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
26 12pm
26
26
20 3pm
22
23
24 6pm
24
45
45 9pm
25
19
19 12am
19
19
19 3am
19
19
19 6am
19
19
26 9am
26
26
Station readings 11h ago
AQI 17
PM2.5 4.1 µg/m³ · 11h ago
AD 728×90

Air Quality Index Trend

42h · 15 stn

Arai'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▲
20
4.9 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Arai?

Temperature & Precipitation

PM2.5 Trend

42h · 15 stations
PM2.54.9 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
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?

21
Kibi, Kosai, Shizuoka, Japan (湖西市役所湖西市)
5.1 km PM2.5: 5.0 µg/m³
21
Kamigayachō, Shizuoka-ken, Japan (西部測定局浜松市西区)
10.6 km PM2.5: 5.0 µg/m³
17
Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)
13.4 km PM2.5: 4.1 µg/m³
25
Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)
13.8 km PM2.5: 6.0 µg/m³
25
Hamamatsu (浜松)
14.9 km PM2.5: 6.0 µg/m³
21
Hamamatsu (浜松)
14.9 km PM2.5: 5.0 µg/m³
34
Noyoricho, Toyohashi, Aichi, Japan (野依豊橋市)
16.2 km PM2.5: 8.2 µg/m³
30
Takaokahigashi, Shizuoka, Japan (北部測定局浜松市中区)
16.3 km PM2.5: 7.2 µg/m³
30
Azumacho, Toyohashi, Aichi, Japan (吾妻豊橋市)
16.5 km PM2.5: 7.2 µg/m³
21
Aioicho, Shizuoka, Japan (Ｒ−１５０浜松市中区)
16.9 km PM2.5: 5.0 µg/m³

What cities are near Arai?

21 Kosai 22 Hamamatsu 13 Toyohashi 12 Toyokawa 12 Kozakai-chō 21 Hamakita 15 Shinshiro 12 Iwata 15 Tahara 17 Fukuroi
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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 2026-08-08T06:32 UTC.