Is it too hot to ride? Enter temperature and humidity to assess equine heat stress risk and get an action plan.
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Based on UConn Extension equine heat stress guidance. This tool provides environmental risk assessment for management decisions. If your horse shows signs of heat stroke, call your veterinarian immediately.
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Horses generate significant metabolic heat during exercise and rely primarily on evaporative cooling (sweating) to thermoregulate. When humidity is high, sweat does not evaporate efficiently, and the horse’s core temperature can rise rapidly. Unlike humans, horses have a large muscle mass relative to surface area, making heat dissipation more challenging. The THI captures this relationship: even moderate temperatures become dangerous when humidity is high.
Track your horse’s hydration during hot weather
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