What is the air quality in Arai today?

The current Air Quality Index (AQI) in Arai is 38 (Good). PM2.5 concentration is 8.99 µg/m³.

What is the temperature in Arai right now?

The current temperature in Arai is 20.5°C (feels like 20.5°C). Humidity is 66.2% and wind speed is 53.3 km/h.

Is it safe to go outside in Arai?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Arai, Japan

Windy

20.5°C · 66.2% humidity

20.5°

Feels 20.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

20 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 24 stn

View full history →

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.

66.2%

Humidity

53.3 km/h

Wind E

1019.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.99 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Arai?

Temperature & Precipitation

PM2.5 Trend

45h · 24 stations

PM2.58.99 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (20 stations within 25 km)

8.99

Median

7.69

Average

3.6

Low

12.1

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -3.0

What is the 7-day forecast for Arai?

10-21

21.0° 17.0°

0.06 mm

10-22

23.8° 19.1°

10-23

22.1° 16.1°

10-24

25.2° 18.1°

10-25

22.0° 14.5°

12.56 mm

10-26

20.8° 15.3°

10-27

19.1° 16.0°

Both models agree Avg diff: 2.9°C

Where are air quality stations near Arai?

Kibi, Kosai, Shizuoka, Japan (湖西市役所湖西市)

5.1 km PM2.5: 11.0 µg/m³

Kibi, Kosai, Shizuoka, Japan (湖西市役所湖西市)

5.1 km PM2.5: 10.1 µg/m³

Kamigayachō, Shizuoka-ken, Japan (西部測定局浜松市西区)

10.6 km PM2.5: 4.1 µg/m³

Kamigayachō, Shizuoka-ken, Japan (西部測定局浜松市西区)

10.6 km PM2.5: 7.2 µg/m³

Oiwacho, Toyohashi, Aichi, Japan (二川豊橋市)

11.4 km PM2.5: 5.0 µg/m³

Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)

13.4 km PM2.5: 6.0 µg/m³

Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)

13.4 km PM2.5: 8.2 µg/m³

Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)

13.8 km PM2.5: 6.0 µg/m³

Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)

13.8 km PM2.5: 8.2 µg/m³

Hamamatsu (浜松)

14.9 km PM2.5: 6.0 µg/m³

What cities are near Arai?

42 Kosai 26 Hamamatsu 41 Toyohashi 37 Toyokawa 37 Kozakai-chō 30 Hamakita 30 Shinshiro 52 Iwata 26 Tahara 36 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 2026-10-21T08:30 UTC.