Air Quality in Arai, Japan

Rain
23.7°C · 57.3% humidity
23.7°
Feels 23.7°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast
27 6am
27
27
24 9am
27
34
54 12pm
66
66
66 3pm
66
66
54 6pm
54
34
34 9pm
27
27
27 12am
27
27
27 3am
27
27
AD 728×90

Air Quality Index Trend

47h · 21 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. Current PM2.5 concentration in Arai is 1.1× the WHO annual guideline of 5 µg/m³.

57.3%
Humidity
98.9 km/h
Wind SE
1002.9 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
24
5.67 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Arai?

Temperature & Precipitation

PM2.5 Trend

47h · 21 stations
PM2.55.67 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (11 stations within 25 km)
5.67
Median
5.52
Average
1.2
Low
8.2
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +7.2

What is the 7-day forecast for Arai?

05-29
23.7° 19.0°
17.63 mm
05-30
22.9° 19.1°
1.63 mm
05-31
24.4° 19.6°
0.06 mm
06-01
24.6° 20.3°
06-02
23.4° 21.3°
06-03
26.1° 21.4°
11.5 mm
06-04
23.3° 16.8°
2.19 mm
Both models agree Avg diff: 2.2°C

Where are air quality stations near Arai?

63
Kamigayachō, Shizuoka-ken, Japan (西部測定局浜松市西区)
10.6 km PM2.5: 17.8 µg/m³
30
Oiwacho, Toyohashi, Aichi, Japan (二川豊橋市)
11.4 km PM2.5: 7.2 µg/m³
34
Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)
13.4 km PM2.5: 8.2 µg/m³
34
Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)
13.8 km PM2.5: 8.2 µg/m³
35
Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)
13.8 km PM2.5: 8.4 µg/m³
42
Hamamatsu (浜松)
14.9 km PM2.5: 10.1 µg/m³
34
Hamamatsu (浜松)
14.9 km PM2.5: 8.2 µg/m³
30
Azumacho, Toyohashi, Aichi, Japan (吾妻豊橋市)
16.5 km PM2.5: 7.2 µg/m³
50
Aioicho, Shizuoka, Japan (Ｒ−１５０浜松市中区)
16.9 km PM2.5: 12.0 µg/m³
30
Aioicho, Shizuoka, Japan (Ｒ−１５０浜松市中区)
16.9 km PM2.5: 7.2 µg/m³

What cities are near Arai?

25 Kosai 28 Hamamatsu 34 Toyohashi 25 Toyokawa 20 Kozakai-chō 13 Hamakita 35 Shinshiro 19 Iwata 32 Tahara 23 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 2026-05-29T00:17 UTC.