Sydney weather: When heatwave will end as temperatures hit 40C

When HELL’s NSW heat wave will end amid fears workers turning on their air conditioning could cause blackouts

  • Sydney experiences a heat wave in the fall
  • Air conditioners can put pressure on the energy supply

An unusually hot autumn sweeping Sydney will keep residents sweltering at least until Wednesday, amid warnings that high air conditioner usage could trigger blackouts.

A burst of heat at the end of the season in NSW sent the mercury reaching 40°C in some parts of the Harbor City – at the airport and Penrith. It was the first time since November 2020 that the mercury had cracked 38C.

The stinking hot weather will continue all night in Sydney, with temperatures still expected to hover around 30°C at 9pm and possibly around 20°C at midnight.

The lingering heat could strain the state’s energy supply as people come home from work and turn on air conditioners and fans for lighting.

A burst of heat at the end of the season in NSW on Monday could see Sydney reach 38C

Sydney's autumn heat wave has seen the highest temperatures in more than two years

Sydney’s autumn heat wave has seen the highest temperatures in more than two years

Temperatures in Sydney are expected to still be around 30C on Monday at 9pm and possibly around 20C by midnight

Temperatures in Sydney are expected to still be around 30C on Monday at 9pm and possibly around 20C by midnight

On Tuesday the mercury drops slightly to 34C, with temperatures will remain in the high 20s for the rest of the week, and possible showers predicted on Saturday.

However, a cooler southerly wind is expected to reach the city on Wednesday.

At 11am AEDT on Monday, the temperature in western Sydney was already 34°C, at the airport 33°C and in the city just over 31°C.

But the state’s highest temperature at the time recorded was 35.8C in Bourke, in the state’s northwest.

At 11am AEDT on Monday, temperatures were already 34°C in western Sydney, 33°C at the airport and just over 31°C in the city

At 11am AEDT on Monday, temperatures were already 34°C in western Sydney, 33°C at the airport and just over 31°C in the city

The mercury drops slightly to 34 degrees on Tuesday, while temperatures remain around 20 degrees for the rest of the week

The mercury drops slightly to 34 degrees on Tuesday, while temperatures remain around 20 degrees for the rest of the week

Temperatures will continue to rise and should peak around 38C in central Sydney and as high as 40C in some suburbs.

Monday’s scorching and windy weather also contributed to heightened fire hazard warnings across the state.

There were already 37 fires in the state as of 11 a.m., and seven of the state’s 21 fire districts were on total fire bans through midnight Monday.

Sydneysiders flocked to the beaches to get relief from the scorching heat on Monday

Sydneysiders flocked to the beaches to get relief from the scorching heat on Monday

A beachgoer went outside to train on Monday

A beachgoer went outside to train on Monday

Capitals – four-day forecast

SYDNEY:

Monday: Sunny. Minimum 21, maximum 36

Tuesday: Partly cloudy. Minimum 21, maximum 34

Wednesday: Sunny. min 19, max 31

MELBOURNE:

Monday: Partly cloudy. Min16, Max24

Tuesday: Partly cloudy. min 15, max 21

Wednesday: Shower or two. Min14, Max17

BRISBANE:

Monday: Partly cloudy. Min20, Max31

Tuesday: Sunny. Minimum 21, maximum 33

Wednesday: Partly cloudy. Minimum 23, maximum 34

ADELAIDE:

Monday: Possible shower. Min15, Max22

Tuesday: Cloudy. min14, max21

Wednesday: Shower or two. min14, max21

CANBERRA:

Monday: Sunny. Min 15, Max 29

Tuesday: Partly cloudy. Min13, Max25

Wednesday: Partly cloudy. min 11, max 20

PERTH:

Monday: Sunny. Minimum 15, maximum 29

Tuesday: Sunny. Min 15, Max34

Wednesday: Shower or two. Min20, Max31

DARWIN:

Monday: showers. Possible thunderstorm. Minimum 26, maximum 31

Tuesday: showers. Possible thunderstorm. Minimum 25, maximum 31

Wednesday: showers. Possible thunderstorm. Minimum 25, maximum 32

HOBART:

Monday: Decreasing showers. Minimum 16, maximum 23

Tuesday: showers. Getting windy. Min12, Max17

Wednesday: Shower or two. min8, max15

Source: Bureau of Meteorology