—-> Keep the perfume near, but off your skin.
There are some simple, and sometimes aesthetically beautiful ways to do this.
One important point to emphasize is that the perfume, especially natural perfume doesn't "evolve" so much when you use these methods. Yes, the topnotes evaporate off first, but you may find they last longer then with conventional skin application of the perfume. The great news – the middle and base notes go on f.o.r.e.v.e.r. – without the heat of your skin volatilizing them, they last very, very long.
Disclaimer: during a summer heatwave, all promises of longevity are off. 100F temps plus high humidity will even wilt the flowers growing in your garden, so don't expect any perfume to survive, despite any efforts to prolong the scent.