Air Quality in Kōshi, Japan

Clear
26.8°C · 45.3% humidity
26.8°
Feels 26.8°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
66 5am
66
66
28 8am
35
41
44 11am
47
49
50 2pm
51
52
53 5pm
53
53
54 8pm
66
66
66 11pm
66
83
83 2am
83
84
AD 728×90

Air Quality Index Trend

46h · 19 stn

Kōshi'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.

45.3%
Humidity
7.1 km/h
Wind WSW
1012.6 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
28
6.61 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Kōshi?

Temperature & Precipitation

PM2.5 Trend

46h · 19 stations
PM2.56.61 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (4 stations within 25 km)
6.61
Median
6.12
Average
4.1
Low
7.2
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +6.9

What is the 7-day forecast for Kōshi?

06-08
26.9° 20.6°
0.06 mm
06-09
27.1° 20.7°
0.19 mm
06-10
23.2° 17.3°
1.31 mm
06-11
32.9° 19.6°
0.06 mm
06-12
28.5° 20.4°
0.13 mm
06-13
30.8° 20.0°
20.5 mm
06-14
24.5° 18.0°
48.69 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Kōshi?

13
Nirenoki, Kumamoto, Japan (楡木熊本市北区)
5.4 km PM2.5: 3.1 µg/m³
34
Nirenoki, Kumamoto, Japan (楡木熊本市北区)
5.4 km PM2.5: 8.2 µg/m³
65
Uekimachi Iwano, Kumamoto-ken, Japan (北区役所熊本市北区)
7.6 km PM2.5: 18.8 µg/m³
5
Uekimachi Iwano, Kumamoto-ken, Japan (北区役所熊本市北区)
7.6 km PM2.5: 1.2 µg/m³
12
Waifu, Kikuchi, Kumamoto, Japan (菊池市役所菊池市)
10.1 km PM2.5: 2.9 µg/m³
9
Waifu, Kikuchi, Kumamoto, Japan (菊池市役所菊池市)
10.1 km PM2.5: 2.2 µg/m³
46
Hikimizu, Kumamoto, Japan (大津町引水菊池郡大津町)
10.1 km PM2.5: 11.0 µg/m³
12
Suidōchō, Kumamoto-ken, Japan (水道町自排局熊本市中央区)
11.4 km PM2.5: 2.9 µg/m³
13
Suidōchō, Kumamoto-ken, Japan (水道町自排局熊本市中央区)
11.4 km PM2.5: 3.1 µg/m³
25
Kuwamizuhonmachi, Kumamoto Prefecture, Japan (神水本町自排局熊本市中央区)
12.6 km PM2.5: 6.0 µg/m³

What cities are near Kōshi?

29 Okino 26 Uekimachi-mōno 30 Ōzu 17 Kikuchi 28 Kumamoto 28 Kotō 28 Shimada 25 Yamaga 25 Tamana 29 Mifune
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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 2026-06-08T23:09 UTC.