Hot nights and Australian dogs: what the data says

Short answer: Australia's summers are getting hotter at night, not just during the day. The Bureau of Meteorology's September 2026 outlook says overnight temperatures are likely to be above average across almost all of the country, with the chance of unusually high minimums above 80% in some regions. Hot nights are when dogs — especially flat-faced breeds, older dogs and double-coated dogs — struggle most, and they are the reason a cool resting surface matters.

Dog resting on a PawFresco ice-silk cooling mat beside a bed on a warm night
A cool mat beside the bed on a warm night.

What the 2026–27 forecasts say

  • Overnight temperatures: "very likely (greater than 80% chance) to be above average" across almost all of Australia (Bureau of Meteorology long-range outlook, 24 September 2026).
  • El Niño conditions were at near-record levels in late 2026 (Niño 3.4 anomaly around +2.7 °C), which typically tilts the odds toward hotter, drier summers in eastern Australia.
  • Heatwave season runs October to March according to the Bureau's heatwave service — which is why the first hot spell of the season is the one most households are least ready for.

What last summer actually looked like

  • Australia recorded its 8th-warmest summer on record, with 62 weather stations setting new records.
  • Daytime peaks reached 50.0 °C (Andamooka and Port Augusta, South Australia).
  • Nights were the story: Paraburdoo (WA) recorded a minimum of 35.8 °C, and Adelaide had its hottest night on record at 34.1 °C.
  • Hospital data during January 2026 heatwaves showed heat-related emergency presentations rising "up to around 25%" overnight (Royal Melbourne Hospital, reported January 2026).

What the research says about dogs and heat

  • A 20-year study published in the Australian Veterinary Journal found that for every 1 °C above 25 °C, the risk of heat-related death in dogs rose by about 0.6% — and by around 9.5% on extreme heat days.
  • The same dataset recorded 119 heatstroke cases in New South Wales (1997–2017), 23% of them fatal.
  • Risk peaks around the holidays: deaths spike by roughly 155% on New Year's Day and Christmas Day, when routines change and dogs are exercised at the hottest times.
  • More than 5.2 million Australian households have a dog (49.3%), so this is a mainstream household problem, not a niche one (Animal Medicines Australia, 2025).

What actually helps on a hot night

Cat resting on a PawFresco ice-silk cooling mat by a window at dusk
Cats use them too — a spot by the window at dusk.
  1. Move the walk, don't skip the exercise: early morning or after sunset, and check the pavement with the back of your hand for five seconds.
  2. Water everywhere: multiple bowls, plus a paddling pool or wet towel for dogs that will use them.
  3. Let air move: a fan near the floor helps more than one pointed at the ceiling, and dogs will find the coolest hard surface in the house.
  4. Give them a cool resting surface: tiles stay cooler than carpet; a fabric cooling mat gives them a portable cool spot near the family instead of behind the couch.
  5. Watch the signs: heavy panting with a wide tongue, restlessness, drooling, or gums that look bright red are warnings. Breathing distress, wobbling or collapse is an emergency — call your vet immediately.

Where a cooling mat fits — and where it does not

A cooling mat is a comfort product. It gives your dog a cooler surface to lie on so they settle faster at night. It is not a medical device, it does not prevent heatstroke, and it is never a substitute for shade, water, air conditioning or veterinary care. If your dog is unwell in the heat, contact your vet.

Frequently asked questions

Do dogs sleep worse in hot weather?

Yes — overnight restlessness is one of the most common things Australian owners describe in hot spells, and the hospital data above shows humans are affected overnight too. When the minimum temperature stays high, the body has no cool window to recover, and dogs often pace, pant and change position instead of sleeping deeply.

At what temperature is it too hot to walk my dog?

There is no single safe number — breed, coat, age and fitness all matter — but risk rises from 25 °C and climbs with every degree. As a practical rule, if it is above 30 °C or the pavement is too hot for your hand, walk early or late, keep it short, and choose shade or grass over asphalt.

Do cooling mats prevent heatstroke?

No. Heatstroke is a medical emergency and no mat, vest or fan prevents it. Mats help with comfort and sleep; shade, water, timing and veterinary advice are what reduce risk.

Which dogs feel the heat most?

Flat-faced (brachycephalic) breeds such as pugs, French bulldogs and boxers; older dogs; overweight dogs; dogs with thick double coats; and dogs with heart or breathing conditions. If your dog is in one of these groups, cooling measures matter earlier in the season.

Sources: Bureau of Meteorology long-range outlook (24 September 2026) and heatwave service; Bureau of Meteorology summer 2025–26 summary; Australian Veterinary Journal heat-related mortality study (2025); Animal Medicines Australia, Pets in Australia 2025; RSPCA public heat-safety guidance. This page is general information, not veterinary advice. Last updated: 29 September 2026.