What is the air quality in San Mateo?

San Mateo, Philippines has an annual US AQI of 75 (Polluted) and average PM2.5 of 21.8 µg/m³, ranking #3539 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in San Mateo?

May is typically the cleanest month (AQI 72) and February the most polluted (AQI 78).

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
3539	San Mateo, Philippines	Asia	AQI 75	PM2.5 21.8 µg/m³