What is the air quality in Haikou?

Haikou, China has an annual US AQI of 77 (Polluted) and average PM2.5 of 18.9 µg/m³, ranking #3620 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Haikou?

July is typically the cleanest month (AQI 59) and October the most polluted (AQI 96).

PM2.5: 1998–2026 (monitors 2014–2026, satellite 1998–2014). Measured by government monitoring stations. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
3620	Haikou, China	Asia	AQI 77	PM2.5 18.9 µg/m³