Prosper in a dynamic world
Search

Early look at Australia’s Christmas forecast

 

A hot air mass building over Australia this week will set the stage for a quintessentially hot and sweaty Christmas in some parts of the country.

While large areas of Australia were kept unusually cool during November by frequent spells of cloud and rain, December has been noticeably clearer and drier for much of the country.

As a result of these clearer skies, hot air has been building across the Red Centre this week, with temperatures in the coming days likely to hit the low-forties in central Australia and near 50ºC over the far northwest.

This large pool of inland heat will also spread towards Australia’s southern and eastern states at times during the next fortnight, bringing busts of warm holiday weather to several capital cities.

This week, Adelaide is forecast to hit 30ºC on Thursday and 37ºC on Friday. As this stifling heat lingers into Friday night, the mercury is expected to still be around 30ºC at midnight before a cool change arrives early on Saturday morning.

Image: Adelaide’s weekly forecast graph showing a predicted temperature of just over 30ºC at midnight on Friday night.

Melbourne, Sydney, Canberra and Hobart will all get a taste of the warmth as well, with each city forecast to reach the low thirties on at least one day between Friday and Sunday.

Looking ahead, the hot air will retreat inland at the start of next week before making another pass over southern Australia in the leadup to Christmas.

Northeasterly winds will drag warm inland air towards Perth on Monday, December 20, pushing temperatures to the low thirties by the early afternoon.

Temperatures will gradually climb in Adelaide throughout the week and the heat spreads further east, with temperatures reaching the high-twenties from Wednesday and low-thirties by Friday. On Christmas Day, Adelaide could see the mercury hitting 36 to 37ºC, which would make it the city’s hottest Christmas in three years and one of its five hottest Christmas Days in the last 35 years.

Image: Forecast afternoon temperature and 24-hour accumulated rainfall on Christmas Day.

Victoria is also shaping up to be warm on Christmas Day, possibly reaching the low-thirties in Melbourne and the high-thirties in the state’s northwest.

Australia’s eastern capital cities look like they will escape a hot Christmas this year, with onshore winds likely to limit daytime heating and increase the likelihood of showers.

At this stage, Hobart will most likely be dry and reach the mid-twenties on Christmas Day, while Darwin has a chance of rain and thunderstorms. Weatherzone provides our clients with 14-day temperature and energy forecasts, for more information, please contact us at apac.sales@dtn.com.

Latest news

Satisfy your weather obsession with these news headlines from around the nation, and the world.

DTN Dangerous Thunderstorm Alerts in action with severe thunderstorms disrupting Perth industries

Severe thunderstorms impacted southwest WA and the Perth region on Sunday, December 14, 2025, triggering Dangerous Thunderstorm Alerts (DTA) by DTN for industries and businesses in the region. DTN operates Dangerous Thunderstorm Alerts (DTA) which alert businesses and industries to thunderstorms based on intensity and movement. These alerts provide advanced notice of thunderstorms moving into […]

How Australian East Coast port and maritime operations could be disrupted by tropical cyclones over the next two weeks

Port and maritime operations across Australia’s East Coast could be disrupted by increased tropical cyclone activity in the Coral Sea and southwest Pacific Ocean over the next two weeks. Meteorologists reference a large selection of Numerical Weather Prediction (NWP) models to forecast weather. A number of these NWP models are forecasting the development of tropical […]

Extreme fire danger and severe heatwave conditions spreading across SA, Victoria and NSW

Hot, dry and windy weather causing elevated fire danger and severe heatwave conditions are sweeping across southeastern Australia over the next three days, driving high energy demand and disruption to operations. Clear skies associated a large and slow-moving high pressure system have allowed hot air to build up over parts of northern, western and central […]

Heightened bushfire risk during the 2025-26 summer for WA, Victoria and NSW in latest AFAC Outlook

The Australian and New Zealand Council for fire and emergency services (AFAC) identified western and southern WA, Victoria and inland NSW as key regions that are at risk of heightened bushfire risk this summer. Parts of Australia have experienced severe soil moisture and rainfall deficiencies over the past months and years, while high fuel loads […]