Air Quality in Koster, South Africa
Clear
15.4°C · 36.4% humidity
15.4°
Feels 15.4°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Koster's air quality — share it
AQI Forecast
54
3pm
54
54
48
6pm
53
57
59
9pm
61
80
64
12am
64
65
53
3am
53
54
54
6am
54
54
54
9am
54
54
54
12pm
54
54
Koster's air quality is influenced by vehicle emissions, biomass burning, dust, and industrial activity. Dry seasons and Harmattan winds can significantly elevate particulate pollution levels.
36.4%
Humidity
20.4 km/h
Wind W
1020.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
11.58 µg/m³
PM10▲
66.15 µg/m³
050100150200300500
What is the weather forecast for Koster?
Temperature & Precipitation
PM2.511.58 µg/m³
✓ WHO
Good
PM1066.15 µg/m³
Moderate
UV INDEX0.7
Low
What is the 7-day forecast for Koster?
07-21
22.1° 9.3°
0.06 mm
07-22
21.2° 11.1°
07-23
21.4° 8.2°
0.56 mm
07-24
21.2° 10.0°
2.5 mm
07-25
23.0° 8.7°
07-26
22.9° 11.6°
07-27
26.2° 10.1°
Both models agree
Avg diff: 2.5°C
What cities are near Koster?
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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 2026-07-21T16:49 UTC.