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
Gascoyne Junction (25.0496°S, 115.2093°E, 136m 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 Gascoyne Junction (25.0496°S, 115.2093°E, 136m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary 
Minimum 24° 24° 26° 25° 27° 29° 27° Maximum 42° 41° 41° 41° 42° 42° 41° Chance of rain 30% 30% 30% 40% 40% 50% 5% Likely amount < 1mm 1-5mm < 1mm < 1mm 1-5mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating High High High Moderate - - - 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 13
(km/h)18
(km/h)8
(km/h)7
(km/h)13
(km/h)18
(km/h)16
(km/h)19
(km/h)17
(km/h)11
(km/h)9
(km/h)12
(km/h)20
(km/h)24
(km/h)Wind direction NNE WNW SE SW W WSW SSW SW SSE SSW S WSW SSW SSW Relative humidity 35% 13% 37% 17% 41% 20% 37% 18% 33% 20% 35% 21% 37% 18% Dew point 16°C 9°C 16°C 12°C 18°C 14°C 15°C 13°C 16°C 15°C 17°C 16°C 15°C 12°C -
Sunrise and sunset times
Sunrise / Sunset for Gascoyne Junction (25.0496°S, 115.2093°E, 136m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter 4:57am WST 5:23am WST 7:04pm WST 7:30pm WST 1:19am WST 2:12pm 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
