Only Serian records unhealthy IPU this morning

SERIAN, 29 SEPTEMBER 2026 —

Kuala Lumpur: The Serian air quality monitoring station in Sarawak recorded an Air Pollution Index (API) of 151 at 7:00 a.m.

Of the 68 monitoring stations across the country, 54 recorded moderate air quality with API readings between 51 and 100, while six stations reported good air quality with readings between 0 and 50. No stations reported "very unhealthy" or "hazardous" levels. Among the moderate readings, Pasir Gudang recorded the highest at 86, followed by Sandakan at 79, with other locations in Johor and Pahang also registering elevated but moderate levels.

The Malaysian Meteorological Department (MetMalaysia) forecast that air quality conditions are expected to improve gradually following rain and thunderstorms predicted to begin in the afternoon across several regions. For the Federal Territories and Selangor, most areas are expected to experience clear weather in the morning before rain and thunderstorms develop in the afternoon. In Kuala Lumpur, clear conditions are forecast for the morning and night, with thunderstorms expected in some areas by the afternoon.

Putrajaya is predicted to remain clear and dry throughout the day, while Petaling and Shah Alam are expected to see rain in the afternoon after dry mornings and nights. In Selangor generally, thunderstorms and rain are forecast to be more intense in rural areas during the afternoon and night.

The weather agency advised the public, particularly road users, to remain vigilant regarding sudden weather changes due to the potential for slippery roads and limited visibility leading up to the afternoon peak hour. The improvement in air quality is directly linked to the anticipated rainfall, which is expected to clear pollutants from the atmosphere in the affected regions.

Related: Malaysian Meteorological Department · Serian