan
4 AM6th Aug 2026
7 PM
3 AM7th Aug 2026
32AQI
26AQI
26AQI
22AQI
In the last 24 hours,
Minamiozuma's AQI reached its highest point of 32 at 11 AM during the Day, while the lowest point, 22, was recorded at 1 AM during the Night between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Minamiozuma, Nagano, Japan
23°C17/31°C
24°C16/34°C
22°C16/29°C
21°C16/28°C
20°C16/26°C
23°C15/32°C
25°C16/35°C
24°C17/32°C
23°C18/29°C
22°C17/27°C
23°C17/32°C
24°C17/33°C
24°C17/33°C
25°C17/34°C
24°C16/34°C
24°C16/33°C
23°C16/33°C
22°C16/29°C
21°C14/30°C
19°C14/28°C
20°C14/30°C
23°C15/32°C
22°C16/32°C
23°C16/32°C
23°C16/32°C
23°C18/29°C
22°C15/30°C
22°C13/33°C
22°C15/33°C
22°C16/32°C
36AQI
31AQI
35AQI
33AQI
2026 Days Vs Air Quality
Minamiozuma, Nagano, Japan
83%
181
17%
38
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 219 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
Minamiozuma, Nagano, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI (US)
20AQI (US)
30AQI (US)
36AQI (US)
30AQI (US)
24AQI (US)
38AQI (US)
28AQI (US)
28AQI (US)
44AQI (US)
30AQI (US)
19AQI (US)
26AQI (US)
12AQI (US)
37AQI (US)
43AQI (US)
53AQI (US)
32AQI (US)
54AQI (US)
30AQI (US)
25AQI (US)
22AQI (US)
27AQI (US)
38AQI (US)
40AQI (US)
24AQI (US)
40AQI (US)
26AQI (US)
30AQI (US)
42AQI (US)
20AQI (US)
32AQI (US)
42AQI (US)
29AQI (US)
28AQI (US)
49AQI (US)
50AQI (US)
12AQI (US)
10AQI (US)
31AQI (US)
36AQI (US)
40AQI (US)
49AQI (US)
64AQI (US)
60AQI (US)
56AQI (US)
53AQI (US)
22AQI (US)
23AQI (US)
15AQI (US)
28AQI (US)
52AQI (US)
40AQI (US)
32AQI (US)
42AQI (US)
22AQI (US)
12AQI (US)
20AQI (US)
14AQI (US)
20AQI (US)
68AQI (US)
43AQI (US)
52AQI (US)
59AQI (US)
54AQI (US)
45AQI (US)
40AQI (US)
50AQI (US)
58AQI (US)
58AQI (US)
66AQI (US)
38AQI (US)
46AQI (US)
59AQI (US)
58AQI (US)
54AQI (US)
57AQI (US)
24AQI (US)
54AQI (US)
51AQI (US)
49AQI (US)
51AQI (US)
52AQI (US)
62AQI (US)
14AQI (US)
20AQI (US)
58AQI (US)
60AQI (US)
52AQI (US)
14AQI (US)
14AQI (US)
38AQI (US)
52AQI (US)
41AQI (US)
15AQI (US)
40AQI (US)
34AQI (US)
26AQI (US)
24AQI (US)
44AQI (US)
36AQI (US)
30AQI (US)
29AQI (US)
42AQI (US)
24AQI (US)
25AQI (US)
36AQI (US)
35AQI (US)
33AQI (US)
34AQI (US)
34AQI (US)
42AQI (US)
26AQI (US)
18AQI (US)
34AQI (US)
50AQI (US)
48AQI (US)
42AQI (US)
38AQI (US)
29AQI (US)
24AQI (US)
44AQI (US)
50AQI (US)
22AQI (US)
20AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
36AQI (US)
38AQI (US)
32AQI (US)
33AQI (US)
84AQI (US)
68AQI (US)
53AQI (US)
48AQI (US)
61AQI (US)
60AQI (US)
62AQI (US)
56AQI (US)
60AQI (US)
49AQI (US)
40AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
22AQI (US)
28AQI (US)
31AQI (US)
28AQI (US)
26AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
29AQI (US)
24AQI (US)
16AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
25AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
32AQI (US)
19AQI (US)
15AQI (US)
25AQI (US)
22AQI (US)
15AQI (US)
18AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
40AQI (US)
56AQI (US)
44AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
54AQI (US)
61AQI (US)
50AQI (US)
32AQI (US)
40AQI (US)
33AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
36AQI (US)
34AQI (US)
30AQI (US)
29AQI (US)
23AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
31AQI (US)
34AQI (US)
48AQI (US)
34AQI (US)
40AQI (US)
24AQI (US)
32AQI (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
November49AQI (US)
Lowest AQI (US) recorded in
January35AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
April48AQI (US)
Lowest AQI (US) recorded in
December30AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
October29AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
May45AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202133AQI (US)
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
January26AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
July24AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Minamiozuma's annual 2026 AQI (US) (35) shows an average percentage change of -3.2% (improved AQI (US)) compared to previous years: 2020 (32), 2021 (33), 2022 (39), 2023 (38), 2024 (35), 2025 (42).