What is the air quality trend in Thembisa?

Over the past 5 days, Thembisa had an average AQI of 116 based on station measurements. The worst day was 2026-07-04 with AQI 174.

How is Thembisa air quality measured?

Air quality in Thembisa is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Thembisa, South Africa

Name: Thembisa Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Thembisa, South Africa.

156

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

13h

PM2.5 Station

13h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-08	91	68–102	31.1 µg/m³	20.2	5h	1
2026-07-07	151	151–151	55.5 µg/m³	—	1h	1
2026-07-06	82	64–98	26.9 µg/m³	35.1	3h	3
2026-07-04	174	174–174	100.0 µg/m³	—	1h	1
2026-07-02	83	19–158	32.2 µg/m³	2.6	3h	3

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