Air Quality in Koga, Japan

Partly Cloudy
22.5°C · 60.7% humidity
22.5°
Feels 22.5°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
14 stations

Nearby Monitoring Stations

AQI Forecast
66 6am
83
66
35 9am
20
24
27 12pm
29
30
31 3pm
32
33
33 6pm
33
54
54 9pm
66
66
66 12am
66
66
83 3am
83
84
AD 728×90

Air Quality Index Trend

47h · 28 stn

Koga'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.

60.7%
Humidity
13.0 km/h
Wind ESE
1012.8 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
35
8.46 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Koga?

Temperature & Precipitation

PM2.5 Trend

47h · 28 stations
PM2.58.46 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (14 stations within 25 km)
8.46
Median
7.26
Average
3.8
Low
10.1
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +5.0

What is the 7-day forecast for Koga?

06-09
26.9° 21.3°
06-10
21.2° 18.1°
5.94 mm
06-11
27.1° 21.2°
06-12
24.3° 21.9°
06-13
25.6° 21.0°
5.0 mm
06-14
23.6° 19.9°
37.31 mm
06-15
25.5° 19.3°
25.88 mm
Both models agree Avg diff: 1.9°C

Where are air quality stations near Koga?

33
Koga, Fukuoka Prefecture, Japan (古賀古賀市)
1.9 km PM2.5: 7.9 µg/m³
23
Kasumigaoka, Fukuoka, Japan (香椎福岡市東区)
7.3 km PM2.5: 5.5 µg/m³
43
Kasumigaoka, Fukuoka, Japan (香椎福岡市東区)
7.3 km PM2.5: 10.3 µg/m³
36
Togo, Munakata, Fukuoka, Japan (宗像宗像市)
10.5 km PM2.5: 8.6 µg/m³
13
Togo, Munakata, Fukuoka, Japan (宗像宗像市)
10.5 km PM2.5: 3.1 µg/m³
42
Tanaka, Fukuoka-ken, Japan (篠栗糟屋郡篠栗町)
13.1 km PM2.5: 10.1 µg/m³
31
Tanaka, Fukuoka-ken, Japan (篠栗糟屋郡篠栗町)
13.1 km PM2.5: 7.4 µg/m³
22
Yoshizuka, Fukuoka, Japan (吉塚福岡市博多区)
14.5 km PM2.5: 5.3 µg/m³
45
Yoshizuka, Fukuoka, Japan (吉塚福岡市博多区)
14.5 km PM2.5: 10.8 µg/m³
13
Fukuoka (福岡)
17.0 km PM2.5: 3.1 µg/m³

What cities are near Koga?

32 Nishifukuma 34 Shingū 28 Fukutsu 21 Munakata 30 Wakasugi 29 Sasaguri 34 Fukuoka 30 Sue 30 Miyawaka 30 Shime
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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 2026-06-09T00:50 UTC.