Google Assistant stuck on Fahrenheit despite your Celsius preference? Here's the potential odd reason why

If you’ve noticed Google Assistant stubbornly responding with temperatures in Fahrenheit even though you’ve set it to Celsius, you’re not alone. Users have taken to Reddit and Google support forums with complaints about their Nest Hubs, smart speakers, and other Google devices ignoring regional settings and preferences. It’s not just an isolated issue — it appears to be a baffling bug tied to how Google Assistant interprets your voice.

Some users claim the problem changes depending on how close they are to the device or even the pitch of their voice. One Reddit user discovered that speaking in a high-pitched tone consistently triggered temperature responses in Fahrenheit, while their normal voice kept results in Celsius. They joked about the absurdity, asking, “Who thought this was a good idea?”

Another commenter also backed up this claim noting, “Now that I checked my assistant history, it also seems to support this theory: each time I’ve complained about the wrong units being used, there’s nothing in the history immediately before that.” Even a user on Google’s support forums noted the same experience.

Others have reported that despite clearly setting their preferences in the Google Home app, the Assistant occasionally defaults back to Fahrenheit without warning. A common theme in these complaints is frustration with being “force-fed” a unit of measurement irrelevant to their country.

While Google has not officially acknowledged this bug, theories about a possible cause include glitches in Assistant’s voice matching or a mismatch between app and device settings. Standard advice like clearing cache, rebooting devices, and syncing settings has done little to solve the issue for most users.

Google is no stranger to this frustrating problem. A few weeks ago, there were reports of a bug causing the Pixel’s Weather app to keep defaulting to Fahrenheit. So it seems like Google needs to figure out that there’s a whole other world out there that doesn’t use Fahrenheit to measure temperature.

All that’s left to do is hope for Google to address the problem with an update. Meanwhile, the workaround seems to be speaking to your Assistant in a tone it likes.