Air Quality in Ōi, Japan

Drizzle
24.6°C · 77.1% humidity
24.6°
Feels 24.6°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
38 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
20 5pm
20
20
22 8pm
20
20
20 11pm
20
20
18 2am
18
18
18 5am
18
18
20 8am
20
20
27 11am
27
27
47 2pm
47
47
Station readings
11
35
CAMS model adj -7
27
27
27
27
27
27
27
27
27
25
25
25
25
25
25
27
27
27
34
34
34
54
54
54
AD 728×90

Air Quality Index Trend

40h · 1 stn

Ōi'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.

77.1%
Humidity
42.5 km/h
Wind ENE
1010.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
22
5.24 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ōi?

Temperature & Precipitation

PM2.5 Trend

40h · 1 station
PM2.55.24 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (38 stations within 25 km)
5.24
Median
5.75
Average
1.9
Low
9.1
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.0

What is the 7-day forecast for Ōi?

09-05
27.4° 20.8°
19.19 mm
09-06
31.1° 23.4°
2.12 mm
09-07
31.0° 23.2°
2.06 mm
09-08
31.7° 22.8°
1.88 mm
09-09
27.7° 22.5°
8.75 mm
09-10
27.9° 24.2°
2.63 mm
09-11
31.8° 24.2°
0.19 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Ōi?

21
Sunashinden, Kawagoe-shi, Saitama-ken, Japan (川越市高階川越市)
5.3 km PM2.5: 5.0 µg/m³
29
Horigane, Sayama-shi, Saitama-ken, Japan (狭山狭山市)
6.4 km PM2.5: 7.0 µg/m³
33
Tokorozawa (所沢)
7.3 km PM2.5: 7.9 µg/m³
17
Kamikiyoto, Kiyose, Tokyo, Japan (清瀬市上清戸清瀬市)
8.1 km PM2.5: 4.1 µg/m³
21
Azumacho, Iruma, Saitama, Japan (入間入間市)
11.3 km PM2.5: 5.0 µg/m³
17
Azumacho, Iruma, Saitama, Japan (入間入間市)
11.3 km PM2.5: 4.1 µg/m³
17
Saitama (埼玉)
11.4 km PM2.5: 4.1 µg/m³
25
Bijogi, Toda, Saitama, Japan (戸田美女木自排戸田市)
11.5 km PM2.5: 6.0 µg/m³
25
Daimoncho, Saitama, Japan (さいたま市大宮さいたま市大宮区)
11.7 km PM2.5: 6.0 µg/m³
21
Daimoncho, Saitama, Japan (さいたま市大宮さいたま市大宮区)
11.7 km PM2.5: 5.0 µg/m³

What cities are near Ōi?

20 Kamifukuoka 23 Miyoshidai 24 Niiza 24 Fujimino 23 Shiki 29 Kawagoe 8 Tokorozawa 29 Kiyose 25 Sashiōgi 23 Akitsu
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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 2026-09-05T11:14 UTC.