My favourite is probably warm but not crazy hot, slight breeze and just cloudy enough so that the sun isn’t burning you to a crisp. Makes for a nice time to relax or work outside. Also means that the horses are happy and don’t need to drink tons of water.
Horses are a pass time for me so they are more free time partners. I may get around to riding again in the future. Though right now I am still very busy sorting out a lot of horse related things since I got them home this year so I didn’t really get to do too much else yet.