Plenty of sunlight in the Mediterranean basin, most of Asia not including Siberia (not sure about Kazakhstan, Mongolia etc), the middle of the USA and due South

Plenty of sunlight in the Mediterranean basin, most of Asia not including Siberia (not sure about Kazakhstan, Mongolia etc), the middle of the USA and due South from there almost all the way to Southern South-America. Heavy rain would indeed wipe out all your work, which is why you would do it in the drier seasons.