I think you'll find that any device with a lithium ion battery will have similar temperature ratings if the manufacturer is being honest. Everything else in the machine is fine with much hotter temperatures, but cooking the battery is a bad idea.

The battery heat issue is especially problematic with LiPo cells, since they tend to swell up and break open the surrounding device enclosure.

35ºC == 95ºF - I'm at the upper end of that range sometimes, but not exceeding it.

I typically work from a hammock, in the shade, until it gets to 90-95ºF. The throttling happens even when the temperature is in the range of 80-85ºF and CPU load make it much worse. It's not uncommon for me to have to seek air conditioning if I'm running a large test suite or rebuilding docker containers, else my machine throttles to the point that I can't even use Safari.

I've never had this problem with any other laptop I've owned, including previous generations of MacBooks and MacBook Pros.

> like 35c

> you cannot use your laptop unless you're indoors in air conditioned comfort

Maybe it's just me being used to colder climate, but I feel that laptop's thermal throttling is going to be a relatively small issue if trying to work in sunlight when air temperature is +35C out there.

I'd really seek some shade even when it's merely +25C...

Not necessarily in the sun in that temperature, but just say indoors where there is no air conditioning. It's not bright sunlight but it can easily get to +35c. You yourself can cool down with a fan and a cold drink but the laptop is sitting around in hot temperatures in the shade.