Horses exhibit diverse reactions to rain. While some appear indifferent to a light drizzle, others actively seek shelter or display discomfort during intense rainfall. Understanding their response involves examining natural adaptations, observable behaviors, and protective measures owners can implement.
Understanding Horses’ Natural Responses to Rain
Horses possess natural defenses against mild precipitation, yet prolonged or heavy rain can lead to discomfort and potential health issues. Their coats are designed to offer a degree of waterproofing; the outer hairs can flatten and channel water away, protecting the insulating inner layer. However, when rain is persistent, this natural barrier can be compromised, causing the inner coat to get wet and reducing its ability to trap insulating air, which increases heat loss.
Extended exposure to wet conditions can also contribute to skin problems, such as rain rot. This bacterial infection thrives in damp environments, leading to matted hair, scabs, and hair loss. While the bacteria is commonly present on a horse’s skin, continuous moisture can break down the skin’s outer layer, making it vulnerable to infection. Wet hair can also reduce a horse’s ability to retain body heat, potentially increasing the risk of hypothermia, particularly when combined with cold temperatures or wind.
Observing Equine Behavior During Rainfall
Horses display various behaviors in response to rainfall, which often serve as coping mechanisms. Horses standing with their hindquarters turned towards the wind and rain. This posture helps reduce heat loss by presenting the least vulnerable part of their body to the driving precipitation. They may also lower their heads and appear to enter a trance-like state, sometimes closing their eyes.
When rain becomes heavy or is accompanied by strong winds, horses often seek out natural shelter. This can include standing under large trees or finding refuge in ditches or other terrain variations that provide a windbreak. In group settings, horses might huddle together, conserving body heat through social thermoregulation. While some horses might seem unfazed by rain, many will seek protection when conditions become severe.
Protecting Horses from Inclement Weather
Horse owners can take steps to ensure their horses remain comfortable and healthy during rainy periods. Providing adequate shelter is a primary measure. Run-in sheds, typically with three walls and an open side, offer horses a place to escape rain, wind, and sun at their discretion. These shelters allow horses to move freely, promoting natural movement and reducing stress.
Blanketing can be beneficial for certain horses, especially during cold, wet, or windy conditions. Horses with clipped coats, those that are elderly, very young, sick, or underweight may particularly benefit from a waterproof turnout blanket to maintain body warmth and prevent chilling. It is important to choose a waterproof and breathable blanket, as a wet blanket can exacerbate chilling. Proper pasture management is also important; good drainage prevents mud accumulation, which contributes to skin and hoof problems like rain rot and mud fever.