Australian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 17 December 2025
Valid for Wednesday 17 December 2025 to Wednesday 17 December 2025
Warning for the following areas:
Goldfields, Eucla, South Coastal, South East Coastal and Great Southern
Cancellation for the following areas:
South Interior and Central Wheat Belt
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.
Maximum temperatures ranging from the low thirties to mid forties and overnight minimum temperatures in the mid teens to mid twenties.
Severe heatwave conditions over southern central parts are expected to ease on Thursday as a trough and cooler change extends through to southeast WA.
Severe heatwave conditions have eased over the Central Wheat Belt and the South Interior. Locations likely to be impacted include Hopetoun, Kalgoorlie, Laverton and Ravensthorpe.
The next heatwave warning will be issued by 2:00pm WST on Thursday 18 December 2025
Forecast
Koolyanobbing (30.8163°S, 119.5176°E, 352m AMSL) set as my default location ›
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7 day forecast
Today: Sunny day. The chance of a thunderstorm in the NE in the late afternoon and evening. Winds SE 20 to 30 km/h. Overnight temperatures falling to between 13 and 18 with daytime temperatures reaching the low to mid 30s.
Forecast for Koolyanobbing (30.8163°S, 119.5176°E, 352m AMSL) Thu Fri Sat Sun Mon Tue Wed Summary 
Minimum 17° 17° 22° 11° 15° 16° 19° Maximum 33° 35° 31° 29° 31° 32° 33° Chance of rain 20% 70% 20% 5% 5% 5% 5% Likely amount < 1mm 1-5mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating High Moderate High 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 22
(km/h)17
(km/h)23
(km/h)12
(km/h)24
(km/h)26
(km/h)20
(km/h)15
(km/h)16
(km/h)14
(km/h)23
(km/h)16
(km/h)22
(km/h)18
(km/h)Wind direction SE SE E ENE SSW SSW SE SE ESE SSE ESE SE E ESE Relative humidity 49% 28% 46% 25% 45% 21% 41% 19% 37% 18% 37% 17% 38% 18% Dew point 11°C 12°C 12°C 13°C 13°C 7°C 5°C 3°C 8°C 5°C 8°C 4°C 9°C 6°C -
Sunrise and sunset times
Sunrise / Sunset for Koolyanobbing (30.8163°S, 119.5176°E, 352m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter 4:27am WST 4:54am WST 7:03pm WST 7:31pm WST 3:03am WST 5:45pm WST 
Waning crescent
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
