SmogRank / Portugal / Madeira / Funchal
Funchal, month by month
Funchal has a measured daily mean on 1,170 days since 1 January 2023. Its worst month was February 2023, at 53 US AQI (10.0 µg/m³), 666th of 1,129 cities on that month's world ranking. Its cleanest was December 2025, at 16 US AQI (2.8 µg/m³). 2025 averaged 21 US AQI (3.8 µg/m³), against 29 US AQI (5.3 µg/m³) in 2024.
Every month since 2023
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Months without a mean, and why
8 months
| Month | Why |
|---|---|
| Aug 2026 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| May 2024 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Funchal's worst months
| Month | US AQI | World rank |
|---|---|---|
| February 2023 | 5310.0 µg/m³ | 666thof 1,129 |
| December 2024 | 478.4 µg/m³ | 1,242ndof 2,616 |
| October 2023 | 437.7 µg/m³ | 862ndof 2,012 |
| September 2026 | 397.0 µg/m³ | 1,272ndof 2,981 |
| January 2024 | 386.9 µg/m³ | 1,554thof 2,385 |
| February 2024 | 386.9 µg/m³ | 1,499thof 2,486 |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Funchal's worst days
| Day | US AQI |
|---|---|
| 18 Dec 2024 | 14252.3 µg/m³ |
| 13 Feb 2023 | 12143.6 µg/m³ |
| 14 Feb 2023 | 11239.8 µg/m³ |
| 15 Apr 2024 | 11139.4 µg/m³ |
| 17 Dec 2024 | 9331.4 µg/m³ |
| 19 Feb 2023 | 9030.2 µg/m³ |
| 16 Apr 2024 | 8527.4 µg/m³ |
| 9 Oct 2023 | 8527.1 µg/m³ |
| 8 Oct 2023 | 8427.0 µg/m³ |
| 28 Jan 2024 | 8326.3 µg/m³ |
Daily means, the highest since 1 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Funchal, Portugal, 1 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/pt/funchal/history (accessed 12 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Funchal now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).