Haze season in Malaysia: whose fires, which months, what to watch

Understanding the source explains the season.

The FCDO states that "forest fires in Indonesia can cause haze between June and October", and that "haze can cause disruption to local travel, regional air travel and to schools".

From the Indonesian side the same advice describes fires "mostly on Sumatra and Borneo" generating "a widespread haze that affects air quality throughout the country" — and notes that "many fires burn all year in the peat-rich soil". Peat fires are the reason this is a season rather than an incident: they smoulder underground and are extremely hard to extinguish.

So the haze is transboundary by nature. Malaysian air quality in those months is partly a function of land management on another country's islands, which is also why it varies so much year to year.

Source: FCDO — Malaysia travel advice, extreme weather and natural disasters

The FCDO points at a specific instrument rather than a general warning: "monitor the Air Pollutant Index Management System (APIMS) updates and health advisories issued by the Malaysian Department of Environment".

That is the useful habit. APIMS publishes readings by station, so it answers the question that actually matters — what the air is doing where you are, today — rather than whether "the haze" is happening in the abstract.

Separately, and all year rather than seasonally, the FCDO notes that "high levels of air pollution in major towns and cities in Malaysia may make respiratory conditions worse". Urban air and haze are two different problems that happen to overlap for part of the year.

Source: FCDO — Malaysia travel advice, air pollution

Here is the hard edge, and we would rather you hear it now.

The people most affected by haze are those with existing respiratory conditions — asthma most obviously. Pre-existing conditions are a general exclusion on the Regency Assurance plans, as they are across this market. A policy bought before a move does not become cover for a condition you already had, however much the air worsens it.

That is not a reason to skip cover. It is a reason to be precise about what it is for: the new and the unexpected, not the managed and the known. If asthma is part of your picture, the planning that matters is medication supply, an action plan, and knowing which months to expect — not an insurance product.

To be clear about scope: we do not sell travel-disruption or cancellation cover, and nothing here is medical advice. We are an insurance introducer for international health and life cover for people.

The honest caution on this page: pre-existing conditions are excluded, so a respiratory condition you already have is not something cover will pick up when the air turns. Cover is governed by the Regency Assurance policy wording.