Toxic Haze Engulfs Southeast Asia as Indonesian Wildfires Spread

Major cities across Southeast Asia are currently experiencing emergency level hazardous air quality due to the ongoing wildfires in Indonesia, as of early September 2026. The wildfires have resulted in air pollution that continues to worsen atmospheric conditions across the region, according to reports from The Independent Singapore News .

Air Quality Status Across Southeast Asia

1) Malaysia

In Malaysian Borneo, particularly in Sarawak, air pollution indices have reached hazardous levels, with Kuching and Serian recording Air Pollution Index (API) levels above 400 as of September 1, 2026. Al Jazeera reports that the ASEAN Specialized Meteorological Center has activated a Level 3 transboundary haze alert, its highest, affecting regions including Sarawak and Sabah.

2) Indonesia

In Kalimantan, central Indonesia, air quality has been deemed hazardous, with cities like Palangkaraya experiencing an Air Quality Index (AQI) as high as 780. Over 1,180 hotspots have been identified, pointing to widespread fire activity. Indonesia is intensifying aerial and ground firefighting efforts to curb the spread of these fires despite ongoing dry conditions aggravated by the El Niño effect.

3) Philippines

The Philippines has seen unhealthy to very unhealthy air quality in Metro Manila, with haze shifting toward the Visayas and Mindanao regions. By September 2, 2026, air quality in Metro Manila had slightly improved, though many areas remain vulnerable, according to the Philippine News Agency.

4) Singapore

Singapore is currently experiencing moderate haze, with PM2.5 readings indicating moderate levels of air pollution. Further haze is expected to persist over the coming days due to regional hotspot expansions in Sumatra and Kalimantan.

Governmental Responses and Outlook

1) Malaysia

The Malaysian government is employing cloud seeding and enhancing regional surveillance. At the ASEAN level, Malaysia is pushing for cooperative action to enforce open burning restrictions and establish a regional haze fund.

2) Philippines

The Department of Health has issued advisories on protective measures, such as wearing N95 masks and avoiding outdoor activities. Local governments are on heightened alert with operations centers in place.

The region is bracing for ongoing dry conditions, with potential rainfall between September 4 and 6 possibly offering some relief. However, sustained efforts and cooperation remain crucial to managing the haze's health impacts and environmental challenges.