SmogRank / Martinique / Martinique / Le Robert

Le Robert, month by month

Le Robert has a measured daily mean on 956 days since 1 January 2023. Its worst month was February 2024, at 64 US AQI (16.2 µg/m³), 303rd of 2,486 cities on that month's world ranking. Its cleanest was February 2023, at 26 US AQI (4.6 µg/m³).

Every month since 2023

202647 so far225 days measured1,586th of 2,791 in the world
2025too few days for a mean (a year needs 256)248 days measured
Jan18 daysFeb19 daysMar20 daysApr34#2,237May14 daysJun9 daysJul52#1,423Aug18 daysSep29#2,508Oct19 daysNov32#2,247Dec28#2,673
2024too few days for a mean (a year needs 257)162 days measured
Jan42#1,344Feb64#303Mar10 daysAprnoneMaynoneJun2 daysJul54#619Aug13 daysSepnoneOct14 daysNov32#2,078Dec20 days
Each square is a month's mean PM2.5 in US AQI from Le Robert'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 Le Robert 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

20 months
MonthWhy
Oct 20266 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours).
Jun 202616 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks.
Feb 202619 of 28 days measured; a month needs 20. The others: 9 with under 18 hours of readings or readings that failed our checks.
Jan 202616 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Oct 202519 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Aug 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Jun 20259 of 30 days measured; a month needs 21. The others: 21 with under 18 hours of readings or readings that failed our checks.
May 202514 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Mar 202520 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Feb 202519 of 28 days measured; a month needs 20. The others: 9 with under 18 hours of readings or readings that failed our checks.
Jan 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Dec 202420 of 31 days measured; a month needs 22. The others: 11 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 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 20242 of 30 days measured; a month needs 21. The others: 28 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 202410 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Jul 202321 of 31 days measured; a month needs 22. The others: 10 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.

Le Robert's worst months

MonthUS AQIDays measuredWorld rank
February 2024 6416.2 µg/m³27 of 29303rdof 2,486
July 2026 5812.9 µg/m³31 of 31739thof 2,784
August 2026 5812.9 µg/m³30 of 31492ndof 2,896
November 2023 5410.7 µg/m³26 of 30485thof 2,243
July 2024 5410.6 µg/m³27 of 31619thof 2,566
August 2023 5310.4 µg/m³27 of 31552ndof 1,980

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.

Le Robert's worst days

DayUS AQI
10 Aug 2026 15256.9 µg/m³
24 Dec 2024 14653.9 µg/m³
25 Feb 2024 13549.3 µg/m³
11 Aug 2026 12846.4 µg/m³
1 Feb 2024 12645.5 µg/m³
2 Feb 2024 11240.1 µg/m³
25 Dec 2024 11039.3 µg/m³
31 May 2026 9130.7 µg/m³
1 Jun 2026 9030.1 µg/m³
25 Dec 2023 9030.0 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, Le Robert, Martinique, 1 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/mq/le-robert/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.

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

Updated 2026-10-12 20:07 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).