Air Quality in Koga, Japan
Drizzle
27.3°C · 72.5% humidity
27.3°
Feels 31.9°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations
Nearby Monitoring Stations
AQI Forecast
54
6pm
54
54
12
9pm
24
12
19
12am
16
19
19
3am
21
21
22
6am
24
24
26
9am
23
25
25
12pm
25
25
25
3pm
25
25
Air Quality Index Trend
45h · 20 stnKoga'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.
72.5%
Humidity
52.0 km/h
Wind NE
1002.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.87 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for Koga?
Temperature & Precipitation
PM2.5 Trend
45h · 20 stationsPM2.52.87 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
Station readings (9 stations within 25 km)
2.87
Median
5.84
Average
2.4
Low
8.2
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +8.0
What is the 7-day forecast for Koga?
09-05
27.3° 25.0°
0.56 mm
09-06
29.2° 23.3°
0.19 mm
09-07
31.0° 23.7°
0.38 mm
09-08
28.6° 23.2°
0.31 mm
09-09
29.7° 25.1°
1.25 mm
09-10
28.9° 23.0°
2.87 mm
09-11
28.6° 23.5°
3.0 mm
Both models agree
Avg diff: 1.9°C
Where are air quality stations near Koga?
10
Koga, Fukuoka Prefecture, Japan (古賀古賀市)
30
Kasumigaoka, Fukuoka, Japan (香椎福岡市東区)
10
Yoshizuka, Fukuoka, Japan (吉塚福岡市博多区)
34
Fukuoka (福岡)
30
Nishijin, Fukuoka, Japan (西新福岡市早良区)
25
Ohashi, Fukuoka, Japan (大橋福岡市南区)
25
Nagao, Fukuoka, Japan (長尾福岡市城南区)
30
Ishimaru, Fukuoka, Japan (石丸福岡市西区)
34
Tsudamachi, Nogata, Fukuoka, Japan (直方直方市)
30
Tsudamachi, Nogata, Fukuoka, Japan (直方直方市)
What cities are near Koga?
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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 2026-09-05T12:11 UTC.