The Bureau of Meteorology says some showers and thunderstorms are likely for large parts of central and northern Queensland, a mostly dry day is expected for Canberra and cloudy conditions are forecast for coastal NSW, including Sydney.
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Brisbane is most likely to avoid heavy rainfall on December 25, according to BoM.
"We may see one or two of these showers reach inland as far as Canberra - although rain looks reasonably unlikely for the nation's capital, " a BoM spokesperson said.
Melbourne and Hobart will feel the southeasterly winds and cooler-than-average temperatures on Christmas Day.
"Showers remain possible, especially in the morning, but hopefully clearing to brighter and drier conditions in the afternoon," he said.
But it's not all cloud and rain for Australia.
Adelaide should see some sunshine on Christmas afternoon, despite a cool start to the day.
While a low-pressure system is brewing inland across Western Australia, current predictions have it keeping away from Perth.
But BoM has predicted some showers and storms for the state's capital.
"Some afternoon showers and storms are likely across northern Western Australia, but at this stage they look to be sparsely spread with plenty of fine weather in the mix too," a spokesman said.
The Northern Territory is expected to feel some seasonal showers in the north.
"Although the risk of any Christmas impacts due to the remnants of Ex-Tropical Cyclone Jasper look very unlikely," a spokesman said.
Christmas Day weather across capital cities:
Adelaide: Partly cloudy in the morning. A top of 24 degrees with a low of 13 degrees.
Brisbane: Partly cloudy, a chance of showers and a thunderstorm. Maximum temperature of 32 degrees and a minimum of 22 degrees.
Canberra: Partly cloudy, with a chance of showers. Temperatures will reach a maximum temperature of 24 degrees but won't drop below 13 degrees.
Darwin: Partly cloudy, with a chance afternoon shower or thunderstorm. Temperatures will reach a top of 36 degrees, but won't drop below 28 degrees.
Hobart: Cloudy with the chance of a shower or two. A low of 11 degrees with a top of 18 degrees.
Melbourne: Partly Cloudy, with the chance of a shower. Temperatures could reach 21 degrees, with a low of 15 degrees.
Perth: Partly cloudy, northeasterlies of 15 to 20 kilometres per hour. A maximum temperature of 32 degrees with a minimum of 21 degrees.
Sydney: Cloudy and a high chance of showers. A minimum temperature of 19 degrees and maximum temperature of 26 degrees.