Hi Anthony, thanks for your help with this!
I've tried the Language change and restarts, but no luck unfortunately.
Oddly, my version of the connected app on my phone didn't have Temperature Units as an option, even though I'm on version 3.4.0. the only options were for "Units of measure" (metric or imperial) and "Running Rythym" (Pace or Speed), but no temperature option.
I manually updated the Tag Heuer Connected app on my watch (E3), and now the Temperature Units option has appeared on my phone, and setting it to Celsius has fixed the problem! Thank you again!
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