SmogRank / Spain / Andalusia / Jaén

Jaén, month by month

Jaén has a measured daily mean on 822 days since 11 January 2023. Its worst month was August 2025, at 77 US AQI (22.9 µg/m³), 156th of 2,901 cities on that month's world ranking. Its cleanest was April 2025, at 32 US AQI (5.7 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)102 days measured
Jan20 daysFeb7 daysMarnoneAprnoneMay2 daysJun6 daysJul11 daysAug51#1,098Sep46#948Oct7 days
2025too few days for a mean (a year needs 256)226 days measured
Jan56#721Feb16 daysMar16 daysApr32#2,364May18 daysJun13 daysJul20 daysAug77#156Sep55#544Oct16 daysNov15 daysDec53#1,287
2024too few days for a mean (a year needs 257)237 days measured
Jan60#555Feb54#573Mar15 daysApr56#746May52#785Jun55#462Jul14 daysAug7 daysSepnoneOct14 daysNov62#423Dec18 days
202352 for the year257 days measured591st of 1,355 in the world
Jan7 daysFeb53#650Mar20 daysApr3 daysMay39#1,122Jun45#1,095Jul56#448Aug15 daysSep41#1,352Oct36#1,307Nov51#798Dec61#306
Each square is a month's mean PM2.5 in US AQI from Jaén's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Jaén marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

25 months
MonthWhy
Oct 20267 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours).
Jul 202611 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Jun 20266 of 30 days measured; a month needs 21. The others: 24 with under 18 hours of readings or readings that failed our checks.
May 20262 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Apr 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20267 of 28 days measured; a month needs 20. The others: 21 with under 18 hours of readings or readings that failed our checks.
Jan 202620 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Nov 202515 of 30 days measured; a month needs 21. The others: 15 with under 18 hours of readings or readings that failed our checks.
Oct 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Jul 202520 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jun 202513 of 30 days measured; a month needs 21. The others: 17 with under 18 hours of readings or readings that failed our checks.
May 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Mar 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Feb 202516 of 28 days measured; a month needs 20. The others: 12 with under 18 hours of readings or readings that failed our checks.
Dec 202418 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Oct 202414 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 20247 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks.
Jul 202414 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Aug 202315 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Apr 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Mar 202320 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jan 20237 of 31 days measured; a month needs 22. The others: 14 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.

Jaén's worst months

MonthUS AQIDays measuredWorld rankEpisode
August 2025 7722.9 µg/m³22 of 31156thof 2,901Northern Spain, August 2025
Spain, Portugal and Andorra, August 2025
November 2024 6214.8 µg/m³27 of 30423rdof 2,624–
December 2023 6114.2 µg/m³29 of 31306thof 2,247–
January 2024 6013.7 µg/m³30 of 31555thof 2,385–
January 2025 5612.0 µg/m³22 of 31721stof 2,474–
April 2024 5611.8 µg/m³29 of 30746thof 2,520Spain, April 2024

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.

Jaén's worst days

DayUS AQIEpisode
7 Apr 2024 14754.2 µg/m³Spain, April 2024
14 Jan 2024 12143.7 µg/m³–
6 Apr 2024 11039.3 µg/m³Spain, April 2024
20 Jul 2023 10537.1 µg/m³Andalusia, Madrid and Castille-La Mancha, Spain, July 2023
21 Aug 2025 10236.1 µg/m³Spain, Portugal and Andorra, August 2025
26 Aug 2025 9834.3 µg/m³Northern Spain, August 2025
22 Aug 2025 9331.4 µg/m³Spain, Portugal and Andorra, August 2025
15 Jan 2023 8828.8 µg/m³–
8 Aug 2025 8828.7 µg/m³–
11 Jul 2023 8426.6 µg/m³–

Daily means, the highest since 11 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, Jaén, Spain, 11 Jan 2023 – 9 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/jaen/history (accessed 12 Oct 2026).

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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.

Jaén 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).