Yokohama, Kanagawa, 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
Yokohama, Kanagawa, 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 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Yokohama, Kanagawa, Japan
98%
177
2%
4
Total number of days with different AQI categories in last 182 days in 2025 (183 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% 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
Yokohama, Kanagawa, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
32AQI
24AQI
27AQI
23AQI
50AQI
33AQI
36AQI
31AQI
27AQI
24AQI
26AQI
31AQI
26AQI
32AQI
22AQI
27AQI
25AQI
28AQI
29AQI
30AQI
38AQI
38AQI
36AQI
37AQI
36AQI
31AQI
31AQI
30AQI
28AQI
26AQI
23AQI
24AQI
30AQI
29AQI
30AQI
28AQI
28AQI
29AQI
28AQI
25AQI
29AQI
28AQI
36AQI
28AQI
32AQI
29AQI
36AQI
29AQI
31AQI
28AQI
29AQI
30AQI
31AQI
32AQI
32AQI
34AQI
36AQI
38AQI
54AQI
42AQI
39AQI
30AQI
29AQI
29AQI
32AQI
29AQI
33AQI
31AQI
30AQI
33AQI
31AQI
26AQI
23AQI
18AQI
17AQI
16AQI
15AQI
17AQI
23AQI
27AQI
30AQI
30AQI
47AQI
62AQI
56AQI
38AQI
31AQI
30AQI
28AQI
22AQI
21AQI
18AQI
20AQI
17AQI
15AQI
16AQI
19AQI
19AQI
23AQI
23AQI
21AQI
18AQI
24AQI
20AQI
20AQI
25AQI
28AQI
32AQI
26AQI
24AQI
21AQI
16AQI
20AQI
19AQI
21AQI
21AQI
20AQI
16AQI
20AQI
19AQI
17AQI
17AQI
22AQI
18AQI
17AQI
15AQI
17AQI
17AQI
14AQI
17AQI
16AQI
20AQI
18AQI
19AQI
20AQI
19AQI
24AQI
26AQI
55AQI
31AQI
31AQI
26AQI
24AQI
19AQI
21AQI
25AQI
16AQI
21AQI
16AQI
14AQI
15AQI
20AQI
22AQI
19AQI
25AQI
26AQI
38AQI
34AQI
27AQI
24AQI
22AQI
26AQI
24AQI
21AQI
26AQI
25AQI
31AQI
29AQI
30AQI
28AQI
22AQI
15AQI
16AQI
16AQI
18AQI
16AQI
20AQI
20AQI
22AQI
29AQI
30AQI
30AQI
31AQI
21AQI
21AQI
24AQI
No. of days
202526AQI
Highest AQI recorded in
March31AQI
Lowest AQI recorded in
April21AQI
202434AQI
Highest AQI recorded in
July41AQI
Lowest AQI recorded in
December26AQI
202336AQI
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
August28AQI
202236AQI
Highest AQI recorded in
March42AQI
Lowest AQI recorded in
December30AQI
202132AQI
Highest AQI recorded in
May37AQI
Lowest AQI recorded in
April24AQI
202033AQI
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
September23AQI
Most & Least Polluted Years Over the Last 6 Years
Yokohama's annual 2025 AQI (26) shows an average percentage change of -22.7% (improved AQI) compared to previous years: 2020 (33), 2021 (32), 2022 (36), 2023 (36), 2024 (34).
