That shounds a wee bit warm. I had excellent germination outdoors a couple of years ago with pots in a sunny location that got up to the mid to upper 80s. At 115F the seeds might think the volcano is erupting and stay dormant until it's safe to peek out.

Thank you for your feedback. Were your pots covered to creat a greenhouse effect or open? I was really worried that I had burnt my seeds. But the seeds swelled up really fat and some have now split open exposing a cream colored embryo. On the other hand I am also experimenting with uncovered flats, the seed swelling seems to be much smaller and shell is dry. Started spraying them 3x a day, hoping for change. weather is mid to high 80's All experiements are now placed under a patio cover. Still have another 500 or so seeds to germinate..... Lol! May have bite off more than I can chew. But still want to make a go of it tho. Thanks again!!! Have you ever tried germinating Plumeria seeds in tupperware containers? If so, how did it work out? Were you able to plant them directly into soil? And how did they do in the long run?