Sydney, Melbourne, Brisbane weather: Aussie city shivers through its coldest day of 2025 as polar blast sends temperatures tumbling in Australia – so how cold will it get near you?

Sydney has recorded its coldest day of 2025 after a polar airmass, strong winds and showers send temperatures tumbling across Australia’s southeast. 

Temperatures in the Harbour City had reached just 10C by 9am on Wednesday, with a ‘feels like’ temperature of a frigid 5.3C. 

Even colder weather was recorded across Greater Sydney, with Mount Boyce in the Blue Mountains dropping to 2.5C at 9:30am, which felt like –2.9C due to icy winds. 

Light snow was reported on parts of the Blue Mountains, with more expected across the alpine region this long weekend. 

Terrey Hills on Sydney’s Northern Beaches reached just 8.7C at 9:30am, with temperatures feeling like 4.8C.

Temperatures peaked at a maximum of 15C, two degrees below the June average. 

Sydneysiders are in for a slight reprieve on Thursday, with temperatures to hit 17C. 

But on Friday, temperatures will plunge once again to a chilly 6C. 

Warmer weather is expected on Thursday, but will dip again on Friday (stock)

Temperatures in Sydney struggled to get over 10C at 9am on Wednesday, with a ‘feels like’ temperature of a frigid 5.3C (pictured is a Weatherzone map)

On the NSW coastline, a powerful low pressure system over the Tasman Sea is generating big swells along with powerful wind gusts and showers.

A hazardous surf warning is in place for the Byron Bay Coast, Coffs Coast, Macquarie Coast, Hunter Coast, Sydney Coast and Illawarra Coast, with gale or strong wind warnings for the entire NSW coastline. 

Further west, Perth recorded its wettest day of the year, and since July of 2024. 

Perth picked up 47.6mm of rain during the 48 hours ending at 9am AWST on Wednesday, with 33.2mm falling in the last 24 hours. 

This marked the city’s wettest day in 11 months. 

Bickley, southwest of Perth’s CBD, recorded 41mm in the 24 hours to 9am on Wednesday – the suburb’s heaviest daily rainfall in nine months.

The wet weather is set to ease on Thursday and Friday, however a cold front could impact the state’s southwest from early next week.

Perth saw its wettest day in a year, with 47mm of rain falling across Tuesday and Wednesday

Sydney  

Friday: Partly cloudy. Min 6 Max 18

Saturday: Mostly sunny. Min 10 Max 19 

Sunday. Partly cloudy. Min 9 Max 18

Monday. Partly cloudy. Min 7 Max 16

Melbourne

Friday: Showers increasing. Min 8 Max 14 

Saturday: Showers increasing. Min 9 Max 15

Sunday: Showers. Min 7 Max 13 

Monday: Showers. Min 6 Max 14

Sydneysiders will be heading into a cool King’s Birthday long weekend (stock)

A low pressure system in the Tasman sea is causing strong waves across the east coast

Hobart

Friday: Shower or two. Min 4 Max 14

Saturday: Shower or two. Min 7 Max 14

Sunday. Showers increasing. Min 5 Max 14

Monday. Showers. Min 9 Max 14

Adelaide

Friday: Showers. Min 8 Max 17 

Saturday: Showers. Min 9 Max 16 

Sunday: Showers. Min 7 Max 13 

Monday: Showers. Min 6 Max 15 

Canberra

Friday: Morning frost, cloudy. Min -2 Max 13 

Saturday: Shower or two. Min 2 Max 12 

Sunday: Showers. Min 2 Max 10 

Monday: Showers. Min 0 Max 9

The Blue Mountains in Greater Sydney recorded -2.9C on Wednesday morning (stock)

Darwin 

Friday: Mostly sunny. Min 21 Max 32 

Saturday: Sunny. Min 20 Max 31

Sunday: Mostly sunny. Min 22 Max 31 

Monday: Mostly sunny. Min 20. Max 31   

Brisbane 

Friday: Sunny. Min 9 Max 23

Saturday: Partly cloudy. Min 12 Max 24 

Sunday: Mostly sunny. Min 11 Max 23 

Perth  

Friday: Partly cloudy. Min 8 Max 19 

Saturday: Sunny. Min 7 Max 20 

Sunday: Sunny. Min 7 Max 21  

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