SmogRank / Serbia / Central Serbia / Belgrade
Belgrade, month by month
Belgrade has a measured daily mean on 1,203 days since 1 January 2023. Its worst month was December 2023, at 117 US AQI (42.2 µg/m³), 38th of 2,247 cities on that month's world ranking. Its cleanest was July 2026, at 52 US AQI (9.9 µg/m³). 2025 averaged 77 US AQI (22.9 µg/m³), against 73 US AQI (20.9 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
4 months
| Month | Why |
|---|---|
| Feb 2026 | 10 of 28 days measured; a month needs 20. The others: 18 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | 6 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks. |
| Jul 2025 | No day measured. The others: 31 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.
Belgrade's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| December 2023 | 11742.2 µg/m³ | 38thof 2,247 | Eastern Europe, December 2023 |
| December 2025 | 11240.0 µg/m³ | 251stof 3,006 | Eastern Europe, 16 to 21 December 2025 Southern Europe, December 2025 |
| February 2025 | 10938.7 µg/m³ | 115thof 2,633 | Europe, 14 February to 1 March 2025 Europe, 1 to 14 February 2025 |
| November 2024 | 10838.4 µg/m³ | 45thof 2,624 | Eastern Europe, 25 to 29 November 2024 Southern Europe, November 2024and 2 more |
| January 2024 | 9734.0 µg/m³ | 98thof 2,385 | Europe, 27 January to 2 February 2024 Europe, 8 to 27 January 2024 |
| February 2023 | 9633.4 µg/m³ | 18thof 1,129 | Europe, 6 to 25 February 2023 |
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.
Belgrade's worst days
| Day | US AQI | Episode |
|---|---|---|
| 18 Dec 2025 | 189109.0 µg/m³ | Eastern Europe, 16 to 21 December 2025 |
| 19 Dec 2025 | 182100.0 µg/m³ | Eastern Europe, 16 to 21 December 2025 |
| 19 Dec 2023 | 17995.3 µg/m³ | Eastern Europe, December 2023 |
| 19 Dec 2024 | 17894.0 µg/m³ | Serbia, Slovenia and 10 more countries, December 2024 |
| 20 Dec 2025 | 17691.8 µg/m³ | Eastern Europe, 16 to 21 December 2025 |
| 20 Dec 2023 | 17590.1 µg/m³ | Eastern Europe, December 2023 |
| 1 Feb 2024 | 17590.1 µg/m³ | Europe, 27 January to 2 February 2024 |
| 18 Dec 2023 | 17589.4 µg/m³ | Eastern Europe, December 2023 |
| 1 Jan 2023 | 17488.8 µg/m³ | Eastern Europe, January 2023 |
| 17 Dec 2025 | 17387.3 µg/m³ | Eastern Europe, 16 to 21 December 2025 |
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, Belgrade, Serbia, 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/rs/belgrade/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.
Belgrade now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 20:07 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).