Okukogamachi, Kumamoto, Kumamoto, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Okukogamachi, Kumamoto, Kumamoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (14th February):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Feb - 14th Feb 2026
Okukogamachi, Kumamoto, Kumamoto, Japan
7 AM13th Feb 2026
5 PM
6 AM14th Feb 2026
55AQI
40AQI
58AQI
36AQI
In the last 24 hours,
Okukogamachi's AQI reached its highest point of 58 at 11 PM during the Night, while the lowest point, 36, was recorded at 8 PM during the Night between 13th Feb and 14th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Okukogamachi, Kumamoto, Kumamoto, Japan
12°C10/15°C
11°C8/15°C
11°C8/14°C
11°C8/15°C
8°C5/11°C
4°C2/5°C
2°C0/4°C
4°C1/7°C
6°C3/8°C
4°C2/6°C
4°C1/7°C
6°C4/9°C
5°C3/9°C
5°C2/8°C
5°C3/7°C
5°C3/8°C
6°C4/8°C
6°C4/9°C
4°C2/6°C
7°C4/10°C
10°C8/12°C
11°C9/14°C
6°C4/9°C
1°C-1/1°C
3°C-1/8°C
6°C2/12°C
9°C6/11°C
8°C6/12°C
9°C5/13°C
9°C5/12°C
44AQI
39AQI
45AQI
41AQI
2026 Days Vs Air Quality
Okukogamachi, Kumamoto, Kumamoto, Japan
87%
39
13%
6
Total number of days with different AQI categories in last 46 days in 2026 (319 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 46 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
Okukogamachi, Kumamoto, Kumamoto, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI (US)
19AQI (US)
25AQI (US)
40AQI (US)
56AQI (US)
41AQI (US)
50AQI (US)
38AQI (US)
28AQI (US)
38AQI (US)
36AQI (US)
37AQI (US)
40AQI (US)
42AQI (US)
55AQI (US)
49AQI (US)
59AQI (US)
64AQI (US)
72AQI (US)
40AQI (US)
20AQI (US)
30AQI (US)
38AQI (US)
52AQI (US)
30AQI (US)
23AQI (US)
39AQI (US)
39AQI (US)
43AQI (US)
44AQI (US)
27AQI (US)
50AQI (US)
50AQI (US)
43AQI (US)
41AQI (US)
41AQI (US)
42AQI (US)
36AQI (US)
22AQI (US)
41AQI (US)
44AQI (US)
44AQI (US)
48AQI (US)
50AQI (US)
49AQI (US)
40AQI (US)
43AQI (US)
No. of days
202641AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
January40AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
November58AQI (US)
Lowest AQI (US) recorded in
September34AQI (US)
202442AQI (US)
Highest AQI (US) recorded in
March66AQI (US)
Lowest AQI (US) recorded in
July27AQI (US)
202344AQI (US)
Highest AQI (US) recorded in
November54AQI (US)
Lowest AQI (US) recorded in
December43AQI (US)
202023AQI (US)
Highest AQI (US) recorded in
September23AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Okukogamachi's annual 2026 AQI (US) (41) shows an average percentage change of 14.5% (worsened AQI (US)) compared to previous years: 2020 (23), 2023 (44), 2024 (42), 2025 (45).