Thanks for the info.
This mountains are not that high, about 2,000 to 4000 ft elevation, but tight , high G turns and hot.

Actually last week when I lost coolant , I didnt like how the gauge behaved.

I was climbing the twisities, when I get the warning to check coolant level,(another story of a clamp and bad hose) I saw the temperature and was at the middle, continued driving and the needle rised from center to almost red like in 10 seconds.

I would have assumed the gauge reading will increase gradually,but it took too much heat for the needle to move from center, like if its on purpose from the factory stuck in that position unless something dramatic happens, and now that happens one time, from now on its more easy for the needle to move.

Now page 86 of the Cayman S owner manual says.

Pointer in the middle-normal operating temperature.
The pointer might move up to the red area when engine is heavily loaded and outside temperature is high, but should return to "normal" when engine load is reduced.

According to the manual seems ok a rise in temp if the engine is heavily loaded, as long as it goes down.
Also talked to a couple of reputable mechanics and both told me its ok to keep driving hard as long as the temp needle doesnt reach the red area.