Australian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026
Forecast
Onslow (21.6363°S, 115.1124°E, 3m AMSL) Onslow,WA set as my default location ›
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Seven day forecast
Onslow 7 day forecast
Today: Mostly sunny. Slight chance of a shower in the NE, near zero chance elsewhere. The chance of a thunderstorm, possibly severe with damaging winds in the NE in the afternoon and evening. Winds NW/SW 15 to 25 km/h tending NE/SE 20 to 30 km/h in the early morning then tending NW/NE 25 to 35 km/h in the middle of the day. Overnight temperatures falling to the mid to high 20s with daytime temperatures reaching 41 to 47.
Forecast for Onslow (21.6363°S, 115.1124°E, 3m AMSL) Thu Fri Sat Sun Mon Tue Wed Summary
Minimum 26° 26° 24° 22° 22° 23° 24° Maximum 35° 33° 34° 35° 38° 39° 37° Chance of rain 5% 5% 5% 5% 5% 5% 5% Likely amount < 1mm < 1mm < 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 14
(km/h)31
(km/h)19
(km/h)29
(km/h)16
(km/h)35
(km/h)28
(km/h)39
(km/h)34
(km/h)34
(km/h)31
(km/h)35
(km/h)22
(km/h)37
(km/h)Wind direction NNE NNW WNW NW WSW WNW SW W SW WSW SSW W SW WNW Relative humidity 66% 66% 72% 63% 53% 51% 55% 41% 56% 36% 46% 36% 50% 52% Dew point 25°C 26°C 25°C 24°C 20°C 21°C 18°C 19°C 19°C 20°C 17°C 20°C 20°C 24°C First light 5:30am 5:31am 5:32am 5:32am 5:33am 5:34am 5:34am Sunrise 5:54am 5:55am 5:56am 5:56am 5:57am 5:58am 5:58am Sunset 7:08pm 7:08pm 7:07pm 7:07pm 7:07pm 7:07pm 7:06pm Last light 7:32pm 7:32pm 7:31pm 7:31pm 7:31pm 7:31pm 7:30pm -
Warnings
Weather Warnings
Wed 1:58pm UTC Severe weather advice WAWed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026Wed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026Wed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026Wed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026Wed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026Wed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026Wed 1:58pm UTC Severe weather advice WAAustralian Government Bureau of Meteorology
Western Australia
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 01:58 PM WST on Wednesday 21 January 2026
Valid for Wednesday 21 January 2026 to Thursday 22 January 2026
Warning for the following areas:
Pilbara, Gascoyne and Central West
Cancellation for the following areas:
North Interior, Kimberley and Lower West
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 generally in the low to mid forties, reaching the high forties through parts of the Gascoyne and Pilbara. Overnight minimum temperatures in the low to mid twenties in the Central West and in the mid to high twenties through the Gascoyne and Pilbara.
While severe heatwave conditions have eased across the Lower West, including parts of Perth, hot temperatures and low intensity heatwave conditions will persist until Thursday, with cooler conditions becoming established by Thursday evening.
Severe to extreme heatwave conditions are expected to ease and contract to the South Interior over the coming days as milder temperatures extend across the southern half of WA from Friday.
Locations likely to be impacted include Carnarvon, Denham, Geraldton, Kalbarri and Paraburdoo.
The next heatwave warning will be issued by 2:00pm WST on Thursday 22 January 2026For extended forecasts and greater detail visit weather zone° -
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 5:30am WST 5:54am WST 7:08pm WST 7:32pm WST 8:47am WST 9:29pm WST
Waxing crescent
First quarter Jan 26 Full moon Feb 02 Last quarter Feb 09 New moon Feb 17 Onslow sun & moon times
ThursdayFirst light5:30am
WSTSunrise5:54am
WSTSunset7:08pm
WSTLast light7:32pm
WSTMoon phase
Next OccurrenceMoon riseThu
8:47am
WSTMoon setThu
9:29pm
WSTFirst quarterFirst quarter Mon
Jan 26
Full moonFull moon Mon
Feb 02
Last quarterLast quarter Mon
Feb 09
New moonNew moon Tue
Feb 17
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Temperature for next 5 days
0 Thursday Thursday 35 1 Friday Friday 33 2 Saturday Saturday 34 3 Sunday Sunday 35 4 Monday Monday 38 5 Tuesday Tuesday 39 6 Wednesday Wednesday 37 7 Wednesday Wednesday 37 -
Rain for next 5 days
0 Thursday Thursday 0 1 Friday Friday 0 2 Saturday Saturday 0 3 Sunday Sunday 0 4 Monday Monday 0 5 Tuesday Tuesday 0 6 Wednesday Wednesday 0 7 Wednesday Wednesday 0