Fahrenheit to Centigrade

Press on the screen - gives you the option to change the units.

EDIT: Wait, no that's wrong. It uses the units in the Weather app on your phone.

 

Try changing in Weather app on iPhone?

 

In Settings/General/Language & Region on iPhone, what is temperature unit, °C or °F?

 

Unpair & re-pair seems like to be your best option.

 

Embrace the Fahrenheit! >80 is hot, >95 is stay inside hot, ~74 is perfect, <64 requires a hoodie, <50 requires a heavy jacket, <32 is freezing,<0 is stay inside cold.

 

Open the watch app on your phone, General, Language and Region, if United Kingdom is already selected select US, you will see a pop up asking for English US or UK. Select UK. It will change to C. Then a select UK and answer the pop up again.

Basically you might have UK region selected, but are using US English.

 

OP should be allowed to have the units they want, but, yeah, Fahrenheit is the one place where the metric system is inferior for day-to-day living - we've got: 50's are cold, 60's are cool, 70's are pleasant, 80's are warm, 90's are hot, and above 100 or below 50, you really don't want to be wandering around without either A/C, or a jacket or heater, respectively.

 

Personally I’m a fan of Kelvin, can’t get any colder than 0 K.

 

Me too but you could go Rankine (the absolute Fahrenheit equivalent to Kelvin where 0 R = 0 K = -460 F)...

 

Yes, but how often do you come across 0 K temperatures in daily life, assuming you're not an astrophysicist? This explains the superiority of Fahrenheit pretty well, for day-to-day use:

Regardless, your first answer to OP is probably the most correct and insightful one.

 

It is just different numbers.

 

Or, you could learn to convert in your head. This is approximate, but close enough even if you round the calculations.

F -> C: Subtract 32, divide by 2, add 10%

100-32=68, 68/2=34, 34+10%=37

C->F: Multiply by 2, subtract 10%, add 32

37*2=74. 74-10%=67, 67+32=99

Close enough to let you know if it's hot or cold.

 

Or simply use Siri?

 

it makes only sense when you are doing your own scale of temperature using the scale you want and you can do it on any scale.

people using celsius scale are used to the same ideology:

-20C freezing
-10C cold
(-5C excelent temperature for a winter day, not too cold but not too warm either)
0C mild winter day (thaw, the temperature for making a snowman)
10C chill (light jacket)
20C warm (t-shirt weather)
(25C is an excellent warm summer day for most people - i think it is already too hot, but i like more winter than summer)
30C hot (dont go out, only if you love it)

no it is not. It only shows fahrenheit compaired with other scales. Try to use that scale to identify when water boils. 0C water freezes, 100C water boils. 0F water has frozen long time ago, and 100F is warmer than your hand... and your scale should be for water: 32F to 212F.

 

Or he could just switch from English US to English UK and be done with it.

 

It's actually the one imperial measure I have little sympathy for, and where metric shows the sort of easy visualisation that's usually the preserve of imperial.

We have the option for both too

 

Yes, I regularly concern myself with the temperature at which water boils rather than whether it is boiling.

 

sounds you dont go to a sauna often, if ever... 70C, 80C, 90C ... ? maybe you try some lousy steamroom instead of a real sauna?

 

So, to round up:
Fahrenheit: Best for deciding whether to pack swimming trunks or a fur coat.

Centigrade: Best for cooking, deciding whether your car engine is likely to blow up, of whether the road is likely to be icy, whether the snow is going to melt, and all that science malarky (including trivial conversion to Kelvin).

Using both: all fun and games until you stick your hand in a pan of water at 100º....