Air quality in Funchal, Portugal today

Mr. Duck’s Air Quality Score

Good air today for Funchal, Portugal

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Funchal is currently classified as Good. The primary pollutant measured is PM2.5, with a reference concentration of 6.5 µg/m³, while the corresponding PM10 reference value stands at 18.0 µg/m³. Data are based on eight valid measurements collected through OpenAQ.

Overall conditions meet the criteria for a Good rating according to the provided assessment. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The dataset for Funchal includes measurements of carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM10), particulate matter ≤2.5 µm (PM2.5) and sulphur dioxide (SO₂). Across the city there are nine recorded rows that come from two monitoring stations, São Gonçalo and São João. All values were last refreshed on 2026‑02‑10 at 21:00 UTC, so the information is current within the past week for every pollutant.

For NO₂ the observations range from a low of 26.2 µg/m³ to a high of 78.2 µg/m³, with a median of 52.2 µg/m³ and the middle‑90 % of readings falling between about 31 µg/m³ and 73 µg/m³. PM10 shows a tighter spread, from 14.1 to 18.0 µg/m³, median 16.05 µg/m³ and 10th–90th percentiles at roughly 14.5 and 17.6 µg/m³. PM2.5 values are low, ranging only from 1.0 to 6.5 µg/m³, median 3.75 µg/m³, with the central bulk between about 1.6 and 6.0 µg/m³. O₃, SO₂ and CO each have a single reported value because they are measured at only one station: O₃ is 53.7 µg/m³, SO₂ is 6.7 µg/m³ and CO is 442.0 µg/m³, all recorded at the same timestamp.

The coverage is uneven: NO₂, PM10 and PM2.5 are reported from both stations, while O₃, SO₂ and CO come from a single location. Because every pollutant’s latest reading is within seven days, the dataset reflects recent conditions, but the limited number of stations means that spatial variations across Funchal may not be fully captured.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The current dataset for Funchal includes eight valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 21:00 UTC; it is therefore “Updated within 3 days.” This snapshot reflects conditions at the time of collection, but air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows