Air Quality in Arai, Japan
Cloudy
24.9°C · 84.1% humidity
24.9°
Feels 24.9°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
18
8am
20
20
20
11am
27
27
27
2pm
27
27
27
5pm
27
27
47
8pm
47
27
20
11pm
20
20
20
2am
20
20
20
5am
20
20
Station readings
7h ago
AQI 17
PM2.5 4.1 µg/m³ · 7h ago
CAMS model
adj -7
25
27
27
27
34
34
34
34
34
34
34
34
54
54
34
27
27
27
27
27
27
27
27
27
Air Quality Index Trend
42h · 20 stnArai'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.
84.1%
Humidity
38.0 km/h
Wind ESE
1008.3 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.9 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Arai?
Temperature & Precipitation
PM2.5 Trend
42h · 20 stationsPM2.54.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
Station readings (9 stations within 25 km)
4.9
Median
4.87
Average
3.1
Low
7.4
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.1
What is the 7-day forecast for Arai?
08-03
32.8° 24.9°
2.12 mm
08-04
31.5° 25.1°
9.94 mm
08-05
29.9° 24.2°
2.25 mm
08-06
28.1° 26.3°
9.63 mm
08-07
31.4° 28.2°
0.38 mm
08-08
36.4° 26.7°
9.56 mm
08-09
36.3° 24.3°
Both models agree
Avg diff: 2.5°C
Where are air quality stations near Arai?
30
Kibi, Kosai, Shizuoka, Japan (湖西市役所湖西市)
25
Kamigayachō, Shizuoka-ken, Japan (西部測定局浜松市西区)
36
Oiwacho, Toyohashi, Aichi, Japan (二川豊橋市)
21
Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)
21
Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)
34
Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)
21
Hamamatsu (浜松)
34
Hamamatsu (浜松)
30
Azumacho, Toyohashi, Aichi, Japan (吾妻豊橋市)
30
Aioicho, Shizuoka, Japan (R−150浜松市中区)
What cities are near Arai?
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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 2026-08-08T02:00 UTC.