I got home yesterday afternoon to see two horses in the field next to the house wearing blankets! It was 15˚C… Why on earth anyone should put a blanket on a horse when it is that warm is beyond me. Even Full-blood Arab horses are quite capable of withstanding temperatures well below freezing (it gets pretty cold in the desert at night!) and all horses are equipped with very effective systems for keeping the body warm and for insuring that water (and sweat) is channelled off the body and, if in large quantities, transported to the ground.