Okazaki, Okazaki, Aichi, 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
Okazaki, Okazaki, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (15th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 46 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Feb - 15th Feb 2026
Okazaki, Okazaki, Aichi, Japan
6 AM14th Feb 2026
5 PM
5 AM15th Feb 2026
90AQI
14AQI
62AQI
21AQI
In the last 24 hours,
Okazaki's AQI reached its highest point of 90 at 6 AM during the Day, while the lowest point, 14, was recorded at 12 PM during the Day between 14th Feb and 15th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Okazaki, Okazaki, Aichi, Japan
9°C5/14°C
8°C4/12°C
9°C4/14°C
7°C0/11°C
2°C-1/5°C
1°C-1/4°C
2°C-1/5°C
4°C1/8°C
2°C0/5°C
2°C-1/5°C
4°C1/9°C
4°C1/8°C
3°C0/6°C
2°C-1/5°C
3°C0/6°C
4°C0/8°C
4°C1/8°C
4°C1/8°C
5°C1/10°C
7°C4/12°C
8°C4/12°C
4°C2/7°C
2°C-2/3°C
2°C-2/7°C
4°C0/8°C
6°C5/8°C
5°C2/10°C
6°C2/11°C
8°C3/12°C
12°C8/17°C
54AQI
30AQI
49AQI
31AQI
2026 Days Vs Air Quality
Okazaki, Okazaki, Aichi, Japan
91%
42
9%
4
Total number of days with different AQI categories in last 47 days in 2026 (318 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 47 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Okazaki, Okazaki, Aichi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
17AQI (US)
13AQI (US)
22AQI (US)
43AQI (US)
16AQI (US)
20AQI (US)
28AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
16AQI (US)
37AQI (US)
27AQI (US)
36AQI (US)
56AQI (US)
48AQI (US)
55AQI (US)
60AQI (US)
31AQI (US)
12AQI (US)
21AQI (US)
38AQI (US)
43AQI (US)
44AQI (US)
27AQI (US)
38AQI (US)
32AQI (US)
28AQI (US)
34AQI (US)
31AQI (US)
36AQI (US)
45AQI (US)
34AQI (US)
33AQI (US)
43AQI (US)
39AQI (US)
15AQI (US)
20AQI (US)
34AQI (US)
36AQI (US)
43AQI (US)
47AQI (US)
47AQI (US)
54AQI (US)
46AQI (US)
31AQI (US)
38AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
February38AQI (US)
Lowest AQI (US) recorded in
January31AQI (US)
202534AQI (US)
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
April48AQI (US)
Lowest AQI (US) recorded in
December24AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
April50AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202238AQI (US)
Highest AQI (US) recorded in
May45AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202133AQI (US)
Highest AQI (US) recorded in
November37AQI (US)
Lowest AQI (US) recorded in
July28AQI (US)
202033AQI (US)
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Okazaki's annual 2026 AQI (US) (33) shows an average percentage change of -5.2% (improved AQI (US)) compared to previous years: 2020 (33), 2021 (33), 2022 (38), 2023 (38), 2024 (35), 2025 (34).