Is the air quality good in Kuala Lumpur?
As of October 8, 2026, at 8:00 PM (local time), air quality in Kuala Lumpur, Malaysia is very unhealthy, with an AQI of 203, driven by traffic emissions, regional haze, and weather conditions.
Air quality is dynamic and, like the weather, can change frequently, Kuala Lumpur ranked as the most polluted major city in the world on Thursday night.
Click here for a real-time air quality map of Kuala Lumpur.
Although today's air quality is poor, it is important to note that the average PM2.5 concentration in 2025 for Kuala Lumpur was 15.7 µg/m³, corresponding to an AQI of 58 (“Moderate”), and was 3.1 times the WHO annual guideline of 5 µg/m³.
Kuala Lumpur, Malaysia, ranked as the most polluted major city as of October 8, 2026, at 8:00 PM (local time). Source: IQAir.
When will air quality improve in Kuala Lumpur?
Air quality in Kuala Lumpur is forecasted to improve by tomorrow, returning to the moderate range.
Hourly air quality forecast for Kuala Lumpur, Malaysia as of October 8, 2026. Source: IQAir.
However, this improvement may be temporary, as smoke from fires in Sumatra and Kalimantan continues to affect Peninsular Malaysia, with an ongoing risk of further transboundary haze.
Air quality map of Kuala Lumpur, Malaysia, as of October 8, 2026. Source: IQAir.
What is causing poor air quality in Kuala Lumpur?
Kuala Lumpur’s poor air quality is being worsened by smoke from fires in Sumatra and Kalimantan, Indonesia. Moderate to dense smoke haze is affecting parts of Peninsular Malaysia, with prevailing winds allowing pollution from these fires to spread across national borders (1).
Dry weather across much of the region favors continued fire activity. El Niño is also increasing the risk of hotter conditions and below-normal rainfall, which can prolong fires and haze. Southeasterly to southerly winds can carry additional smoke toward Malaysia, while limited rainfall in burning areas reduces opportunities to suppress fires and clear the air (2).
Fire smoke contains fine particulate matter (PM2.5), that can remain airborne and travel long distances. Smoke transported above the ground can mix downward as the atmosphere warms during the day, increasing particle concentrations in the air people breathe. This means air quality can worsen even when the fires are far from Kuala Lumpur (3).
How can I protect myself from poor air quality?
- Get a free air quality app for real-time air quality alerts and forecasts.
- Shut doors and windows and set the HVAC to recirculate mode.
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Contribute to your community’s outdoor air quality data.
- Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask.
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Run a high-performance air purifier to filter particles, gases, and other pollutants.
