Guangzhou air quality
China · Live AQI and hourly forecast for the next 5 days · valid Sat 01:00 local time
Unhealthy for sensitive groups
Model estimate. Nearby measurements are shown separately.
Kids, older adults and people with asthma or heart conditions should limit long outdoor exertion.
- Next 24 hours
- 56–159US AQI, highest around Sat 20:00
- Best time outside
- Sat 15:00–18:00US AQI about 63
- PM2.5 vs WHO guideline
- 2.1×32 µg/m³ over 24 h, guideline 15
- Cigarette equivalent
- ≈ 1.5 a dayBerkeley Earth rule of thumb
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Pollutants in Guangzhou right now
| Pollutant | Now | Level | Next 24 h vs WHO |
|---|---|---|---|
| Fine particles PM2.5 | 39 µg/m³ | Sensitive | 2.1× |
| Coarse particles PM10 | 39 µg/m³ | Good | 0.7× |
| Nitrogen dioxide NO2 | 48 µg/m³ | Good | 1.8× |
| Ozone O3 | 42 µg/m³ | Good | 1.0× |
| Sulphur dioxide SO2 | 5.9 µg/m³ | Good | 0.2× |
| Carbon monoxide CO | 323 µg/m³ | Good | 0.1× |
| Aerosol optical depth | 0.24 | Whole atmosphere · dimensionless | |
| Desert dust | 0 µg/m³ | Modelled surface dust | |
| UV index | 0 | Low |
“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. Levels follow the US AQI, which is far less strict than the WHO, so air rated Good can still be above a guideline.
Next 48 hours
Hourly US AQI. Highest 232 around Sun 22:00, lowest 56 around Sat 16:00.
5-day air quality forecast for Guangzhou
Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 250.
| Day | US AQI | At worst | UV max | |
|---|---|---|---|---|
| Sat 14 Nov | 56–159 | Unhealthy | ||
| Sun 15 Nov | 61–232 | Very unhealthy | ||
| Mon 16 Nov | 82–217 | Very unhealthy | ||
| Tue 17 Nov | 76–162 | Unhealthy |
Common questions about the air in Guangzhou
Is the air in Guangzhou safe today?
Not for sensitive groups. Right now the US AQI in Guangzhou is 109, which counts as unhealthy for sensitive groups. Kids, older adults and people with asthma or heart conditions should limit long outdoor exertion. It is expected to reach 159 (unhealthy) around Sat 20:00.
When is the best time to be outside in Guangzhou?
Sat 15:00–18:00. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 63. The worst hour is around Sat 20:00, at 159.
What is the main pollutant in Guangzhou?
Fine particles (PM2.5). It drives the index right now, at 39 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.
How does Guangzhou's air compare with the WHO guideline?
2.1 times the guideline. Over the next 24 hours PM2.5 averages about 32 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.
How many cigarettes is a day of Guangzhou's air?
About 1.5 cigarettes. Over the next 24 hours PM2.5 averages about 32 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.
Will air quality in Guangzhou improve this week?
Today looks cleanest. Its AQI peaks at 159, against 232 on Sunday, the worst day in the forecast.
Air quality near Guangzhou
US AQI right now. Cleanest nearby: Shenzhen (57); worst: Hanoi (207). The tick on each bar is Guangzhou, at 109.
- Shenzhen 104 km SE 57 Moderate
- Hong Kong 129 km SE 57 Moderate
- Hanoi 800 km W 207 Very unhealthy
- Wuhan 836 km N 168 Unhealthy
- Taipei 869 km E 66 Moderate
- Shanghai 1,212 km NE 152 Unhealthy
About this forecast
Forecast from CAMS global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (about 10 km inside Europe). Global runs update every 12 hours and European runs every 24 hours. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown. Nearby station measurements are independent observations, not adjustments to the forecast. The point forecast uses Open-Meteo’s CAMS products, including a separate carbon monoxide product; it can differ from the globe’s global grid. The AQI rates each hour on the US EPA scale, the same way the map colors it; official daily figures average over 24 hours (8 for ozone), so they can read lower after a short peak. Readings for 23.13°N, 113.26°E, valid 2026-11-13 17:00 UTC.