Worst air pollution Sanya, today and tomorrow
Today (16 July): Air quality in Sanya is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (NO2: 31.0/100).
Tomorrow (17 July 2026): Air quality in Sanya is fair. All pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 32.3/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Sanya's air quality benefits from its exceptional Hainan Island tropical coastal position at Yalong Bay on the South China Sea, with consistent South China Sea trade winds providing reliable maritime ventilation along this famous tropical resort coast. Vehicle traffic on surrounding roads and the luxury tourism and government corridor contribute modest local sources, while the outstanding tropical island coastal exposure and the frequent convective rain generally maintain Sanya among China's cleaner coastal resort cities throughout most of the year.
Today - 16 July | Pollution peaks at 21:00
AQI:
Fair
31.0/100
PM2.5 (fine particles):
Good
18.0/100
PM10 (coarse particles):
Good
7.1/100
NO2 (nitrogen dioxide):
Fair
31.0/100
O3 (ozone):
Fair
26.2/100
SO2 (sulfur dioxide):
Good
10.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.5/100
PM1 (ultrafine particles):
Good
18.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Fair
32.3/100
PM2.5 (fine particles):
Good
16.4/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Fair
32.3/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
11.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.0/100
PM1 (ultrafine particles):
Good
16.8/100
Frequently Asked Questions
Is air quality bad in Sanya right now?
On 16 July 2026, overall air quality in Sanya is fair. AQI is the main air quality indicator at 31.0/100. Pollution peaks around 9:00 PM (NO2: 31.0/100).
Will air quality be worse tomorrow in Sanya?
On 17 July 2026, air quality conditions in Sanya will be similar to today, with AQI forecast at fair at 32.3/100. Pollution peaks around 10:00 PM (NO2: 32.3/100).
When is air pollution at its worst in Sanya?
Sanya usually sees its poorest air quality when road traffic as well as seasonal tourism traffic coincide with periods when the sea breeze weakens. Onshore breezes usually help clear the air, but pollution can build up when winds are light. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Sanya based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app