Nagoya, Aichi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Nagoya, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Nagoya, Aichi, Japan
99%
179
1%
2
Total number of days with different AQI categories in last 182 days in 2025 (183 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 182 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
Nagoya, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
28AQI
28AQI
27AQI
25AQI
23AQI
26AQI
25AQI
26AQI
22AQI
24AQI
23AQI
26AQI
29AQI
29AQI
25AQI
27AQI
25AQI
27AQI
27AQI
31AQI
31AQI
37AQI
37AQI
36AQI
32AQI
27AQI
29AQI
29AQI
29AQI
32AQI
36AQI
27AQI
29AQI
29AQI
29AQI
29AQI
29AQI
28AQI
28AQI
29AQI
30AQI
24AQI
31AQI
28AQI
30AQI
30AQI
32AQI
30AQI
30AQI
28AQI
29AQI
30AQI
31AQI
32AQI
30AQI
36AQI
38AQI
37AQI
39AQI
37AQI
34AQI
25AQI
23AQI
31AQI
30AQI
30AQI
35AQI
32AQI
29AQI
25AQI
33AQI
21AQI
20AQI
17AQI
16AQI
16AQI
14AQI
19AQI
30AQI
30AQI
38AQI
37AQI
49AQI
68AQI
58AQI
38AQI
31AQI
29AQI
32AQI
22AQI
23AQI
17AQI
17AQI
19AQI
15AQI
19AQI
20AQI
18AQI
24AQI
24AQI
24AQI
19AQI
23AQI
18AQI
20AQI
24AQI
29AQI
29AQI
27AQI
21AQI
21AQI
14AQI
14AQI
23AQI
22AQI
23AQI
22AQI
21AQI
24AQI
21AQI
19AQI
19AQI
19AQI
19AQI
16AQI
15AQI
16AQI
16AQI
15AQI
15AQI
20AQI
22AQI
24AQI
24AQI
22AQI
19AQI
24AQI
25AQI
33AQI
31AQI
24AQI
23AQI
22AQI
17AQI
17AQI
18AQI
16AQI
21AQI
18AQI
17AQI
16AQI
21AQI
17AQI
20AQI
20AQI
22AQI
28AQI
31AQI
24AQI
22AQI
21AQI
24AQI
25AQI
21AQI
20AQI
24AQI
24AQI
27AQI
31AQI
31AQI
26AQI
19AQI
17AQI
17AQI
18AQI
17AQI
22AQI
20AQI
24AQI
38AQI
28AQI
30AQI
31AQI
21AQI
20AQI
23AQI
No. of days
202526AQI
Highest AQI recorded in
March31AQI
Lowest AQI recorded in
May20AQI
202433AQI
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
December25AQI
202334AQI
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
August24AQI
202233AQI
Highest AQI recorded in
May45AQI
Lowest AQI recorded in
October26AQI
202127AQI
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
January18AQI
202020AQI
Highest AQI recorded in
August26AQI
Lowest AQI recorded in
September16AQI
Most & Least Polluted Years Over the Last 6 Years
Nagoya's annual 2025 AQI (26) shows an average percentage change of -8.6% (improved AQI) compared to previous years: 2020 (20), 2021 (27), 2022 (33), 2023 (34), 2024 (33).
