Air Quality in Yokohama, Japan

Rain
23.8°C · 83.1% humidity
23.8°
Feels 23.8°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
28 stations

Nearby Monitoring Stations

AQI Forecast
84 5am
146
84
60 8am
67
71
76 11am
78
80
81 2pm
82
82
82 5pm
82
82
83 8pm
83
83
84 11pm
84
146
146 2am
146
84
AD 728×90

Air Quality Index Trend

47h · 29 stn

Yokohama's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions. Current PM2.5 concentration in Yokohama is 1.1× the WHO 24-hour guideline of 15 µg/m³.

83.1%
Humidity
61.2 km/h
Wind N
1002.5 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
60
16.61 µg/m³
PM10▲
63
79.9 µg/m³
050100150200300500

What is the weather forecast for Yokohama?

Temperature & Precipitation

PM2.5 Trend

47h · 29 stations
PM2.516.61 µg/m³ ×1.1 WHO
Moderate
PM1079.9 µg/m³
Moderate
UV INDEX9.4
Very High
AD 300×250
Station readings (28 stations within 25 km)
16.61
Median
16.75
Average
1.9
Low
22.1
High
PM2.5 µg/m³ · Model: 27.1 · Bias: +10.5

What is the 7-day forecast for Yokohama?

07-21
31.7° 22.3°
6.38 mm
07-22
29.0° 23.8°
2.5 mm
07-23
27.7° 22.4°
1.31 mm
07-24
28.7° 23.5°
0.75 mm
07-25
30.8° 23.7°
07-26
31.2° 25.2°
0.06 mm
07-27
32.7° 24.7°
6.06 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Yokohama?

85
Yokohama (横浜)
1.6 km PM2.5: 28.3 µg/m³
70
西区平沼
4.2 km PM2.5: 21.0 µg/m³ PM10: 63.0 µg/m³
26
Hirodaiotamachi, Kanagawa, Japan (神奈川区総合庁舎横浜市神奈川区)
5.2 km PM2.5: 6.2 µg/m³
20
Sakuragaoka, Kanagawa, Japan (保土ヶ谷区桜丘高校横浜市保土ヶ谷区)
6.1 km PM2.5: 4.8 µg/m³
36
Tomiokahigashi, Kanagawa, Japan (金沢区長浜横浜市金沢区)
8.0 km PM2.5: 8.6 µg/m³
51
Honchodori, Kanagawa, Japan (鶴見区潮田交流プラザ横浜市鶴見区)
8.1 km PM2.5: 12.1 µg/m³
68
港南区野庭町
8.7 km PM2.5: 20.0 µg/m³ PM10: 51.0 µg/m³
24
Mamedocho, Kanagawa, Japan (港北区総合庁舎横浜市港北区)
9.7 km PM2.5: 5.8 µg/m³
13
Tajimacho, Kanagawa, Japan (国設川崎川崎市川崎区)
10.7 km PM2.5: 3.1 µg/m³
33
Inoyamacho, Kanagawa, Japan (栄区上郷小学校横浜市栄区)
10.9 km PM2.5: 7.9 µg/m³

What cities are near Yokohama?

66 Isogo 61 Sugita 66 Kawasaki 65 Ōta 65 Kamata 55 Kamakura 67 Ikegami 69 Yokosuka 58 Zushi 59 Aobadai
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T23:16 UTC.