Air Quality in Heidelberg, South Africa
Clear
13.7°C · 43.2% humidity
13.7°
Feels 13.7°
68
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Calibrated model
Nearby Monitoring Stations
Heidelberg's air quality — share it
AQI Forecast
84
3pm
84
146
68
6pm
105
121
132
9pm
140
146
150
12am
153
156
157
3am
158
159
160
6am
160
160
145
9am
146
84
83
12pm
66
66
Air Quality Index Trend
46h · 1 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 1.3× the WHO 24-hour guideline of 15 µg/m³.
43.2%
Humidity
24.6 km/h
Wind NW
1020.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
20.2 µg/m³
PM10▲
104.9 µg/m³
050100150200300500
What is the weather forecast for Heidelberg?
Temperature & Precipitation
PM2.5 Trend
46h · 1 stationPM2.520.2 µg/m³
×1.3 WHO
Moderate
PM10104.9 µg/m³
Moderate
UV INDEX0.7
Low
What is the 7-day forecast for Heidelberg?
07-21
18.7° 7.4°
0.25 mm
07-22
20.8° 8.4°
07-23
19.3° 7.9°
07-24
20.7° 9.0°
0.06 mm
07-25
21.9° 5.9°
07-26
22.8° 8.7°
07-27
23.9° 9.6°
Both models agree
Avg diff: 3.3°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 2026-07-21T16:56 UTC.