SmogRank / Austria / Salzburg / Salzburg
Salzburg, month by month
Salzburg has a measured daily mean on 763 days since 5 July 2023. Its worst month was February 2025, at 73 US AQI (20.8 µg/m³), 499th of 2,633 cities on that month's world ranking. Its cleanest was September 2025, at 22 US AQI (3.9 µg/m³).
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
14 months
| Month | Why |
|---|---|
| Oct 2025 | 13 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks. |
| Dec 2024 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Nov 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | No day measured. The others: 31 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 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jul 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jun 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| May 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Apr 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Feb 2024 | 1 of 29 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks. |
| Jan 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Dec 2023 | 18 of 31 days measured; a month needs 22. The others: 13 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.
Salzburg's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2025 | 7320.8 µg/m³ | 499thof 2,633 | Europe, 14 February to 1 March 2025 Europe, 1 to 14 February 2025 |
| January 2026 | 6416.3 µg/m³ | 675thof 2,617 | Europe, January and February 2026 |
| March 2026 | 5712.5 µg/m³ | 1,124thof 2,971 | – |
| January 2025 | 5410.8 µg/m³ | 869thof 2,474 | – |
| December 2025 | 5410.6 µg/m³ | 1,213thof 3,006 | – |
| February 2026 | 5410.5 µg/m³ | 1,290thof 2,866 | Europe, January and February 2026 |
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.
Salzburg's worst days
| Day | US AQI | Episode |
|---|---|---|
| 23 Jan 2026 | 12043.2 µg/m³ | Europe, January and February 2026 |
| 24 Jan 2026 | 11641.5 µg/m³ | Europe, January and February 2026 |
| 10 Feb 2025 | 11440.8 µg/m³ | Europe, 1 to 14 February 2025 |
| 22 Jan 2026 | 11340.5 µg/m³ | Europe, January and February 2026 |
| 9 Feb 2025 | 10537.1 µg/m³ | Europe, 1 to 14 February 2025 |
| 25 Jan 2026 | 10436.9 µg/m³ | Europe, January and February 2026 |
| 21 Jan 2026 | 9733.9 µg/m³ | Europe, January and February 2026 |
| 11 Feb 2025 | 9331.5 µg/m³ | Europe, 1 to 14 February 2025 |
| 11 Jun 2025 | 8829.0 µg/m³ | Europe, June 2025 |
| 22 Feb 2025 | 8627.7 µg/m³ | Europe, 14 February to 1 March 2025 |
Daily means, the highest since 5 Jul 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, Salzburg, Austria, 5 Jul 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/at/salzburg/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.
Salzburg now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 18:07 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).