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Guangzhou air quality

China · Live AQI and hourly forecast for the next 5 days · updated Sun 08:00 local time

152

Unhealthy

US AQI, mostly PM2.5

Everyone should cut back on outdoor exercise. Sensitive groups should stay indoors.

Next 24 hours
93–164US AQI, highest around Sun 19:00
Best time outside
Mon 05:00–8:00US AQI about 95
PM2.5 vs WHO guideline
2.1×31 µg/m³ over 24 h, guideline 15
Cigarette equivalent
≈ 1.4 a dayBerkeley Earth rule of thumb
European AQI
Moderatelevel 3 of 6

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The live globe, centred on Guangzhou. Switch pollutants, drag through the next 5 days or press play. Full map →

Pollutants in Guangzhou right now

PollutantNowNext 24 h vs WHOUS AQI band
Fine particles (PM2.5) 43 µg/m³ 2.1× Sensitive
Coarse particles (PM10) 48 µg/m³ 0.8× Good
Nitrogen dioxide (NO2) 59 µg/m³ 1.5× Good
Ozone (O3) 32 µg/m³ 1.8× Good
Sulphur dioxide (SO2) 18 µg/m³ 0.2× Good
Carbon monoxide (CO) 907 µg/m³ 0.2× Good
Desert dust0 µg/m³
Smoke and haze (aerosol optical depth)0.36
UV index1.3

“Next 24 h vs WHO” compares the forecast with the World Health Organization’s 2021 guideline levels: 24-hour means of 15 µg/m³ for PM2.5, 45 for PM10, 25 for NO2, 40 for SO2 and 4 mg/m³ for CO, and 100 µg/m³ over 8 hours for ozone. Above 1× is above the guideline.

Next 48 hours

Hourly US AQI. Highest 164 around Sun 19:00, lowest 82 around Mon 23:00.

Good 0–50Moderate 51–100Sensitive 101–150Unhealthy 151–200Very unhealthy 201–300Hazardous 301+

5-day air quality forecast for Guangzhou

Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 200.

DayUS AQIAt worstWorst hourPM2.5 avgUV max
Sun 27 Sept 117–164 Unhealthy 19:00 40 8.4
Mon 28 Sept 82–157 Unhealthy 19:00 26 8.3
Tue 29 Sept 83–161 Unhealthy 19:00 36 8.6
Wed 30 Sept 102–176 Unhealthy 19:00 39 7.6
Thu 1 Oct 107–174 Unhealthy 19:00 41 8.0

Common questions about the air in Guangzhou

  1. Is the air in Guangzhou safe today?

    No. Right now the US AQI in Guangzhou is 152, which counts as unhealthy. Everyone should cut back on outdoor exercise. Sensitive groups should stay indoors.

  2. When is the best time to be outside in Guangzhou?

    Mon 05:00–8:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 95. The worst hour is around Sun 19:00, at 164.

  3. What is the main pollutant in Guangzhou?

    Fine particles (PM2.5). It drives the index right now, at 43 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.

  4. How does Guangzhou's air compare with the WHO guideline?

    2.1 times the guideline. Over the next 24 hours PM2.5 averages about 31 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. NO2 and O3 are also forecast above their guideline levels.

  5. How many cigarettes is a day of Guangzhou's air?

    About 1.4 cigarettes. Over the next 24 hours PM2.5 averages about 31 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.

  6. Will air quality in Guangzhou improve this week?

    Monday looks cleanest. Its AQI peaks at 157, against 176 on Wednesday, the worst day in the forecast.

Air quality near Guangzhou

All 161 cities

About this forecast

Forecast from CAMS global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (10 km inside Europe), refreshed twice a day. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown; ground stations, where there are any nearby, show what monitors actually measure. The US AQI follows the US EPA scale and the European AQI the EEA bands. Readings for 23.13°N, 113.26°E, updated 2026-09-27 00:00 UTC.