Four Victorian districts have been handed a total fire ban for Christmas Day as authorities remain on high alert.
The bans apply to the Wimmera, North Central, Central and South West districts for 24 hours on Friday, with significant winds and temperatures in the high 30s expected.
Those regions have also been issued a severe fire danger rating.
Country Fire Authority chief fire officer Joe Buffone said safety should be the first priority.
"We know this is an important day for Victorian families to get together but we need to make sure everyone uses common sense and exercises caution in the hot conditions," he said.
"That means following total fire ban restrictions, which means no campfires, no solid fuel barbecues, and no candles outdoors."
Firefighters were on Christmas Eve still battling two out-of-control blazes in Victoria, including the Jamieson Track fire near the tourist town of Lorne that was sparked by lightning.
Incident controller Alistair Drayton urged both locals and tourists in the area to know their fire plans.
"In an environment like this, as beautiful as it is, there is fire risk which needs to be considered," he said.
The Barnawartha blaze that destroyed four homes is also still out of control.
South Australian firefighters are also on high alert for Christmas Day bushfires, with hot and windy conditions predicted for much of the state.
The mercury is forecast to reach 38C in Adelaide, with strong northerly winds forecast throughout the morning.
A significant change is tipped to arrive mid-afternoon, bringing cooler temperatures and rain but also very gusty southerly winds and possible lightning storms.
Total fire bans are in place in the northwest pastoral, northeast pastoral, west coast, eastern Eyre Peninsula, Flinders, mid north, Mount Lofty ranges, Yorke Peninsula, Riverland, Murraylands, upper south east and lower south east districts.
The state's south east is tipped to be most at risk of bushfire activity but firefighters will be on standby across the state to deal with any flare-ups.
