Johannesburg Very Unhealthy

Johannesburg, Gauteng

Updated: Jul 7, 2026, 6:00 PM

Very Unhealthy

Health alert: The risk of health effects is increased for everyone.

Current Weather

13.8°C

Temperature

36%

Humidity

mph wind

Mainly clear

Conditions

Pollutant Breakdown

233

PM2.5

µg/m³ · Fine particles

194

PM10

µg/m³ · Coarse particles

—

Ozone

ppb · Ground-level ozone

0.1

NO₂

ppb · Nitrogen dioxide

14.5

SO₂

ppb · Sulfur dioxide

—

ppm · Carbon monoxide

Dominant pollutant: PM25

PM2.5 Forecast (next 7 days)

Mon

7/6

189

avg

Tue

7/7

191

avg

Wed

7/8

145

avg

Thu

7/9

131

avg

Fri

7/10

151

avg

Sat

7/11

145

avg

Sun

7/12

161

avg

Health Guidance

🚫

Sensitive groups: Avoid all outdoor physical activity.

⚠️

General population: Avoid prolonged outdoor exertion. Consider wearing N95 mask outdoors.

💨

Keep windows closed if AQI is Unhealthy or above. Use HEPA air purifiers indoors.

Data from: South African Air Quality Information System - SAAQIS, World Air Quality Index Project

Is the air safe in Johannesburg today?

The current Air Quality Index (AQI) in Johannesburg is 233, which is classified as "Very Unhealthy". Health alert: The risk of health effects is increased for everyone.

The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.

Air quality in Johannesburg, Gauteng is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

AQI Scale Reference

0–50

Good

51–100

Moderate

101–150

Unhealthy for Sensitive Groups

151–200

Unhealthy

201–300

Very Unhealthy

301+

Hazardous