[distances]

Just a clarification as it may not be clear from your message. A Finnish ("dry") sauna always includes throwing water on the stove, which is called "löyly".

People have different preferences for the warmth of the sauna -- as low as 65°C for some elderly folks, all the way up to 120°C for more hardcore people -- but water is always thrown on the stove. You won't get burns, but it can have a real sting. It's enjoyable, but may feel uncomfortable as a new experience.

[euroderf]

When a swimhall has two saunas, a "hot" and a "hotter", I'd guess they are at about 70°C and 90°C.

[nextlevelwizard]

70-90 seems reasonable, 90 is already over my comfort which is around 80, but the post talked about >90 degrees which just seems stupidly hot

[euroderf]

I don't know anyone who wants sauna that hot - steam is involved. Numbers over 90 sound like dry heat only. My 0,02€.