SmogRank / Spain / Castille-La Mancha / Cuenca

Cuenca, month by month

Cuenca, Castille-La Mancha has a measured daily mean on 595 days since 1 January 2023. Its worst month was July 2023, at 67 US AQI (17.7 µg/m³), 91st of 1,432 cities on that month's world ranking. Its cleanest was May 2024, at 45 US AQI (8.1 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)7 days measured
JannoneFeb1 dayMarnoneAprnoneMay2 daysJunnoneJulnoneAugnoneSep1 dayOct3 days
2025too few days for a mean (a year needs 256)19 days measured
Jan8 daysFebnoneMar3 daysApr5 daysMay1 dayJunnoneJulnoneAugnoneSep2 daysOctnoneNovnoneDecnone
2024too few days for a mean (a year needs 257)235 days measured
Jan56#697Feb57#445Mar15 daysApr54#884May45#1,279Jun15 daysJul13 daysAug7 daysSepnoneOct12 daysNov58#526Dec57#642
202357 for the year334 days measured194th of 1,355 in the world
Jan49#596Feb62#361Mar54#214Apr52#497May53#470Jun58#496Jul67#91Aug60#232Sep64#159Oct57#178Nov55#427Dec57#407
Each square is a month's mean PM2.5 in US AQI from Cuenca'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 Cuenca 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

28 months
MonthWhy
Oct 20263 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours).
Sep 20261 of 30 days measured; a month needs 21. The others: 29 with readings for part of the day (a day needs 18 hours).
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2026No day measured. The others: 30 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 20261 of 28 days measured; a month needs 20. The others: 27 with under 18 hours of readings or readings that failed our checks.
Jan 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 20252 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Aug 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Apr 20255 of 30 days measured; a month needs 21. The others: 25 with under 18 hours of readings or readings that failed our checks.
Mar 20253 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Feb 2025No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 20258 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Oct 202412 of 31 days measured; a month needs 22. The others: 19 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 202413 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jun 202415 of 30 days measured; a month needs 21. The others: 15 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.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Cuenca's worst months

MonthUS AQIDays measuredWorld rankEpisode
July 2023 6717.7 µg/m³28 of 3191stof 1,432Andalusia, Madrid and Castille-La Mancha, Spain, July 2023
September 2023 6415.9 µg/m³25 of 30159thof 2,176North-eastern Spain and France, September 2023
February 2023 6214.8 µg/m³27 of 28361stof 1,129Spain, France and Portugal, February 2023
August 2023 6013.8 µg/m³24 of 31232ndof 1,980Madrid, Castille and León and Castille-La Mancha, Spain, August 2023
June 2023 5812.8 µg/m³27 of 30496thof 1,603–
November 2024 5812.7 µg/m³27 of 30526thof 2,624–

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.

Cuenca's worst days

DayUS AQIEpisode
4 Sept 2023 182100.0 µg/m³North-eastern Spain and France, September 2023
7 Apr 2024 14553.5 µg/m³Spain, April 2024
19 Jul 2023 13448.9 µg/m³Andalusia, Madrid and Castille-La Mancha, Spain, July 2023
30 Oct 2024 12344.4 µg/m³Northern Spain, October 2024
5 Sept 2023 11842.4 µg/m³North-eastern Spain and France, September 2023
10 Aug 2023 11039.2 µg/m³–
22 Feb 2023 10838.4 µg/m³Spain, France and Portugal, February 2023
6 Apr 2024 10637.6 µg/m³Spain, April 2024
20 Jul 2023 10537.3 µg/m³Andalusia, Madrid and Castille-La Mancha, Spain, July 2023
11 Jul 2023 10436.9 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, Cuenca, Castille-La Mancha, Spain, 1 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/cuenca/history (accessed 12 Oct 2026).

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Cuenca now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 17:07 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).