Air Quality in Heidelberg, South Africa
Partly Cloudy
12.1°C · 57.8% humidity
12.1°
Feels 12.1°
68
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Calibrated model
Nearby Monitoring Stations
Heidelberg's air quality — share it
AQI Forecast
146
12am
146
146
68
3am
28
44
55
6am
125
146
135
9am
58
49
30
12pm
31
25
26
3pm
26
26
53
6pm
54
54
54
9pm
54
54
Air Quality Index Trend
40h · 3 stnHeidelberg'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. Current PM2.5 concentration in Heidelberg is 1.4× the WHO 24-hour guideline of 15 µg/m³.
57.8%
Humidity
17.6 km/h
Wind NNW
1024.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
20.42 µg/m³
PM10▲
104.9 µg/m³
050100150200300500
What is the weather forecast for Heidelberg?
Temperature & Precipitation
PM2.5 Trend
40h · 3 stationsPM2.520.42 µg/m³
×1.4 WHO
Moderate
PM10104.9 µg/m³
Moderate
UV INDEX0.7
Low
What is the 7-day forecast for Heidelberg?
06-09
18.9° 12.1°
06-10
16.7° 6.8°
06-11
17.4° 8.9°
06-12
15.1° 10.8°
06-13
16.0° 6.5°
06-14
22.8° 7.8°
0.13 mm
06-15
17.4° 8.2°
Both models agree
Avg diff: 3.8°C
What cities are near Heidelberg?
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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 2026-06-09T01:05 UTC.