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Feels like OP thinks that iPhone has an built-in thermometer. It has not. AFAIK, no phone has that. All weather data is taken from internet.
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Submitted 3 weeks ago by dr_scientist@lemmy.world to mildlyinfuriating@lemmy.world
Comments
mimavox@piefed.social 3 weeks ago
dr_scientist@lemmy.world 3 weeks ago
A Kestral 2000 is a live thermometer. Doesn’t it seem weird that Apple is off by this much.
mimavox@piefed.social 3 weeks ago
Did you read what I wrote? The phone doesn’t have a thermometer. Yes, it’s strange that it’s off, but I don’t know where Apple gets its weather data from.
over_clox@lemmy.world 3 weeks ago
My last phone from 2018 had like 48 sensors on it, including thermometer, so yeah that indeed is a thing. But obviously OP’s photo is showing Apple pulling numbers
out of thin airfrom whatever weather station, not from any internal sensors.
remon@ani.social 3 weeks ago
I doubt that Apple is running your local weather station.
dr_scientist@lemmy.world 3 weeks ago
France Météo is reporting 29°. I guess I should have said that.
tal@lemmy.today 3 weeks ago
So, I don’t know how European weather reporting works, but if it’s like the US, the temperature that they’re reporting for your area may be for wherever your local weather station is (probably your local airport?), which may well differ from that at your house or wherever you’re taking the picture.
dr_scientist@lemmy.world 3 weeks ago
I’m fairly sure they try to model weather as the France Météo service reported 29°, and it changed by 5° as I got closer to the coast.
Onomatopoeia@lemmy.cafe 3 weeks ago
and it changed by 5° as I got closer to the coast.
🤦
tal@lemmy.today 3 weeks ago
So, I don’t use iOS devices, and I’m not in Europe, so I can’t provide a lot of first-hand data on your particular widget. I’m just saying that that’s how the weather software I’ve used in the past across a number of platforms works.
Regarding your change as you traveled towards the coast, if they’re choosing the closest weather station to your location, though, you’d expect the weather station in question to shift as you travel.
If they are reporting temperature at a weather station and if this database here represents the weather station set that is used (again, I don’t know, not familiar with weather reporting in Europe):
eea.europa.eu/…/locations-of-stations-with-temper…
Then it looks like France is operating far fewer weather stations than some other countries in Europe, which might tend to cause more average deviation between a given location of someone checking the weather and the conditions at the local weather station being used.
Wrongdoer2@sh.itjust.works 3 weeks ago
That’s not how you’re supposed to measure temperature
Onomatopoeia@lemmy.cafe 3 weeks ago
Just look at all that hard surface around you, a giant heat sink.
And you wonder why the temp there is higher?
TheReturnOfPEB@reddthat.com 3 weeks ago
are you in the shade ?
outside temp is reported from temps taken in the shade
Onomatopoeia@lemmy.cafe 3 weeks ago
OP is standing in the middle of a bunch of hard surfaces - you know, the kind of thing that soaks up heat and releases it slowly over time.
I mean so much logic fail with OP.
dr_scientist@lemmy.world 3 weeks ago
The Kestral 2000 measures air temperature. I measured it in both, but took the photo in the sun.
dr_scientist@lemmy.world 3 weeks ago
I’m genuinely surprised by the negative reaction to this post, so I’m going to try to explain why I made it.
I’m aware of microclimates, and changes in local temperature, and shade and sun and so on. I took the temperature in the shade just now, away from structures, in the garden, and it was 33°. I should have done that initially, but this was not meant to be about my being crazy. This was meant to be about the future of how we can expect temperatures to be measured and then delivered to the public.
Recently, we have had a heatwave in the EU, the 'heat dome’. You probably heard that before. Once rare, now rather common, it inverts the traditional climate where the coast is temperate and the inland is warmer.
If we are using models that ignore these new conditions, there is a risk of under-reporting actual temperatures and not taking the very serious climate emergency more seriously. The use of AI, and its documented nature of trying to please the user, concerns me in the face of gathering data for any government body trying to accurately document what is happening.
I’m sorry if I seemed crazy. I’m just concerned.
Archer@lemmy.world 3 weeks ago
OP not understanding how temperature measurements work is mildly infuriating so this is, ironically, a good post
imeansurewhynot@sh.itjust.works 3 weeks ago
I was literally wondering if Google was doing this yesterday because all week it felt way hotter than tge temp it was suggesting; i wish i had had a thermometer available to compare.
i might pick one up or even just compare different sources.
vk6flab@lemmy.radio 3 weeks ago
Have you considered that the temperature displayed by the phone comes from the internet, rather than an onboard thermometer?
dr_scientist@lemmy.world 3 weeks ago
Yes, but undereporting by 10° is a lot.
vk6flab@lemmy.radio 3 weeks ago
Temperature is measured like this:
www.abc.net.au/news/2026-01-28/…/106277628
ryathal@sh.itjust.works 3 weeks ago
It really depends on what you are comparing against. A temperature taken in direct sunlight at human height in a paved parking lot is going to be well over 10 degrees different than a grassy area shaded by a building. Even if they are adjacent areas. Proximity to a large body of water can easily change the temperature by 5-10 degrees.
A weather app is going to present a temperature that trys to average all of that for a fairly wide area.
LodeMike@lemmy.today 3 weeks ago
Do you think the app is programmed to -=10? It’s likely an error on the part of the service.
starlinguk@lemmy.world 3 weeks ago
Apple “overreports” on mine. Because they get their temperature from the business park down the hill. It’s cooler where I am.