SmogRank / Zimbabwe / Harare / Harare

Harare, month by month

Harare has a measured daily mean on 348 days since 22 August 2025. Its worst month was September 2026, at 111 US AQI (39.6 µg/m³), 58th of 2,981 cities on that month's world ranking. Its cleanest was March 2026, at 25 US AQI (4.5 µg/m³).

Every month since 2025

202661 so far244 days measured583rd of 2,793 in the world
Jan44#1,526Feb34#2,410Mar25#2,749Apr39#1,893May58#516Jun19 daysJul4 daysAug76#197Sep111#58Oct59#295
2025too few days for a mean (a year needs 256)104 days measured
JanFebMarAprMayJunJulAug10 daysSep8 daysOct79#235Nov62#590Dec33#2,474
Each square is a month's mean PM2.5 in US AQI from Harare'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 Harare 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

4 months
MonthWhy
Jul 20264 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks.
Jun 202619 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Sep 20258 of 30 days measured; a month needs 21. The others: 1 with readings for part of the day (a day needs 18 hours), 21 with under 18 hours of readings or readings that failed our checks.
Aug 202510 of 31 days measured; a month needs 22.

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

Harare's worst months

MonthUS AQIDays measuredWorld rank
September 2026 11139.6 µg/m³30 of 3058thof 2,981
October 2025 7923.9 µg/m³26 of 31235thof 2,614
August 2026 7622.4 µg/m³31 of 31197thof 2,896
November 2025 6215.0 µg/m³29 of 30590thof 2,715
May 2026 5813.1 µg/m³29 of 31516thof 2,874
January 2026 447.9 µg/m³31 of 311,526thof 2,617

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.

Harare's worst days

DayUS AQI
17 Sept 2026 17894.5 µg/m³
5 Sept 2026 17590.2 µg/m³
16 Sept 2026 16676.7 µg/m³
24 Sept 2025 16575.9 µg/m³
18 Sept 2026 15966.3 µg/m³
5 Sept 2025 15763.9 µg/m³
4 Sept 2026 15662.8 µg/m³
6 Sept 2026 15459.7 µg/m³
27 Aug 2025 15459.2 µg/m³
3 Sept 2026 15256.9 µg/m³

Daily means, the highest since 22 Aug 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, Harare, Zimbabwe, 22 Aug 2025 – 11 Oct 2026. Monitor data from IQAir and AirGradient via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/zw/harare/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.

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

Updated 2026-10-12 22:07 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).