Just play it by trichomes, light and heat can accelerate the ambering of trichomes, sometimes this means buds higher can often be ready a little sooner than lower, but it's not a fixed given. Depends on couple things. Just gpcis on your trichs and when they look ready, your main thing will be making sure there is no moisture in the critical final stage, if temps go above 77F the proliferation of bacteria is x10, very important you don't mix high temps with high moisture when buds are formed. Heat is a issue ofc but make especially sure its not too wet and hot.