Rainbow Noon Share definition Flag At Rainbow Gatherings, when the sun is high overhead. At Rainbow Noon is when Main Circle happens. On July 4th, all the Rainbow Gatherers hold hands in a huge circle & chant "Ohm". Rainbow Noon by Starchylde May 20, 2016 0 0 Get merch Get the Rainbow Noon mug. Buy Now — $32.95 See more merch