I do whatever needs doing very early in the morning.
Everything is being water this year with timers; I'm not always able to be there when they need watering, between a very close friend who had a heart attack over a month ago and elderly parents who have no business doing many things around their house. I don't begrudge the use of water especially since we're not facing droughts/water restrictions like several years ago, but I am hoping to be able to convert my rain barrels to watering everything by next year (I'll need a pump for the pressure and am still looking at running it with solar panels - no battery since I don't water at night).
Heat/humidity certainly helps things grow in the garden but watering is more frequent. Adding tubing has been a Godsend this year with loved ones needing more help this year.
I still hand water cactus and other potted plants as well as Orchids but since they sit on the shaded front porch (not the cactus - they sit on the walls of the raised beds) or don't need watering as often, they are part of the "early morning" routine most of the time along with filling the birdbath and hummingbird feeders as needed. Since we redid all our raised gardens this year and adding a lot of mulch, weeds have been minimal and easy to pull; I know that will not be the case next year since seeds will have all winter to get blown in and established, but spring being cooler, weeding will be able to be done in tolerable weather.
