Australian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:43 PM WST on Saturday 20 December 2025
Valid for Saturday 20 December 2025 to Tuesday 23 December 2025
Warning for the following areas:
Pilbara and 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 high thirties to mid forties and overnight minimum temperatures in the low to high twenties through the Pilbara and northwest parts of the Gascoyne district.
Severe heatwave conditions are likely to persist through until mid next week, reaching a peak over the weekend and the early part of next week. Locations likely to be impacted include Exmouth and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Sunday 21 December 2025
Forecast
Gascoyne River (25.3411°S, 116.2586°E, 315m AMSL) set as my default location ›
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7 day forecast
Today: Mostly sunny. The chance of a thunderstorm in the far NE during this afternoon and early evening. Winds SE 25 to 40 km/h. Daytime maximum temperatures 32 to 43.
Forecast for Gascoyne River (25.3411°S, 116.2586°E, 315m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary 
Minimum 26° 27° 29° 30° 28° 27° 25° Maximum 41° 42° 41° 42° 41° 42° 40° Chance of rain 5% 30% 60% 10% 30% 5% 5% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 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 29
(km/h)18
(km/h)29
(km/h)15
(km/h)29
(km/h)22
(km/h)26
(km/h)12
(km/h)17
(km/h)12
(km/h)13
(km/h)22
(km/h)18
(km/h)21
(km/h)Wind direction ESE S ESE SE E ENE ENE ENE ENE WNW SW WSW SSW SW Relative humidity 17% 10% 14% 12% 20% 14% 15% 11% 22% 14% 35% 15% 40% 15% Dew point 5°C 4°C 4°C 8°C 9°C 9°C 6°C 6°C 11°C 9°C 16°C 11°C 14°C 9°C -
Sunrise and sunset times
Sunrise / Sunset for Gascoyne River (25.3411°S, 116.2586°E, 315m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase First quarter Full moon Last quarter New moon 5:00am WST 5:26am WST 7:08pm WST 7:34pm WST 6:04am WST 8:23pm WST 
Waxing crescent
First quarter Dec 28 Full moon Jan 03 Last quarter Jan 11 New moon Jan 19 -
Warnings
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Temperature for next 7 days
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Rain for next 7 days
