Australian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025
Forecast
Onslow (21.6363°S, 115.1124°E, 3m AMSL) Onslow,WA set as my default location ›
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7 day forecast
Onslow 7 day forecast
Today: Partly cloudy. Slight chance of a shower, most likely in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Winds SE/SW 15 to 25 km/h tending NE/SE in the morning then tending NW/SW 15 to 20 km/h in the evening. Daytime maximum temperatures 38 to 43.
Forecast for Onslow (21.6363°S, 115.1124°E, 3m AMSL) Wed Thu Fri Sat Sun Mon Tue Summary 
Minimum 28° 27° 25° 24° 23° 24° 26° Maximum 37° 39° 42° 39° 39° 38° 38° Chance of rain 30% 10% 5% 5% 5% 10% 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 19
(km/h)32
(km/h)14
(km/h)33
(km/h)29
(km/h)34
(km/h)30
(km/h)36
(km/h)27
(km/h)37
(km/h)18
(km/h)33
(km/h)16
(km/h)29
(km/h)Wind direction E NW SSW WNW SSW WSW SSW WSW SW W SSW WNW SSE NNW Relative humidity 66% 57% 41% 51% 39% 28% 39% 30% 42% 40% 43% 50% 39% 52% Dew point 27°C 24°C 20°C 23°C 17°C 18°C 16°C 17°C 17°C 21°C 18°C 23°C 18°C 22°C First light 5:10am 5:11am 5:11am 5:12am 5:12am 5:13am 5:14am Sunrise 5:35am 5:36am 5:36am 5:37am 5:37am 5:38am 5:39am Sunset 7:03pm 7:03pm 7:04pm 7:04pm 7:04pm 7:05pm 7:05pm Last light 7:28pm 7:28pm 7:28pm 7:29pm 7:29pm 7:30pm 7:30pm -
Sunrise and sunset times
Sunrise / Sunset for Onslow (21.6363°S, 115.1124°E, 3m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase First quarter Full moon Last quarter New moon 5:10am WST 5:35am WST 7:03pm WST 7:28pm WST 9:02am WST 10:18pm WST 
Waxing crescent
First quarter Dec 28 Full moon Jan 03 Last quarter Jan 11 New moon Jan 19 Onslow sun & moon times
WednesdayFirst light5:10am
WSTSunrise5:35am
WSTSunset7:03pm
WSTLast light7:28pm
WSTMoon phase
Next OccurrenceMoon riseWed
9:02am
WSTMoon setWed
10:18pm
WSTFirst quarterFirst quarter Sun
Dec 28
Full moonFull moon Sat
Jan 03
Last quarterLast quarter Sun
Jan 11
New moonNew moon Mon
Jan 19
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Warnings
Weather Warnings
Tue 12:44pm UTC Severe weather advice WATue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025Tue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025Tue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025Tue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025Tue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025Tue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025Tue 12:44pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 12:44 PM WST on Tuesday 23 December 2025
Valid for Tuesday 23 December 2025 to Thursday 25 December 2025
Warning for the following areas:
Gascoyne, Central West, Lower West and South West
Cancellation for the following areas:
Pilbara
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.
For the Gascoyne and Central West Districts expect maximum temperatures in the high thirties to mid forties and overnight minimum temperatures in the mid to high twenties.
For the Lower West and South West Districts expect maximum temperatures in the mid to high thirties and overnight minimum temperatures in the low to high teens rising to the low to mid twenties in northern parts of the Lower West.
Severe heatwave conditions are likely to persist over the next few days, reaching a peak through the middle to later part of the week and then easing over the weekend. Severe heatwave conditions have eased over the Pilbara District however Low Intensity heatwave conditions still persist. Locations likely to be impacted include Perth Metropolitan Area, Dwellingup, Geraldton, Gingin, Kalbarri and Yanchep.
The next heatwave warning will be issued by 2:00pm WST on Wednesday 24 December 2025For extended forecasts and greater detail visit weather zone° -
Temperature for next 7 days
0 Wednesday Wednesday 37 1 Thursday Thursday 39 2 Friday Friday 42 3 Saturday Saturday 39 4 Sunday Sunday 39 5 Monday Monday 38 6 Tuesday Tuesday 38 7 Tuesday Tuesday 38 -
Rain for next 7 days
0 Wednesday Wednesday 0 1 Thursday Thursday 0 2 Friday Friday 0 3 Saturday Saturday 0 4 Sunday Sunday 0 5 Monday Monday 0 6 Tuesday Tuesday 0 7 Tuesday Tuesday 0
