Air Quality in Kosai, Japan

Cloudy
19.0°C · 86.8% humidity
19.0°
Feels 19.0°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast
54 1am
54
54
22 4am
31
38
42 7am
26
28
21 10am
22
23
23 1pm
24
24
24 4pm
27
27
27 7pm
27
27
54 10pm
54
54
AD 728×90

Air Quality Index Trend

47h · 22 stn

Kosai'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.

86.8%
Humidity
15.9 km/h
Wind NNW
1011.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
22
5.2 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Kosai?

Temperature & Precipitation

PM2.5 Trend

47h · 22 stations
PM2.55.2 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (12 stations within 25 km)
5.2
Median
4.96
Average
1.2
Low
10.6
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +5.7

What is the 7-day forecast for Kosai?

06-08
28.3° 19.0°
1.56 mm
06-09
22.4° 21.4°
0.13 mm
06-10
26.3° 20.8°
1.06 mm
06-11
26.1° 20.8°
06-12
23.2° 21.4°
1.31 mm
06-13
31.8° 20.4°
5.81 mm
06-14
26.5° 20.4°
31.31 mm
Both models agree Avg diff: 1.8°C

Where are air quality stations near Kosai?

25
Oiwacho, Toyohashi, Aichi, Japan (二川豊橋市)
7.0 km PM2.5: 6.0 µg/m³
5
Mikkabicho Mikkabi, Shizuoka, Japan (三ヶ日浜松市北区)
11.8 km PM2.5: 1.2 µg/m³
25
Azumacho, Toyohashi, Aichi, Japan (吾妻豊橋市)
12.1 km PM2.5: 6.0 µg/m³
30
Kamigayachō, Shizuoka-ken, Japan (西部測定局浜松市西区)
13.8 km PM2.5: 7.2 µg/m³
102
Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)
17.6 km PM2.5: 35.9 µg/m³
21
Kamoe, Shizuoka, Japan (浜松中央測定局浜松市中区)
17.6 km PM2.5: 5.0 µg/m³
10
Hamamatsu (浜松)
18.6 km PM2.5: 2.4 µg/m³
13
Hamamatsu (浜松)
18.6 km PM2.5: 3.1 µg/m³
32
Aioicho, Shizuoka, Japan (Ｒ−１５０浜松市中区)
20.7 km PM2.5: 7.7 µg/m³
45
Aioicho, Shizuoka, Japan (Ｒ−１５０浜松市中区)
20.7 km PM2.5: 10.8 µg/m³

What cities are near Kosai?

20 Arai 32 Toyohashi 20 Toyokawa 19 Kozakai-chō 28 Hamamatsu 19 Shinshiro 27 Tahara 9 Hamakita 20 Iwata 18 Gamagōri
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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 2026-06-08T19:28 UTC.