No volcanic ash detected in Malaysian airspace

Malaysia has detected no indication that volcanic ash from Indonesia’s Anak Krakatau has entered its airspace, the national weather department said as it continues to monitor the eruption.

MetMalaysia said current observations do not show ash affecting Malaysian airspace. The department is tracking the situation through satellite data, atmospheric analysis and information from international volcanic ash advisory centres.

The update follows disruption to air travel in Indonesia after renewed activity at Anak Krakatau, in the Sunda Strait between Java and Sumatra.

Monitoring remains in place

Volcanic ash can present a serious risk to aircraft because it may affect visibility, navigation systems and engine performance. For that reason, aviation authorities monitor ash plumes closely and can alter routes or restrict operations when required.

MetMalaysia said it would issue warnings or advisories to the Civil Aviation Authority of Malaysia, the Royal Malaysian Air Force, airlines and airport operators if there were signs of a potential impact on Malaysian airspace.

The department’s assessment is based on current conditions and could change if wind direction, wind speed or volcanic activity changes.

Recent disruption centred on Indonesia

The Anak Krakatau eruption has already caused flight disruption in Indonesia, including temporary airport closures and cancelled or diverted flights involving Jakarta.

Malaysia has also been affected indirectly, with some flights to and from Indonesia adjusted because of conditions around Indonesian airports and flight paths.

However, an impact on services linked to Indonesia does not necessarily mean volcanic ash is present over Malaysia.

Haze is a separate issue

MetMalaysia has previously clarified that reduced visibility in parts of Malaysia, including Sarawak and areas of the west coast of Peninsular Malaysia, has been linked to transboundary haze rather than ash from Anak Krakatau.

That distinction matters because haze and volcanic ash have different sources, behaviour and implications for aviation and public health.

The public is advised to follow official weather and aviation updates rather than rely on social-media claims about the ash plume.

What it means for foreigners in Malaysia

There is currently no indication of volcanic ash in Malaysian airspace. Travellers with flights to or through Indonesia should still check directly with their airline before leaving for the airport, as route changes and cancellations can occur even when flights within Malaysia are operating normally.

10 September 2026