Australian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:10 PM WST on Saturday 13 December 2025
Valid for Saturday 13 December 2025 to Tuesday 16 December 2025
Warning for the following areas:
Lower West, South West, South Coastal, South East Coastal and Great Southern
Cancellation for the following areas:
Gascoyne
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 in the mid thirties to low forties and overnight minimum temperatures in the mid teens to mid twenties.
Severe heatwave conditions are expected to intensify over the weekend and persist over southern WA into next week.
Severe heatwave conditions have eased over the Gascoyne, however low intensity heatwave conditions may linger over the next few days. Locations likely to be impacted include the Perth Metropolitan Area, Gingin, Hopetoun, Katanning, Lake Grace, Mount Barker, Narrogin, Ravensthorpe and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Sunday 14 December 2025
Forecast
Lyndon (23.6316°S, 115.2406°E, 213m AMSL) set as my default location ›
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7 day forecast
Today: Partly cloudy. Slight chance of a shower in the E in the afternoon and evening. Near zero chance of rain elsewhere. The chance of a thunderstorm in the afternoon and evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the SW. Winds NE 25 to 35 km/h tending NE/SE 15 to 25 km/h in the early afternoon. Daytime maximum temperatures around 40.
Forecast for Lyndon (23.6316°S, 115.2406°E, 213m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary 
Minimum 22° 23° 25° 25° 26° 29° 30° Maximum 41° 41° 41° 42° 42° 43° 43° Chance of rain 5% 10% 10% 40% 50% 70% 40% Likely amount < 1mm < 1mm < 1mm 1-5mm < 1mm 1-5mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating High High 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 7
(km/h)16
(km/h)8
(km/h)10
(km/h)12
(km/h)16
(km/h)13
(km/h)16
(km/h)11
(km/h)11
(km/h)12
(km/h)14
(km/h)22
(km/h)24
(km/h)Wind direction N WNW SSW WNW WSW W SSW SSW SE N SE W SSW SSW Relative humidity 45% 13% 36% 17% 41% 19% 35% 19% 34% 20% 35% 17% 33% 17% Dew point 17°C 8°C 16°C 12°C 17°C 13°C 15°C 14°C 16°C 15°C 18°C 13°C 16°C 13°C -
Sunrise and sunset times
Sunrise / Sunset for Lyndon (23.6316°S, 115.2406°E, 213m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter 5:03am WST 5:28am WST 7:00pm WST 7:26pm WST 1:21am WST 2:11pm 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
