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.
vk6flab@lemmy.radio 4 hours ago
Temperature is measured like this:
www.abc.net.au/news/2026-01-28/…/106277628
dr_scientist@lemmy.world 4 hours ago
If that’s true, why is it different across so many platforms? France Météo is 29°, BBC Weather is 30°?
vk6flab@lemmy.radio 4 hours ago
Because they’re likely not all using the same data. Some will be time delayed, from a different weather station, averaged over a different period, any number of variations.
dr_scientist@lemmy.world 4 hours ago
So measured at a specific location, under very precise conditions, but also time delayed, from a different weather station, averaged over a different period with any number of variations.
This app is very popular with people, it’s where a lot of Apple users get their information. I guess it doesn’t bother you people giving out information that is this wrong.
It bothers me.
Onomatopoeia@lemmy.cafe 4 hours ago
I mean the fact that different sources show different results is your answer.
ohulancutash@feddit.uk 4 hours ago
Because they have different computing models, using different data, collected at different times.
InternationalHermit@lemmy.today 4 hours ago
That’s a negligible difference. Also the sources might use different prediction models. The temperature on the apps is the predicted, not the actual temperature. Go to your local airport website for actual temperature readings (at that location).