this post was submitted on 27 Jan 2026
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Australia’s southern states are scorching in extreme heat that could break temperature records in Victoria and South Australia on Tuesday.

At Ouyen and Mildura in north-west Victoria, temperatures of 49C were forecast for Tuesday afternoon. If reached, they would break the state’s all-time temperature record of 48.8C, set in Hopetoun on Black Saturday in 2009. By 1pm, temperatures of 46.2C in Ouyen and 44.8C in Mildura had been recorded.

At Ouyen and Mildura in north-west Victoria, temperatures of 49C were forecast for Tuesday afternoon. If reached, they would break the state’s all-time temperature record of 48.8C, set in Hopetoun on Black Saturday in 2009. By 1pm, temperatures of 46.2C in Ouyen and 44.8C in Mildura had been recorded.

In Adelaide, the mercury hit 40C before 9.30am on Tuesday, after overnight lows of 35C, BoM observations showed.

Extreme heat is the most common cause of weather-related hospitalisations in Australia, and kills more people than all other natural hazards combined. What does exposure to extreme heat – such as a temperature of 49C – do to the body?

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[–] rayyy@lemmy.world 10 points 1 day ago (1 children)

49 Celsius = 120.2 Fahrenheit, for the oldies out there.

[–] anon_8675309@lemmy.world 2 points 1 day ago (1 children)

I came here to ask what that was in ‘Merican.

[–] Soggy@lemmy.world 4 points 1 day ago

Halfway between freezing and boiling, the specifics hardly matter at that point.

[–] Nihilore@lemmy.world 6 points 1 day ago

"Australians are finding out" yeah, we've BEEN finding out for as long as i can remember lmao. the hottest we've logged the factory i work in was 56 degrees (that was when outside was ~48)

[–] lechekaflan@lemmy.world 7 points 1 day ago

Why I feel that business hours during summer season have to be extended at least a couple hours before closing because it is debilitating to even try do anything even under the shade at over 40C. Also, much exercise I have to do during such a season needed to be conducted at night.

[–] Horsey@lemmy.world 5 points 1 day ago* (last edited 1 day ago) (1 children)

Tucson here: June is routinely >40° every day here, but humidity is generally <30%. >60% humidity at that temperature kills if you’re not prepared.

[–] pupbiru@aussie.zone 1 points 1 day ago

thankfully our southern states aren’t particularly humid: equator to our north, antarctic to our south

[–] nutsack@lemmy.dbzer0.com 33 points 2 days ago (8 children)

it kind of sucks living in a part of the world that requires you to sit in air conditioned bubbles all day. it's a fucking depressing way to live.

[–] bitwolf@sh.itjust.works 11 points 1 day ago (2 children)

That is exactly how I felt about Texas.

And I was shocked no one thought to build or market reasonable 3rd spaces.

I always imagined thats why there were so many drunk people out and about. Because the only habitable place outside of homes were bars if you didn't have a gym membership.

[–] nutsack@lemmy.dbzer0.com 6 points 1 day ago* (last edited 1 day ago)

yes. everyone is inside because it's hot, and everyone is getting drunk because that's the only thing there is to do, and everyone is driving a car because that's the only way to get there. if you didn't drive, then you're waiting around for the person who drove you, and you're getting really drunk because they don't want to leave yet. what a stupid ironic life

[–] UnderpantsWeevil@lemmy.world 5 points 1 day ago* (last edited 1 day ago)

Plenty of 3rd spaces exist in Texas. You just have to pay to play. The hyper-capitalist dream is alive in the Lone Star State.

I always imagined thats why there were so many drunk people out and about. Because the only habitable place outside of homes were bars if you didn’t have a gym membership.

I gotta wonder how much of the decline of alcoholism in the subsequent generations boils down to affordability.

Gym memberships are way cheaper than bar tabs.

[–] bobzer@lemmy.zip 11 points 2 days ago (1 children)

And people forget wildlife don't have AC.

We'll be living in a dead world soon.

[–] Tollana1234567@lemmy.today 5 points 2 days ago

most of them avoid those areas, marsupials also have lower body temp than placentals.

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[–] MelodiousFunk@slrpnk.net 72 points 3 days ago (9 children)

In Adelaide, the mercury hit 40C before 9.30am on Tuesday, after overnight lows of 35C

There are not enough swear words in my vocabulary to successfully articulate my reaction to that.

[–] damo_omad@lemmy.world 6 points 2 days ago

Min of 35 is absolutely fucked

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[–] stoy@lemmy.zip 73 points 3 days ago (46 children)

Once temps hit more than 37C and 100% humidity, the human body loses the ability to regulate it's temperature through sweating.

[–] jaschen306@sh.itjust.works 3 points 1 day ago

This temperature happens a lot in Taiwan and is also 100% humidity. It's not comfortable.

[–] dgriffith@aussie.zone 70 points 3 days ago* (last edited 3 days ago) (5 children)

I've worked in mines in the desert in South Australia where temps semi regularly hit 46-47 degrees.

It's OK (ish) because the humidity is low. But you can drink a litre an hour all day (11+ hours) and not need to pee. All that water goes somewhere.

The underground workings are often more dangerous, with lower temperatures but higher humidity. Once wet bulb temps get above 34 degrees underground personnel need to retreat from the area and the only work that can be done there then is work to fix the ventilation.

There's heat stress meters that measure wet and dry bulb temperatures and airflow, and can basically compute cooling power in watts. Not enough cooling power -> everyone out.

[–] stoy@lemmy.zip 35 points 3 days ago

I can only imagine, as I sit on the Stockholm metro with cold and damp feet after walking through snow and some slush to get to the bus earlier.

I am happy to hear that you have rules and regulations for these eventualities.

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[–] SirActionSack@aussie.zone 7 points 2 days ago

South Australia doesn't have humidity.

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[–] LibertyLizard@slrpnk.net 46 points 3 days ago (8 children)

That's pretty damn hot. Around 120 F for those imperialists among us.

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[–] Paranoidfactoid@lemmy.world 32 points 3 days ago (7 children)

I lived in Perth for several years and I've seen 45 degree heat there. It's a desert, so it's dry heat. But that's hot. Real hot. 49-50 is just insane.

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[–] HeyThisIsntTheYMCA@lemmy.world 10 points 2 days ago (2 children)

is that 49 wet bulb or 49 normal?

[–] Teppichbrand@feddit.org 13 points 2 days ago

I guess not as wet bulb 35 already kills humans

[–] FiskFisk33@startrek.website 7 points 2 days ago (9 children)

The highest wet-bulb temperature ever recorded was 36.3C according to wikipedia. So very likely not that.

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[–] Honytawk@feddit.nl 16 points 2 days ago (1 children)

Damn, everything above body heat (37°C) is bad for your body.

[–] vrighter@discuss.tchncs.de 5 points 2 days ago (1 children)

at body heat is also bad for your body. There is no temperature difference so heat doesn't go into/out of your body.

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