Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:26 PM EDT on Saturday 06 December 2025
Valid for Saturday 06 December 2025 to Saturday 06 December 2025
Warning for the following areas:
Hunter, Metropolitan, Illawarra, South Coast and Central Tablelands
Cancellation for the following areas:
Southern Tablelands
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.
Temperatures in the mid to high thirties and overnight minimum temperatures in the mid teens to low twenties. Following the change, maximum temperatures dropping to the high twenties, minimum temperatures in high teens.
Severe heatwave conditions easing over the weekend as a cooler change extends across the State. Locations likely to be impacted include Sydney, Camden, Campbelltown, Gosford, Hornsby, Liverpool, Mona Vale, Nowra, Richmond and Wollongong.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 07 December 2025
Forecast
Mount Vernon (33.8624°S, 150.8079°E, 101m AMSL) set as my default location ›
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7 day forecast
Today: Partly cloudy. Medium chance of showers, most likely late this afternoon and evening. The chance of a thunderstorm early this morning. Winds W/NW 20 to 30 km/h shifting SE 35 to 50 km/h during the morning then decreasing to 20 to 30 km/h in the late afternoon.
Forecast for Mount Vernon (33.8624°S, 150.8079°E, 101m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary 
Minimum 22° 15° 15° 17° 16° 16° 16° Maximum 25° 31° 39° 30° 24° 25° 31° Chance of rain 40% 5% 5% 50% 80% 90% 90% Likely amount < 1mm < 1mm < 1mm 1-5mm 1-5mm 10-20mm 1-5mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating Moderate High High Moderate - - - 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 16
(km/h)20
(km/h)8
(km/h)17
(km/h)4
(km/h)12
(km/h)10
(km/h)18
(km/h)15
(km/h)18
(km/h)9
(km/h)13
(km/h)8
(km/h)13
(km/h)Wind direction S ESE N ENE W ESE SSW ESE S SSE S ESE NNE E Relative humidity 52% 51% 71% 42% 53% 18% 67% 50% 76% 66% 81% 79% 81% 53% Dew point 13°C 11°C 15°C 15°C 16°C 9°C 16°C 17°C 16°C 16°C 17°C 20°C 19°C 19°C -
Sunrise and sunset times
Sunrise / Sunset for Mount Vernon (33.8624°S, 150.8079°E, 101m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter 5:10am EDT 5:39am EDT 7:58pm EDT 8:27pm EDT 10:40pm EDT 7:23am EDT 
Waning gibbous
Last quarter Dec 12 New moon Dec 20 First quarter Dec 28 -
Warnings
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Temperature for next 7 days
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Rain for next 7 days
