Australian Government Bureau of Meteorology
Northern Territory
TOP PRIORITY FOR IMMEDIATE BROADCAST
Heatwave Warning
Issued at 02:44 PM CST on Friday 12 December 2025
Valid for Friday 12 December 2025 to Monday 15 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 in the south. Over the eastern Top End, maximum temperatures in the high thirties to low forties and overnight minimum temperatures in the mid twenties in the south.
Severe heatwave conditions across southern parts of NT will ease over the weekend as a milder change moves through. Severe heatwave conditions are developing over northeastern NT and are expected to peak early next week. Locations likely to be impacted include Alice Springs, Bulman, Jervois and Yulara.
The next heatwave warning will be issued by 3:00pm CST on Saturday 13 December 2025
Forecast
Nyapari (25.9941°S, 128.3424°E, 564m AMSL) set as my default location ›
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Seven day forecast
Today: Partly cloudy. Slight chance of a shower in the N, near zero chance elsewhere. The chance of a thunderstorm, possibly severe with damaging winds during this afternoon and evening. Winds S/SE 20 to 30 km/h tending E/SE before dawn. Daytime maximum temperatures 32 to 37.
Forecast for Nyapari (25.9941°S, 128.3424°E, 564m AMSL) Sat Sun Mon Tue Wed Thu Fri Summary 
Minimum 24° 23° 23° 24° 23° 24° 25° Maximum 34° 37° 39° 39° 40° 41° 41° Chance of rain 20% 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 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 25
(km/h)28
(km/h)26
(km/h)24
(km/h)32
(km/h)21
(km/h)29
(km/h)15
(km/h)22
(km/h)16
(km/h)23
(km/h)19
(km/h)23
(km/h)15
(km/h)Wind direction SSE SSE E ESE E E ENE ESE ENE SSE ENE SE ENE ESE Relative humidity 28% 25% 25% 19% 14% 12% 16% 11% 11% 8% 10% 6% 22% 11% Dew point 10°C 11°C 10°C 9°C 2°C 4°C 4°C 2°C 0°C 0°C 0°C -4°C 11°C 5°C -
Warnings
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Sunrise and sunset times
Sunrise / Sunset for Nyapari (25.9941°S, 128.3424°E, 564m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter 4:05am WST 4:31am WST 6:11pm WST 6:37pm WST 1:03am CST 12:26pm WST 
Waning crescent
New moon Dec 20 First quarter Dec 28 -
Temperature for next 5 days
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Rain for next 5 days
