My bike is exposed to the sun on the balcony where I keep it. This is probably not so great for the leather saddle, so I improvised a sun cover from some wire and folio. This highly advanced design doesn't trap heat underneath.
I love it. Privileged to have a brick outbuilding where I can keep my bikes super fresh. This is a great solution and will stop those rivets burning your ass
But why stop there!? You could improve the thermal properties by covering it with reflective folio and adding holes for ventilation! Or you could skip the holes and have pretty good water resistance as well.
The reason I suggested is because my parents had an old Monte Carlo with leather seats that would get deadly hot during the summer and we would lay towels across them when not driving to prevent burns when wearing shorts.
Genuine question: What benefits does a leather saddle offer? Did you specifically choose it over an alternative material? I have a city bike for commuting and i’ve never really thought about my saddle material before, only that I wanted a seat that was comfortable for my relaxed riding style.
It's supposed to mold to your butt's shape, while still being a hard surface (which tends to avoid soft tissue bruises). I think it's only relevant for bikes you ride for days. My city bike has this ancient plastic saddle with springs, and it does the job just fine.