• Thu. Aug 18th, 2022

Perth is set to sizzle over the next few days before cooling down in time for Christmas Day. Meanwhile the north is bracing for dangerous flooding but the good news is a cyclone is “unlikely”.

Dec 18, 2020

Temperatures in Perth are set to nudge 40 degrees Celsius in the lead up to Christmas but an eleventh-hour reprieve will see it cool down to a more pleasant 31C on Christmas Day.
Key points:

  • Temperatures are set to soar above 40C in inland parts of WA
  • Northern parts of the Kimberley are bracing for a deluge of rain
  • The good news is the bad weather is unlikely to become a cyclone

A trough will drag hot air down the west coast during the week before moving inland on Christmas Eve, allowing sea breezes to bring a mild reprieve on Friday.
Bureau of Meteorology (BOM) Senior Forecaster Steph Bond said: “On Tuesday, Wednesday and Thursday we’ll have hot east to north-easterly winds but by Friday we’ll start the day off in more of an onshore flow.”
Perth residents are expected to flock to Cottesloe Beach in the lead up to Christmas.(ABC News: Hugh Sando)
“Then it will get to a nice top of 31 degrees.”
However areas inland from the West Coast won’t be as lucky, soaring above 40C in the lead up to and on Christmas Day.
Perth Forecast

  • Saturday: Min 18 Max 35
  • Sunday: Min 16 Max 32
  • Monday: Min 14 Max 34
  • Tuesday: Min 18 Max 38
  • Wednesday: Min 22 Max 39
  • Thursday: Min 22 Max 38
  • Friday: Min 18 Max 31

‘Dangerous’ flooding for the north
Meanwhile the north of the state is preparing for a deluge over the weekend with a tropical low set to bring up to half a metre of rain and gusty storms to northern parts of the Kimberley.
The low currently lies within the monsoon trough near Darwin and is expected to move towards the Kimberley during the weekend.
The BOM has warned that up to 500 millimeters of rain is possible in some areas, a once in a five to 10 year event, which is likely to trigger “widespread and dangerous” flooding.
Rain has already forced the closure of several roads in the Kimberley.(Supplied: Trinda Kunzli-Rix)
“(The region) is already quite saturated so it won’t take much for rivers to rise quite quickly,” said Ms Bond.
While the low will bring heavy rainfall and strong winds, especially on Sunday and Monday, it is unlikely to have enough time over water to intensify into a cyclone before moving inland.
“The chance of it moving offshore later in the week is also fairly low,” Ms Bond said.
“While it’s over land it does weaken and at this stage it has a very low chance of moving offshore again next week.”
Regional Christmas Forecast
A minimum of 25C and a maximum of 34C is forecast for Broome with the possibility of showers and thunderstorms.
Kununurra is set for a minimum of 23C and a maximum of 35 C and may also experience showers and storms.
There will be no rain, and it will be mostly sunny in other areas:

  • Port Hedland Min 26, Max 38
  • Karratha Min 27, Max 35
  • Exmouth Min 25, Max 39
  • Newman Min 23, Max 37
  • Carnarvon Min 24, Max 32
  • Meekatharra Min 26, Max 41
  • Geraldton Min 18, Max 30
  • Perth Min 18, Max 31
  • Mandurah Min 18, Max 29
  • Bunbury Min 15, Max 29
  • Busselton Min 15, Max 29
  • Albany Min 17, Max 22
  • Esperance Min 19, Max 34
  • Kalgoorlie Min 23, Max 41