Asahikawa, Hokkaido, 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
Asahikawa, Hokkaido, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Asahikawa, Hokkaido, Japan
4 AM6th Aug 2026
7 PM
3 AM7th Aug 2026
26AQI
22AQI
29AQI
23AQI
In the last 24 hours,
Asahikawa's AQI reached its highest point of 29 at 12 AM during the Night, while the lowest point, 22, was recorded at 7 AM during the Day between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Asahikawa, Hokkaido, Japan
22°C18/29°C
20°C18/22°C
21°C18/25°C
22°C19/26°C
22°C19/26°C
21°C18/24°C
24°C19/29°C
22°C19/26°C
24°C18/31°C
22°C19/26°C
19°C19/20°C
21°C18/26°C
22°C18/28°C
20°C16/24°C
20°C14/28°C
20°C16/25°C
17°C16/18°C
19°C15/24°C
20°C16/24°C
20°C14/26°C
19°C17/22°C
17°C16/19°C
17°C16/20°C
19°C18/22°C
20°C16/26°C
20°C14/27°C
20°C14/28°C
21°C14/29°C
22°C15/29°C
24°C17/31°C
26AQI
23AQI
25AQI
24AQI
2026 Days Vs Air Quality
Asahikawa, Hokkaido, Japan
79%
174
21%
45
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2026, 79% 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
Asahikawa, Hokkaido, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI (US)
34AQI (US)
41AQI (US)
16AQI (US)
20AQI (US)
32AQI (US)
32AQI (US)
21AQI (US)
21AQI (US)
28AQI (US)
26AQI (US)
16AQI (US)
26AQI (US)
33AQI (US)
24AQI (US)
34AQI (US)
22AQI (US)
42AQI (US)
51AQI (US)
33AQI (US)
20AQI (US)
30AQI (US)
45AQI (US)
36AQI (US)
22AQI (US)
43AQI (US)
48AQI (US)
18AQI (US)
26AQI (US)
54AQI (US)
16AQI (US)
15AQI (US)
38AQI (US)
32AQI (US)
26AQI (US)
30AQI (US)
30AQI (US)
17AQI (US)
28AQI (US)
48AQI (US)
58AQI (US)
69AQI (US)
20AQI (US)
22AQI (US)
67AQI (US)
48AQI (US)
16AQI (US)
21AQI (US)
19AQI (US)
35AQI (US)
28AQI (US)
54AQI (US)
52AQI (US)
24AQI (US)
20AQI (US)
40AQI (US)
56AQI (US)
42AQI (US)
48AQI (US)
52AQI (US)
72AQI (US)
60AQI (US)
70AQI (US)
68AQI (US)
57AQI (US)
52AQI (US)
60AQI (US)
56AQI (US)
57AQI (US)
56AQI (US)
72AQI (US)
52AQI (US)
50AQI (US)
66AQI (US)
48AQI (US)
54AQI (US)
62AQI (US)
59AQI (US)
38AQI (US)
38AQI (US)
81AQI (US)
71AQI (US)
46AQI (US)
48AQI (US)
27AQI (US)
38AQI (US)
54AQI (US)
63AQI (US)
72AQI (US)
71AQI (US)
28AQI (US)
41AQI (US)
56AQI (US)
58AQI (US)
23AQI (US)
22AQI (US)
30AQI (US)
26AQI (US)
48AQI (US)
56AQI (US)
34AQI (US)
34AQI (US)
34AQI (US)
42AQI (US)
44AQI (US)
32AQI (US)
42AQI (US)
39AQI (US)
40AQI (US)
34AQI (US)
44AQI (US)
34AQI (US)
26AQI (US)
32AQI (US)
52AQI (US)
44AQI (US)
42AQI (US)
32AQI (US)
21AQI (US)
38AQI (US)
41AQI (US)
42AQI (US)
44AQI (US)
34AQI (US)
21AQI (US)
36AQI (US)
34AQI (US)
24AQI (US)
24AQI (US)
36AQI (US)
37AQI (US)
44AQI (US)
45AQI (US)
36AQI (US)
37AQI (US)
80AQI (US)
68AQI (US)
56AQI (US)
54AQI (US)
64AQI (US)
65AQI (US)
78AQI (US)
69AQI (US)
70AQI (US)
64AQI (US)
46AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
22AQI (US)
26AQI (US)
22AQI (US)
47AQI (US)
50AQI (US)
30AQI (US)
18AQI (US)
22AQI (US)
20AQI (US)
20AQI (US)
22AQI (US)
21AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
23AQI (US)
23AQI (US)
24AQI (US)
21AQI (US)
26AQI (US)
29AQI (US)
22AQI (US)
19AQI (US)
19AQI (US)
21AQI (US)
20AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
25AQI (US)
22AQI (US)
26AQI (US)
23AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
25AQI (US)
27AQI (US)
21AQI (US)
16AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
23AQI (US)
21AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
16AQI (US)
18AQI (US)
22AQI (US)
22AQI (US)
27AQI (US)
26AQI (US)
23AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
36AQI (US)
57AQI (US)
38AQI (US)
44AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March57AQI (US)
Lowest AQI (US) recorded in
July24AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
January44AQI (US)
Lowest AQI (US) recorded in
April29AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
January42AQI (US)
Lowest AQI (US) recorded in
September21AQI (US)
202333AQI (US)
Highest AQI (US) recorded in
February47AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202129AQI (US)
Highest AQI (US) recorded in
January40AQI (US)
Lowest AQI (US) recorded in
November20AQI (US)
202027AQI (US)
Highest AQI (US) recorded in
July31AQI (US)
Lowest AQI (US) recorded in
November23AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Asahikawa's annual 2026 AQI (US) (36) shows an average percentage change of 15.4% (worsened AQI (US)) compared to previous years: 2020 (27), 2021 (29), 2022 (30), 2023 (33), 2024 (33), 2025 (37).