Nobacho, 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
Nobacho, Yokohama, Kanagawa, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (12th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 29 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Oct - 13th Oct 2025
Nobacho, Yokohama, Kanagawa, Japan
5 AM12th Oct 2025
5 PM
4 AM13th Oct 2025
56AQI
23AQI
63AQI
25AQI
In the last 24 hours,
Nobacho's AQI reached its highest point of 63 at 12 AM during the Night, while the lowest point, 23, was recorded at 5 AM during the Day between 12th Oct and 13th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Nobacho, Yokohama, Kanagawa, Japan
27°C25/28°C
28°C27/30°C
27°C26/28°C
27°C26/28°C
28°C26/30°C
28°C24/30°C
23°C22/23°C
24°C23/25°C
26°C23/29°C
24°C22/25°C
23°C22/25°C
23°C22/25°C
24°C22/25°C
26°C24/27°C
24°C23/25°C
25°C24/26°C
26°C24/28°C
24°C22/26°C
21°C21/21°C
23°C21/25°C
24°C22/25°C
23°C23/24°C
24°C22/25°C
24°C22/27°C
22°C21/24°C
23°C22/25°C
22°C20/23°C
20°C19/21°C
20°C19/20°C
21°C19/24°C
--°C/°C
39AQI
36AQI
40AQI
34AQI
2025 Days Vs Air Quality
Nobacho, Yokohama, Kanagawa, Japan
86%
118
14%
19
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 286 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
Nobacho, Yokohama, Kanagawa, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI
17AQI
14AQI
16AQI
22AQI
23AQI
21AQI
29AQI
32AQI
41AQI
47AQI
29AQI
26AQI
26AQI
33AQI
30AQI
24AQI
29AQI
28AQI
34AQI
33AQI
34AQI
32AQI
24AQI
19AQI
18AQI
17AQI
17AQI
16AQI
20AQI
21AQI
23AQI
29AQI
32AQI
37AQI
35AQI
37AQI
45AQI
54AQI
70AQI
74AQI
70AQI
57AQI
55AQI
56AQI
54AQI
47AQI
45AQI
43AQI
44AQI
39AQI
36AQI
34AQI
34AQI
32AQI
31AQI
33AQI
28AQI
27AQI
26AQI
27AQI
28AQI
27AQI
29AQI
34AQI
41AQI
44AQI
60AQI
51AQI
50AQI
48AQI
44AQI
45AQI
40AQI
39AQI
35AQI
34AQI
35AQI
35AQI
37AQI
39AQI
41AQI
44AQI
45AQI
48AQI
49AQI
46AQI
56AQI
56AQI
54AQI
51AQI
48AQI
50AQI
55AQI
52AQI
44AQI
37AQI
37AQI
31AQI
30AQI
28AQI
29AQI
36AQI
40AQI
37AQI
30AQI
31AQI
29AQI
35AQI
35AQI
34AQI
44AQI
45AQI
33AQI
30AQI
28AQI
28AQI
27AQI
26AQI
22AQI
33AQI
26AQI
26AQI
30AQI
39AQI
25AQI
41AQI
46AQI
51AQI
50AQI
45AQI
43AQI
54AQI
54AQI
48AQI
41AQI
29AQI
17AQI
26AQI
41AQI
45AQI
33AQI
44AQI
No. of days
202537AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
May17AQI
Most & Least Polluted Years Over the Last 1 Years
Nobacho's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .