SmogRank / Japan / Fukuoka / Kurume
Kurume, month by month
Kurume has a measured daily mean on 682 days since 28 July 2023. Its worst month was April 2024, at 59 US AQI (13.2 µg/m³), 567th of 2,520 cities on that month's world ranking. Its cleanest was July 2024, at 27 US AQI (4.9 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
18 months
| Month | Why |
|---|---|
| Oct 2026 | No day measured. |
| Sep 2026 | No day measured. |
| Aug 2026 | No day measured. |
| Jul 2026 | No day measured. |
| Jun 2026 | No day measured. |
| May 2026 | No day measured. |
| Apr 2026 | No day measured. |
| Mar 2026 | No day measured. |
| Feb 2026 | No day measured. |
| Jan 2026 | No day measured. |
| 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 | 18 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Aug 2023 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Jul 2023 | 4 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Kurume's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| April 2024 | 5913.2 µg/m³ | 567thof 2,520 | Japan and South Korea, April 2024 |
| January 2025 | 5813.0 µg/m³ | 614thof 2,474 | Japan and South Korea, 17 to 24 January 2025 |
| November 2023 | 5712.5 µg/m³ | 261stof 2,243 | – |
| September 2024 | 5712.3 µg/m³ | 261stof 2,010 | Japan and South Korea, September 2024 |
| May 2024 | 5712.1 µg/m³ | 479thof 2,684 | Japan, May 2024 |
| December 2023 | 5611.6 µg/m³ | 466thof 2,247 | Japan, 29 to 31 December 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.
Kurume's worst days
| Day | US AQI | Episode |
|---|---|---|
| 22 Jan 2025 | 9834.5 µg/m³ | Japan and South Korea, 17 to 24 January 2025 |
| 21 Jan 2025 | 9733.9 µg/m³ | Japan and South Korea, 17 to 24 January 2025 |
| 11 Feb 2024 | 9733.6 µg/m³ | Japan, 11 to 12 February 2024 |
| 2 Jul 2025 | 9633.2 µg/m³ | Japan and South Korea, June and July 2025 |
| 19 Apr 2024 | 9532.9 µg/m³ | Japan and South Korea, April 2024 |
| 3 Jul 2025 | 9532.7 µg/m³ | Japan and South Korea, June and July 2025 |
| 1 Jul 2025 | 9331.8 µg/m³ | Japan and South Korea, June and July 2025 |
| 4 Jul 2025 | 8828.8 µg/m³ | Japan and South Korea, June and July 2025 |
| 27 Feb 2025 | 8628.0 µg/m³ | Japan and South Korea, February and March 2025 |
| 30 Dec 2023 | 8527.5 µg/m³ | Japan, 29 to 31 December 2023 |
Daily means, the highest since 28 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, Kurume, Japan, 28 Jul 2023 – 12 Oct 2026. Monitor data from Ministry of the Environment Air Pollutant Wide Area Monitoring System via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/jp/kurume/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.
Kurume now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 23:07 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).