07/11/2026
If you feel hot, your horse feels even hotter.
Horses have a much harder time processing heat and humidity than humans. And among horses, foals usually cannot handle as much heat as adult horses. A mare may be fine, but her foal may be getting sick from being out on a hot day.
Horses with heavy muscling or excess fat or in poor condition will also be more susceptible to heat exhaustion. Keep in mind that exercise is a major source of body heat and strenuous work on a hot, humid day can lead to problems in a short period of time for even the best-conditioned horse.
Does this mean you should not ride on a hot and humid day? Not necessarily. It just means you should take precautions and use common sense. And remember: don't push it! If your horse looks tired, it’s time for a drink, a cold bath, and a break in the shade.