SmogRank / Malawi / Southern Region / Blantyre

Blantyre, month by month

Blantyre has a measured daily mean on 376 days since 19 September 2025. Its worst month was September 2026, at 162 US AQI (71.0 µg/m³), 4th of 2,981 cities on that month's world ranking. Its cleanest was March 2026, at 40 US AQI (7.2 µg/m³).

Every month since 2025

202688 so far273 days measured207th of 2,793 in the world
Jan69#518Feb61#803Mar40#2,314Apr61#594May70#290Jun83#177Jul104#81Aug117#42Sep162#4Oct100#29
2025too few days for a mean (a year needs 256)103 days measured
JanFebMarAprMayJunJulAugSep12 daysOct147#69Nov102#224Dec56#987
Each square is a month's mean PM2.5 in US AQI from Blantyre'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 Blantyre 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
Sep 202512 of 30 days measured; a month needs 21.

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

Blantyre's worst months

MonthUS AQIDays measuredWorld rank
September 2026 16271.0 µg/m³30 of 304thof 2,981
October 2025 14754.2 µg/m³31 of 3169thof 2,614
August 2026 11742.0 µg/m³31 of 3142ndof 2,896
July 2026 10436.8 µg/m³31 of 3181stof 2,784
November 2025 10236.1 µg/m³29 of 30224thof 2,715
June 2026 8326.1 µg/m³30 of 30177thof 2,497

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.

Blantyre's worst days

DayUS AQI
19 Sept 2025 218143.0 µg/m³
1 Sept 2026 216141.0 µg/m³
13 Sept 2026 197121.0 µg/m³
6 Sept 2026 196119.0 µg/m³
22 Sept 2025 195118.0 µg/m³
14 Sept 2026 193116.0 µg/m³
15 Sept 2026 193116.0 µg/m³
17 Oct 2025 192114.0 µg/m³
25 Sept 2025 187107.0 µg/m³
15 Oct 2025 186105.0 µg/m³

Daily means, the highest since 19 Sept 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, Blantyre, Malawi, 19 Sep 2025 – 12 Oct 2026. Monitor data from AirGradient via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/mw/blantyre/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.

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

Updated 2026-10-12 23:07 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).