SmogRank / Ivory Coast / Abidjan Autonomous District / Abidjan

Abidjan, month by month

Abidjan has a measured daily mean on 394 days since 16 January 2023. Its worst month was December 2024, at 146 US AQI (53.9 µg/m³), 23rd of 2,616 cities on that month's world ranking. Its cleanest was May 2023, at 52 US AQI (9.7 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)105 days measured
Jan8 daysFeb69#613Mar64#761Apr2 daysMay6 daysJun3 daysJul5 daysAug9 daysSep58#450Oct6 days
2025too few days for a mean (a year needs 256)60 days measured
Jan124#42Feb107#124Mar3 daysAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
2024too few days for a mean (a year needs 257)91 days measured
JannoneFebnoneMar2 daysApr2 daysMay2 daysJun3 daysJulnoneAugnoneSep16 daysOct56#385Nov9 daysDec146#23
2023too few days for a mean (a year needs 256)138 days measured
Jan6 daysFeb1 dayMar5 daysApr17 daysMay52#511Jun54#701Jul17 daysAug12 daysSep6 daysOct18 daysNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Abidjan'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 Abidjan 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

37 months
MonthWhy
Oct 20266 of 11 days measured; a month needs 8. The others: 5 with readings for part of the day (a day needs 18 hours).
Aug 20269 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks.
Jul 20265 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Jun 20263 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
May 20266 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Apr 20262 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 20268 of 31 days measured; a month needs 22. The others: 23 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 2025No day measured. The others: 30 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 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2025No day measured. The others: 30 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.
Nov 20249 of 30 days measured; a month needs 21. The others: 21 with under 18 hours of readings or readings that failed our checks.
Sep 202416 of 30 days measured; a month needs 21. The others: 14 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 20243 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
May 20242 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Apr 20242 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Mar 20242 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Feb 2024No day measured. The others: 1 missing from OpenAQ's archive, 28 with under 18 hours of readings or readings that failed our checks.
Jan 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 202318 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Sep 20236 of 30 days measured; a month needs 21. The others: 24 with under 18 hours of readings or readings that failed our checks.
Aug 202312 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Jul 202317 of 31 days measured; a month needs 22. The others: 1 missing from OpenAQ's archive, 13 with under 18 hours of readings or readings that failed our checks.
Apr 202317 of 30 days measured; a month needs 21. The others: 3 missing from OpenAQ's archive, 10 with under 18 hours of readings or readings that failed our checks.
Mar 20235 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive, 6 with under 18 hours of readings or readings that failed our checks.
Feb 20231 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 2 with under 18 hours of readings or readings that failed our checks.
Jan 20236 of 31 days measured; a month needs 22. The others: 1 missing from OpenAQ's archive, 9 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.

Abidjan's worst months

MonthUS AQIDays measuredWorld rank
December 2024 14653.9 µg/m³31 of 3123rdof 2,616
January 2025 12445.0 µg/m³30 of 3142ndof 2,474
February 2025 10737.8 µg/m³27 of 28124thof 2,633
February 2026 6918.6 µg/m³20 of 28613thof 2,866
March 2026 6416.0 µg/m³24 of 31761stof 2,971
September 2026 5813.0 µg/m³22 of 30450thof 2,981

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.

Abidjan's worst days

DayUS AQI
21 May 2024 209134.0 µg/m³
22 Dec 2024 193115.0 µg/m³
13 Dec 2024 18096.7 µg/m³
21 Dec 2024 17183.7 µg/m³
23 Dec 2024 17183.4 µg/m³
7 Jan 2025 16576.0 µg/m³
24 Dec 2024 16575.5 µg/m³
15 Dec 2024 16474.7 µg/m³
20 Dec 2024 16271.5 µg/m³
14 Dec 2024 16271.4 µg/m³

Daily means, the highest since 16 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, Abidjan, Ivory Coast, 16 Jan 2023 – 11 Oct 2026. Monitor data from Clarity via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/ci/abidjan/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.

Abidjan 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).