2 chome, Yokohama, Kanagawa, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
2 chome, Yokohama, Kanagawa, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (11th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Oct - 12th Oct 2025
2 chome, Yokohama, Kanagawa, Japan
5 AM11th Oct 2025
5 PM
4 AM12th Oct 2025
AQI
AQI
54AQI
38AQI
In the last 24 hours,
2 chome's AQI reached its highest point of 54 at 5 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 11th Oct and 12th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
2 chome, Yokohama, Kanagawa, Japan
25°C24/27°C
27°C25/29°C
29°C27/31°C
27°C26/29°C
28°C26/30°C
29°C27/30°C
29°C24/32°C
23°C22/23°C
24°C23/26°C
26°C23/30°C
24°C22/25°C
23°C21/26°C
23°C22/26°C
24°C22/26°C
26°C25/29°C
24°C23/26°C
25°C24/27°C
26°C24/29°C
24°C22/26°C
21°C20/21°C
23°C21/26°C
24°C23/25°C
23°C23/24°C
24°C22/26°C
24°C22/27°C
22°C21/24°C
23°C21/25°C
22°C19/23°C
20°C19/22°C
--°C/°C
--°C/°C
39AQI
38AQI
39AQI
36AQI
2025 Days Vs Air Quality
2 chome, Yokohama, Kanagawa, Japan
85%
115
15%
21
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 284 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
2 chome, Yokohama, Kanagawa, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
18AQI
14AQI
16AQI
26AQI
24AQI
26AQI
33AQI
37AQI
43AQI
48AQI
32AQI
27AQI
27AQI
34AQI
29AQI
25AQI
31AQI
32AQI
38AQI
36AQI
36AQI
37AQI
27AQI
19AQI
21AQI
20AQI
19AQI
17AQI
22AQI
23AQI
26AQI
33AQI
34AQI
40AQI
36AQI
39AQI
45AQI
56AQI
72AQI
75AQI
74AQI
59AQI
55AQI
57AQI
55AQI
48AQI
48AQI
46AQI
47AQI
42AQI
37AQI
34AQI
35AQI
34AQI
33AQI
33AQI
28AQI
28AQI
26AQI
28AQI
31AQI
29AQI
30AQI
33AQI
39AQI
43AQI
59AQI
51AQI
51AQI
49AQI
47AQI
48AQI
43AQI
41AQI
35AQI
33AQI
39AQI
36AQI
38AQI
38AQI
42AQI
45AQI
48AQI
50AQI
52AQI
48AQI
57AQI
55AQI
55AQI
51AQI
46AQI
50AQI
55AQI
51AQI
45AQI
37AQI
37AQI
38AQI
32AQI
29AQI
29AQI
39AQI
41AQI
38AQI
31AQI
31AQI
30AQI
36AQI
35AQI
36AQI
45AQI
47AQI
37AQI
35AQI
31AQI
31AQI
30AQI
30AQI
26AQI
33AQI
30AQI
28AQI
25AQI
24AQI
22AQI
44AQI
50AQI
49AQI
50AQI
44AQI
44AQI
51AQI
52AQI
49AQI
57AQI
18AQI
29AQI
43AQI
46AQI
34AQI
47AQI
No. of days
202538AQI
Highest AQI recorded in
October47AQI
Lowest AQI recorded in
May18AQI
Most & Least Polluted Years Over the Last 1 Years
2 chome's annual 2025 AQI (38) shows an average percentage change of NaN% (improved AQI) compared to previous years: .