SmogRank / Spain / Andalusia / Los Barrios

Los Barrios, month by month

Los Barrios has a measured daily mean on 272 days since 1 February 2024. Its worst month was December 2025, at 52 US AQI (9.7 µg/m³), 1,404th of 3,006 cities on that month's world ranking. Its cleanest was March 2025, at 26 US AQI (4.6 µg/m³).

Every month since 2024

2026too few days for a mean (a year needs 200)78 days measured
Jan10 daysFebnoneMarnoneAprnoneMay1 dayJun5 daysJul9 daysAug33#2,509Sep41#1,183Oct3 days
2025too few days for a mean (a year needs 256)193 days measured
JannoneFeb10 daysMar26#2,549Apr14 daysMay16 daysJun17 daysJul41#1,907Aug47#1,639Sep30#2,391OctnoneNov13 daysDec52#1,404
2024too few days for a mean (a year needs 257)1 day measured
JanFeb1 dayMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Los Barrios'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 Los Barrios marked; each year, the year's.
Good0–50
Moderate51–100
Unhealthy for 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

26 months
MonthWhy
Oct 20263 of 12 days measured; a month needs 9. The others: 2 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours).
Jul 20269 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks.
Jun 20265 of 30 days measured; a month needs 21. The others: 25 with under 18 hours of readings or readings that failed our checks.
May 20261 of 31 days measured; a month needs 22. The others: 30 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 2026No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 202610 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Nov 202513 of 30 days measured; a month needs 21. The others: 17 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.
Jun 202517 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks.
May 202516 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Apr 202514 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Feb 202510 of 28 days measured; a month needs 20. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jan 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2024No day measured. The others: 31 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 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20241 of 29 days measured; a month needs 21. The others: 28 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.

Los Barrios's worst months

MonthUS AQIDays measuredWorld rank
December 2025 529.7 µg/m³22 of 311,404thof 3,006
August 2025 478.5 µg/m³25 of 311,639thof 2,901
July 2025 417.4 µg/m³28 of 311,907thof 2,889
September 2026 417.3 µg/m³28 of 301,183rdof 2,997
August 2026 335.9 µg/m³22 of 312,509thof 2,896
September 2025 305.4 µg/m³26 of 302,391stof 3,104

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.

Los Barrios's worst days

DayUS AQI
12 Dec 2025 7421.7 µg/m³
13 Jan 2026 6717.5 µg/m³
31 Dec 2025 6617.1 µg/m³
13 Dec 2025 6516.5 µg/m³
10 Dec 2025 6416.1 µg/m³
26 Aug 2025 6415.9 µg/m³
11 Apr 2025 6315.8 µg/m³
5 Mar 2025 6315.5 µg/m³
16 Jul 2025 6214.9 µg/m³
16 Feb 2025 6014.1 µg/m³

Daily means, the highest since 1 Feb 2024; 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, Los Barrios, Spain, 1 Feb 2024 – 9 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/los-barrios/history (accessed 13 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.

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

Updated 2026-10-13 03:07 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).