On a hot day in stop start traffic for 30 mins plus will see around 92+.Seeing as this thread pops up anytime anyone votes I thought I'd add my 2p worth.
My oil is never hot if I drive the car easy. Ok, I don't thrash it much ( and I never have done with any car) but I think the highest I've noticed is 76. It's usually 71 or 72 when driving normally. In saying that, it's been cold since I got it so I've never seen it in traffic on a hot day.
Shocked you haven't seen higher than 76, has your car ever seen any boost lol? Those turbos must be in a coma.