Australian Government Bureau of Meteorology New South Wales TOP PRIORITY FOR IMMEDIATE BROADCAST Heatwave Warning Issued at 02:51 PM EDT on Tuesday 23 December 2025 Valid for Tuesday 23 December 2025 to Tuesday 23 December 2025 Warning for the following areas: Northern Rivers, Mid North Coast, Hunter and Northern Tablelands Cancellation for the following areas: Metropolitan and North West Slopes and Plains Safety Advice: 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. Maximum temperatures are in the high twenties to mid thirties and overnight minimum temperatures in the mid teens to low twenties. Severe heatwave conditions have peaked and are continuing to ease from the south and west as milder southeast to southwesterly winds extend across the State. Locations likely to be impacted include Dorrigo, Grafton, Gloucester, Lismore, Maitland, Murwillumbah, Taree, Tweed Heads and Yamba. The next heatwave warning will be issued by 3:00pm EDT on Wednesday 24 December 2025