What is the air quality in Koster today?

The current Air Quality Index (AQI) in Koster is 41 (Good). PM2.5 concentration is 9.83 µg/m³.

What is the temperature in Koster right now?

The current temperature in Koster is 15.7°C (feels like 15.7°C). Humidity is 66.8% and wind speed is 20.4 km/h.

Is it safe to go outside in Koster?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Extreme).

Air Quality in Koster, South Africa

Partly Cloudy

15.7°C · 66.8% humidity

15.7°

Feels 15.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 10pm

37 1am

37 4am

25 7am

25 10am

25 1pm

25 4pm

37 7pm

66.8%

Humidity

20.4 km/h

Wind WSW

1022.9 hPa

Pressure

14.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Koster?

Temperature & Precipitation

PM2.59.83 µg/m³ ✓ WHO

Good

PM1027.45 µg/m³

Good

UV INDEX14.9

Extreme

What is the 7-day forecast for Koster?

04-10

25.2° 15.7°

04-11

26.5° 16.8°

04-12

25.7° 17.2°

04-13

26.6° 17.0°

04-14

27.6° 17.7°

04-15

26.5° 15.2°

2.38 mm

04-16

23.0° 15.0°

8.44 mm

Both models agree Avg diff: 1.5°C

What cities are near Koster?

76 Rustenburg 23 Ventersdorp 124 Marikana 15 Carletonville 67 Hartbeestfontein-A 16 Coligny 17 Bagale 25 Lichtenburg 42 Randfontein 49 Zeerust

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T01:50 UTC.