SmogRank / Lebanon / Beirut / Beirut

Beirut, month by month

Beirut has a measured daily mean on 328 days since 15 November 2025. Its worst month was August 2026, at 81 US AQI (25.2 µg/m³), 162nd of 2,896 cities on that month's world ranking. Its cleanest was February 2026, at 52 US AQI (9.6 µg/m³).

Every month since 2025

202664 so far283 days measured492nd of 2,791 in the world
Jan64#700Feb52#1,508Mar59#1,037Apr64#526May59#508Jun67#282Jul71#342Aug81#162Sep62#362Oct59#299
2025too few days for a mean (a year needs 256)45 days measured
JanFebMarAprMayJunJulAugSepOctNov14 daysDec67#605
Each square is a month's mean PM2.5 in US AQI from Beirut'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 Beirut marked; each year, the year's. A dashed square is the running month, so far.
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

1 month
MonthWhy
Nov 202514 of 30 days measured; a month needs 21. The others: 2 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.

Beirut's worst months

MonthUS AQIDays measuredWorld rank
August 2026 8125.2 µg/m³31 of 31162ndof 2,896
July 2026 7119.7 µg/m³31 of 31342ndof 2,784
December 2025 6717.9 µg/m³31 of 31605thof 3,006
June 2026 6717.5 µg/m³30 of 30282ndof 2,497
January 2026 6416.0 µg/m³31 of 31700thof 2,617
April 2026 6416.0 µg/m³30 of 30526thof 2,941

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.

Beirut's worst days

DayUS AQI
7 Jan 2026 11240.1 µg/m³
21 Aug 2026 11240.1 µg/m³
5 Dec 2025 10637.4 µg/m³
25 Dec 2025 10637.4 µg/m³
29 Nov 2025 10537.1 µg/m³
18 Apr 2026 10336.4 µg/m³
27 Aug 2026 10336.3 µg/m³
10 Oct 2026 10236.1 µg/m³
22 Aug 2026 9935.1 µg/m³
6 Dec 2025 9935.0 µg/m³

Daily means, the highest since 15 Nov 2025; 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, Beirut, Lebanon, 15 Nov 2025 – 11 Oct 2026. Monitor data from AirGradient via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/lb/beirut/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.

Beirut 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).