Australian Government Bureau of Meteorology
Northern Territory
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:44 PM CST on Wednesday 10 December 2025
Valid for Wednesday 10 December 2025 to Saturday 13 December 2025
Warning for the following areas:
Arnhem, Simpson and Lasseter
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 low to mid forties and overnight minimum temperatures in the mid twenties are expected for the remainder of the week, continuing into the weekend over the eastern Top End.
Severe heatwave conditions across southern parts of NT will over the weekend as a milder change moves through. Severe heatwave conditions are developing over northeastern NT and are expected to peak over the weekend and into early next week. Locations likely to be impacted include Bulman, Kulgera, Kaltukatjara and Yulara.
The next heatwave warning will be issued by 3:00pm CST on Thursday 11 December 2025
Forecast
Groote Eylandt (13.9761°S, 136.4616°E, 14m AMSL) set as my default location ›
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7 day forecast
Today: Partly cloudy. Slight chance of a shower NW of Kakadu Highway, near zero chance elsewhere. The chance of a thunderstorm in the late afternoon and evening. Winds E 15 to 20 km/h turning N in the late afternoon.
Forecast for Groote Eylandt (13.9761°S, 136.4616°E, 14m AMSL) Thu Fri Sat Sun Mon Tue Wed Summary 
Minimum 25° 26° 26° 27° 27° 28° 28° Maximum 33° 34° 33° 34° 34° 33° 32° Chance of rain 40% 50% 60% 40% 60% 70% 80% Likely amount < 1mm < 1mm 1-5mm < 1mm 1-5mm 5-10mm 5-10mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating No Rating No Rating No Rating No Rating - - - 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)12
(km/h)8
(km/h)11
(km/h)9
(km/h)12
(km/h)9
(km/h)12
(km/h)10
(km/h)9
(km/h)12
(km/h)7
(km/h)10
(km/h)14
(km/h)Wind direction NE ENE NE ENE N NE N NE NW E NW ESE WNW SE Relative humidity 62% 51% 62% 50% 63% 50% 65% 47% 64% 50% 65% 53% 65% 63% Dew point 23°C 22°C 23°C 22°C 24°C 22°C 24°C 21°C 24°C 22°C 24°C 23°C 24°C 24°C -
Sunrise and sunset times
Sunrise / Sunset for Groote Eylandt (13.9761°S, 136.4616°E, 14m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter 5:26am CST 5:49am CST 6:45pm CST 7:09pm CST 11:43am CST 
Waning gibbous
Last quarter Dec 12 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
