Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025
Forecast
Lyons (35.3395°S, 149.0761°E, 639m AMSL) Lyons,ACT set as my default location ›
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7 day forecast
Lyons 7 day forecast
Today: Cloudy. Very high chance of rain. A thunderstorm likely in the afternoon and evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds NW 20 to 30 km/h.
Forecast for Lyons (35.3395°S, 149.0761°E, 639m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary 
Minimum 18° 14° 10° 10° 10° 7° 8° Maximum 27° 27° 27° 28° 27° 25° 28° Chance of rain 90% 5% 10% 5% 5% 5% 5% Likely amount 10-20mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating Moderate Moderate Moderate 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 13
(km/h)17
(km/h)12
(km/h)18
(km/h)10
(km/h)16
(km/h)8
(km/h)20
(km/h)6
(km/h)10
(km/h)9
(km/h)9
(km/h)8
(km/h)12
(km/h)Wind direction NNW NNW NNW NW WNW W NNW WNW E NNE SSE ESE E ENE Relative humidity 80% 68% 50% 33% 48% 23% 51% 23% 54% 24% 49% 24% 55% 26% Dew point 17°C 19°C 9°C 9°C 7°C 3°C 8°C 4°C 8°C 3°C 3°C 2°C 6°C 5°C First light 5:15am 5:15am 5:16am 5:16am 5:17am 5:17am 5:18am Sunrise 5:45am 5:45am 5:46am 5:46am 5:47am 5:47am 5:48am Sunset 8:18pm 8:19pm 8:19pm 8:20pm 8:20pm 8:20pm 8:21pm Last light 8:48pm 8:49pm 8:49pm 8:49pm 8:50pm 8:50pm 8:51pm -
Sunrise and sunset times
Sunrise / Sunset for Lyons (35.3395°S, 149.0761°E, 639m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase First quarter Full moon Last quarter New moon 5:15am EDT 5:45am EDT 8:18pm EDT 8:48pm EDT 6:11am EDT 9:33pm EDT 
Waxing crescent
First quarter Dec 28 Full moon Jan 03 Last quarter Jan 11 New moon Jan 19 Lyons sun & moon times
SundayFirst light5:15am
EDTSunrise5:45am
EDTSunset8:18pm
EDTLast light8:48pm
EDTMoon phase
Next OccurrenceMoon riseSun
6:11am
EDTMoon setSun
9:33pm
EDTFirst quarterFirst quarter Sun
Dec 28
Full moonFull moon Sat
Jan 03
Last quarterLast quarter Sun
Jan 11
New moonNew moon Mon
Jan 19
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Warnings
Weather Warnings
Sat 2:43pm UTC Severe weather advice ACTSat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025Sat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025Sat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025Sat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025Sat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025Sat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025Sat 2:43pm UTC Severe weather advice ACTAustralian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:43 PM EDT on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Northern Rivers, Mid North Coast, Hunter and Metropolitan
Warning for the following areas:
Northern Tablelands, Illawarra, South Coast, Central Tablelands, Southern Tablelands, Snowy Mountains, North West Slopes and Plains, Central West Slopes and Plains, South West Slopes, Riverina, Lower Western and Upper Western
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.
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, and along the coast, 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 towards the middle of next week. Locations likely to be impacted include Sydney, Armidale, Batemans Bay, Goulburn, Moree, Nowra, Orange, Tamworth, Wollongong and Yass.
The next heatwave warning will be issued by 3:00pm EDT on Sunday 21 December 2025For extended forecasts and greater detail visit weather zone° -
Temperature for next 7 days
0 Sunday Sunday 27 1 Monday Monday 27 2 Tuesday Tuesday 27 3 Wednesday Wednesday 28 4 Thursday Thursday 27 5 Friday Friday 25 6 Saturday Saturday 28 7 Saturday Saturday 28 -
Rain for next 7 days
0 Sunday Sunday 20 1 Monday Monday 0 2 Tuesday Tuesday 0 3 Wednesday Wednesday 0 4 Thursday Thursday 0 5 Friday Friday 0 6 Saturday Saturday 0 7 Saturday Saturday 0
