Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:54 PM EDT on Monday 22 December 2025
Valid for Monday 22 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter, Northern Tablelands, Metropolitan and North West Slopes and Plains
Cancellation for the following areas:
Illawarra, Central Tablelands, Southern Tablelands, Central West Slopes and Plains and South Coast
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 mid to high thirties and overnight minimum temperatures in the mid teens to mid twenties. Heatwave conditions are expected to continue to contract to the northeast of the State over the coming days.
Severe heatwave conditions have eased about the southern coastal areas and the central ranges. Maximum temperatures are in the mid to high twenties with overnight minimum temperatures ranging from around ten degrees across the central ranges to the mid teens closer to the coast. Low intensity heatwave conditions may still affect these areas over the coming days. Locations likely to be impacted include Sydney, Armidale, Grafton, Gosford, Hornsby, Lismore, Liverpool, Mona Vale, Richmond and Taree.
The next heatwave warning will be issued by 3:00pm EDT on Tuesday 23 December 2025
Forecast
Gundy (32.0145°S, 150.9967°E, 227m AMSL) set as my default location ›
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Seven day forecast
Today: Mostly sunny. The chance of fog in the early morning. Slight chance of a shower along the coastal fringe, most likely in the early morning. Near zero chance of rain elsewhere. The chance of a thunderstorm about the Lower Hunter in the early morning. The chance of smoke haze in the late afternoon and evening. Light winds becoming W/SW 15 to 25 km/h in the morning then shifting SE 20 to 30 km/h in the late morning and afternoon. Overnight temperatures falling to between 17 and 21 with daytime temperatures reaching 30 to 37.
Forecast for Gundy (32.0145°S, 150.9967°E, 227m AMSL) Tue Wed Thu Fri Sat Sun Mon Summary 
Minimum 19° 16° 16° 14° 12° 11° 11° Maximum 37° 37° 33° 28° 29° 31° 35° Chance of rain 5% 40% 10% 10% 5% 5% 5% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating High High High High - - - Frost risk Nil Nil Nil Nil Nil Nil Nil 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 11
(km/h)24
(km/h)7
(km/h)18
(km/h)16
(km/h)20
(km/h)19
(km/h)27
(km/h)15
(km/h)24
(km/h)13
(km/h)26
(km/h)12
(km/h)26
(km/h)Wind direction W WSW SW WSW S S SSE SSE SSE SSE SSE SSE SSE SSE Relative humidity 68% 19% 67% 25% 63% 29% 57% 36% 58% 31% 55% 27% 55% 25% Dew point 21°C 9°C 18°C 13°C 17°C 12°C 12°C 11°C 12°C 9°C 12°C 9°C 13°C 11°C -
Warnings
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Sunrise and sunset times
Sunrise / Sunset for Gundy (32.0145°S, 150.9967°E, 227m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase First quarter Full moon Last quarter New moon 5:20am EDT 5:48am EDT 8:03pm EDT 8:31pm EDT 8:14am EDT 10:34pm EDT 
Waxing crescent
First quarter Dec 28 Full moon Jan 03 Last quarter Jan 11 New moon Jan 19 -
Temperature for next 5 days
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Rain for next 5 days
