Traveling by car between Sakon Nakhon and Khon Kaen, I saw lush green rice fields everywhere. But maybe visible wet soil (i.e. field not flooded) alone is an indication for lack of water? But then on the flight to Bangkok, more grey/brown fields visible from plane.
No complaints about heat from me at all, when sky is covered by clouds it's fine for me (sure I would prefer 5 degress less, but the temperature is in my comfortable range, I don't think about it).