Air quality in Kuala Lumpur today
The air in Kuala Lumpur (Malaysia) now and over the next 48 hours: the US AQI and the European AQI, fine particles (PM2.5, PM10), ozone and nitrogen dioxide, compared with the WHO 2021 guidelines, with what it means for outdoor sport, children, older people and open windows.
These numbers are more than 7 hours old, so they are hidden. Open the live map for the current air. Open the air map centred on Kuala Lumpur
AQI right now
Unhealthy for sensitive groups. Main pollutant: Nitrogen dioxide (NO₂), 1.3× the WHO guideline.
What to do today
- Outdoor sport Shorten long or intense efforts; train when the AQI is lowest.
- Children, older people, asthma Limit long or intense activity outdoors; keep reliever inhalers at hand.
- Windows Air briefly at the cleanest hour, otherwise keep closed.
AQI in Kuala Lumpur hour by hour, next 48 hours
- Good
- Moderate
- Unhealthy for sensitive groups
- Unhealthy
- Very unhealthy
- Hazardous
Cleanest hour in the next 24 h: Mon 06:00 (AQI 63). Worst hour: Sun 11:00 (AQI 110).
US AQI per hour, local time. Bars coloured by category.
Compared with the WHO 2021 guidelines
| Pollutant | Next 24 h | WHO guideline | Ratio |
|---|---|---|---|
| PM2.5 | 17 µg/m³ | 15 µg/m³ | 1.1× |
| PM10 | 17 µg/m³ | 45 µg/m³ | within |
| Nitrogen dioxide (NO₂) | 34 µg/m³ | 25 µg/m³ | 1.3× |
| Ozone (O₃) | 94 µg/m³ | 100 µg/m³ | within |
PM2.5, PM10 and NO₂: 24-hour mean of the forecast against the 24-hour guideline; ozone: highest 8-hour mean against the 8-hour guideline.
Forecast for Sun 11:00 local time · updated 2026-10-25 03:41 UTC
Air quality map around Kuala Lumpur
Live PM2.5 field (NOAA GEFS-Aerosols): a different model, so it can disagree with the numbers above by a few units.
More about Kuala Lumpur
Kuala Lumpur: all live layers · UV index in Kuala Lumpur today
Bad air alert for Kuala Lumpur
Air quality alerts are part of LayEarth Pro: one push the evening before the forecast US AQI in your city goes above your level, so you can move a run, a school trip or an open window in time. 7-day free trial, then 9 USD a month.
Questions
- What is the AQI in Kuala Lumpur right now?
- US AQI 110 (Unhealthy for sensitive groups), European AQI 36; PM2.5 13 µg/m³ (Sun 11:00).
- Is it safe to exercise outdoors in Kuala Lumpur today?
- Shorten long or intense efforts; train when the AQI is lowest.
- What is the main pollutant in Kuala Lumpur?
- Nitrogen dioxide (NO₂), 1.3× the WHO guideline.
- Where do the numbers come from?
- The CAMS global air-quality forecast of the Copernicus Atmosphere Monitoring Service, read through Open-Meteo: a model on a ~40 km grid, not a monitoring station. Where a nearby monitor disagrees, the monitor is right.
Nearby cities
Johor Bahru · George Town (Penang) · Singapore · Medan · Langkawi · Krabi
How it is computed
Hourly CAMS forecast (Copernicus) for the coordinates of Kuala Lumpur via Open-Meteo; US AQI per the US EPA breakpoints, European AQI per the EEA bands, WHO 2021 air-quality guidelines. The page is rebuilt every 3 hours. Live map.