The Bureau of Meteorology (BoM) has officially declared that an El Niño weather pattern is now underway in the Pacific Ocean, with forecasters warning it could become one of the strongest events recorded in modern history.

While much of Australia has experienced a relatively wet start to winter, experts say El Niño is likely to influence weather conditions throughout the second half of 2026, increasing the likelihood of hotter temperatures, reduced rainfall, and elevated bushfire risks across many parts of the country.

What Is El Niño?
El Niño is a naturally occurring climate pattern that develops when sea surface temperatures in the central and eastern Pacific Ocean become significantly warmer than average. These changes affect global weather systems and can have a major influence on Australia’s climate.
Historically, El Niño events have been associated with below-average rainfall, particularly across eastern and southern Australia, along with warmer daytime temperatures and longer periods of dry weather.

What Could Australians Expect?
According to the Bureau of Meteorology, forecasts for the coming months suggest:
– Higher-than-average temperatures across much of Australia
– Reduced winter and spring rainfall in many southern and eastern regions
– Increased risk of drought conditions developing
– Greater bushfire potential as vegetation dries out
– Higher chances of heatwaves during the warmer months

However, meteorologists caution that every El Niño event is different, and local weather outcomes can still vary depending on other climate influences.

Bushfire Concerns Return to Focus
One of the most significant concerns surrounding the newly declared El Niño is the potential for an earlier and more intense bushfire season.
After several years dominated by wetter La Niña conditions, many regions have experienced substantial vegetation growth. If prolonged dry conditions develop, this vegetation could become additional fuel during the summer fire season.
Emergency services and preparedness experts are encouraging households and businesses to review their bushfire plans, clear potential hazards around properties, and stay informed through official weather and emergency updates.

Climate Change Adds Another Layer
Scientists have also highlighted that El Niño is now developing in a climate that is significantly warmer than in previous decades.
While El Niño itself is a natural climate cycle, experts warn that climate change may amplify some of its impacts, including extreme heat events, drought severity, and bushfire conditions.
As Australia moves through winter and into spring, the Bureau of Meteorology will continue monitoring ocean and atmospheric conditions closely.

Staying Prepared
Although El Niño does not guarantee drought, heatwaves, or major bushfires, it does increase the likelihood of these conditions occurring.
For homeowners, land managers, and communities in bushfire-prone areas, now is an ideal time to review emergency plans, maintain properties, and ensure they are prepared for a potentially challenging summer ahead.
Preparedness remains one of the most effective ways to reduce risk and build resilience as Australia enters what could be a significant El Niño year.