Horses are generally good at regulating their body temperature, but hot weather can still affect their comfort and wellbeing. High temperatures, humidity, and poor airflow can quickly make stables uncomfortable.
Stable design plays an important role in controlling these factors. However, day-to-day horse management is just as important.
In this article, we look at how to keep horses cool, hydrated, and comfortable during hot weather.
Keeping horses comfortable in hot conditions comes down to a few simple principles: reduce heat build-up, support cooling, and avoid unnecessary strain during the hottest parts of the day.
Shade is key - direct sun increases heat load and can quickly raise body temperature, making it harder for horses to cool themselves. Give them reliable access to shade, whether that’s from trees, field shelters, or a stable.
During very hot weather, some horses may be more comfortable inside a well-ventilated stable than out in direct sun.
Airflow helps prevent heat from building up. Even light airflow can make a noticeable difference, especially in enclosed spaces. Keep doors and windows open where possible to allow air to move through the building.
The most important requirement is unrestricted access to fresh water. Horses will drink more in hot weather, so check and refill troughs and buckets regularly, keeping them clean to encourage drinking.
It also helps to adjust daily routines to reduce strain during the hottest parts of the day.
Water intake increases significantly in hot weather, as horses lose fluids through sweating. Ensuring they drink enough is one of the most important parts of summer horse management.
For a typical 500kg horse, intake can rise to around 50–70 litres per day in warm conditions, especially if the horse is in training. Larger horses, active horses, and those on a hay-based diet will typically need more.
If horses do not have access to enough water, the risk of dehydration increases quickly.
Provide multiple water sources and place them in shaded areas to keep the water cooler. In hot weather, clean troughs and buckets regularly to prevent algae and bacterial growth.
Pay attention if your horse starts drinking less than usual, as this can indicate an early problem.
You can encourage your horses to drink by lightly flavouring water, for example, with a small amount of apple juice. Always provide plain water alongside this, so they can choose.
Adding moisture to their diet can also support horse hydration. According to the British Horse Society, soaking or steaming hay is a simple way to increase water intake, especially for horses that do not drink enough.
Soaking hay for 6–12 hours in cold water, or for about 1 hour in warm water, adds moisture and can help reduce mould and bacteria. Make any changes to forage gradually to reduce the risk of digestive problems.
Adjusting your horse’s daily routine is one of the simplest ways to reduce heat stress.
During hot weather, turn horses out early in the morning or later in the evening, when conditions are cooler and more comfortable.
Some horses are more comfortable being in a stable during peak heat, especially if there is good shade and airflow. Others may prefer to stay in the paddock, as long as they have access to shade and water. Monitoring their behaviour will help you decide what works best.
It is also a good idea to reduce their workload. Lower exercise intensity and duration, and allow more time for rest and recovery. Bear in mind that even routine handling, such as grooming or tacking up, can feel more demanding in high temperatures.
Finally, planning any travel in advance can help reduce strain. Where possible, arrange it for cooler parts of the day.
Cooling a horse down after exercise is essential in hot weather. Horses generate significant heat during work, and without effective cooling, it can build up quickly.
Start by slowing the pace gradually, allowing the horse’s breathing and heart rate to begin returning to normal.
Hosing with cool water is one of the most effective ways to reduce body temperature. Focus on large muscle areas such as the neck, shoulders, and hindquarters, where heat tends to build up. In hot conditions, repeat this until the horse feels cooler and breathing returns to normal. Keep the horse walking between hosing rounds to help circulation and avoid stiffness.
Heat stress and dehydration can develop quickly in hot weather.
According to the British Horse Society, early signs to watch for include:
More serious signs of heat exhaustion include:
One sign on its own doesn’t always mean dehydration, but a combination of symptoms makes it more likely and more serious.
If you think your horse is affected, move them into shade, offer water, and start cooling with cold water. If there is no quick improvement, contact a vet immediately.
During heatwaves, extra care and closer monitoring are essential.
Check horses more frequently throughout the day, paying attention to water intake, behaviour, and signs of heat stress. Conditions can change quickly, especially during long hot spells.
Make more water available and consider adding electrolytes. Pause exercise and focus on keeping horses comfortable rather than maintaining routine workloads.
Flies and biting insects are more active in warm conditions and can cause irritation, stress, and disruption to normal behaviour.
To reduce exposure:
While day-to-day management plays a key role, the stables themselves can make a big difference to how easily horses cope with hot weather.
Features such as vents, talking grilles, American barn top doors, and extended canopies help reduce heat buildup and improve airflow. We discuss this in more detail in this article.
At Chart Stables, our timber stable blocks are designed with ventilation, shelter, and everyday usability in mind. Get in touch if you’d like support creating stables that suit your horses’ needs.
