Under normal conditions, (web browsing, emailing, etc), the CPU temperature is usually less than 50C for me. Under high load, it may jump to 80C. But the fans don't shoot up. The aluminum case is pretty good at keeping the MBP cool.
if you like you can install smcfancontrol and speed up the fans and that way your laptop is going to be cooler. I speed up my fan in my mbp 13'' to 3000rpm and is running at 120 F under normal usage. check this thread https://forums.macrumors.com/threads/759799/