Weather Warning

This warning affects:Central Tablelands, Central West Slopes & Plains, Hunter, Illawarra, Lower Western, Metropolitan, Mid North Coast, North West Slopes & Plains, Northern Rivers, Northern Tablelands, Riverina, Snowy Mountains, South Coast, South West Slopes and Southern Tablelands. View More

Heatwave warning

  • Issued by the Bureau of Meteorology

IDN21013

Australian Government Bureau of Meteorology
New South Wales

Heatwave warning

Issued at 2:45 AM EDT on Friday 19 Dec 2025.

Heatwave Situation for day 1

Heatwave Situation for day 2

Heatwave Situation for day 3

Heatwave Situation for day 4

In northern districts expect maximum temperatures in the high thirties to low forties and overnight minimum temperatures in the mid teens to mid twenties. Heatwave conditions are expected to contract to the east over the coming week. About the south and ranges maximum temperatures in the mid twenties to high thirties. Overnight minimum temperatures generally in the mid teens to low twenties. Temperatures continue to decrease over the weekend, with severe heatwave conditions expected ease early next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Dubbo, Goulburn, Moree, Nowra, Orange, Tamworth and Wollongong.

Safety Advice:

  • Extreme heatwaves can be dangerous for everyone.
  • Severe heatwaves can be dangerous for many people, especially older people, babies, children, pregnant and breastfeeding women, people with medical conditions and people who are unwell.
  • Seek a place to keep cool, such as your home, a library, community centre or shopping centre.
  • Close your windows and draw blinds, curtains or awnings early in the day to keep the heat out of your home.
  • If available, use fans or air-conditioners to keep cool.

The next heatwave warning will be issued by 3:00pm EDT on Saturday 20 December 2025