SmogRank / Bangladesh / Dhaka Division / Dhaka
Dhaka, month by month
Dhaka has a measured daily mean on 991 days since 1 January 2023. Its worst month was January 2023, at 302 US AQI (225.8 µg/m³), 2nd of 1,261 cities on that month's world ranking. Its cleanest was July 2023, at 94 US AQI (32.2 µg/m³). 2024 averaged 181 US AQI (98.1 µg/m³), against 177 US AQI (92.3 µg/m³) in 2023.
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
13 months
| Month | Why |
|---|---|
| Feb 2026 | 19 of 28 days measured; a month needs 20. The others: 9 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. |
| Dec 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Nov 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Sep 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | No day measured. The others: 31 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. |
| Jun 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| May 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Apr 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 9 of 31 days measured; a month needs 22. The others: 19 missing from OpenAQ's archive, 3 with under 18 hours of readings or readings that failed our checks. |
| Feb 2023 | 2 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 1 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.
Dhaka's worst months
| Month | US AQI | World rank |
|---|---|---|
| January 2023 | 302225.8 µg/m³ | 2ndof 1,261 |
| January 2025 | 288213.4 µg/m³ | 2ndof 2,474 |
| January 2024 | 283207.9 µg/m³ | 4thof 2,385 |
| December 2024 | 265190.5 µg/m³ | 2ndof 2,616 |
| February 2025 | 244168.6 µg/m³ | 1stof 2,633 |
| December 2023 | 242167.1 µg/m³ | 3rdof 2,247 |
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.
Dhaka's worst days
| Day | US AQI |
|---|---|
| 22 Jan 2025 | 500+383.0 µg/m³ |
| 29 Jan 2025 | 500+342.0 µg/m³ |
| 26 Jan 2023 | 500+334.0 µg/m³ |
| 30 Jan 2024 | 467309.0 µg/m³ |
| 19 Dec 2024 | 467309.0 µg/m³ |
| 25 Jan 2024 | 441296.0 µg/m³ |
| 8 Jan 2023 | 424287.0 µg/m³ |
| 30 Jan 2025 | 420285.0 µg/m³ |
| 23 Jan 2024 | 410280.0 µg/m³ |
| 10 Feb 2025 | 398274.0 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, Dhaka, Bangladesh, 1 Jan 2023 – 12 Oct 2026. Monitor data from AirGradient via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/bd/dhaka/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.
Dhaka 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).