In hot conditions, it’s essential for horse owners to manage hydration and prevent heat-related stress. Unlike humans, horses can’t tell us when they’re feeling hot, tired, or dehydrated, so it’s up to us to spot the signs and make smart management choices.
Why Hydration is Critical
Horses are made up of around 65–75% water. They can lose up to 10–15 litres of sweat per hour during heavy work in hot weather. Without enough water, a horse is at risk of:
- Dehydration
- Heat stress or heat stroke
- Colic (especially impaction colic)
- Poor performance and recovery
Signs of Dehydration
- To keep your horse healthy in the heat, watch closely for these telltale signs of dehydration;
- Dry, sticky gums
- Sunken eyes
- Tenting skin (when a pinch stays raised)
- Lethargy or reduced appetite
- Dark or reduced urine output
- If your horse shows these signs, act fast and call a vet if symptoms are severe.
Simple Ways to Keep Horses Hydrated
- Always Provide Clean, Cool Water
Fresh water should be available at all times. In hot weather, horses can drink 20–55 litres of water per day, depending on their size and workload. - Add Electrolytes Thoughtfully
Sweating leads to the loss of important minerals such as sodium, potassium, and chloride. During intense exercise or hot conditions, electrolyte supplements can help. - Offer Soaked Feeds
Adding water to pellets, hay cubes, or bran mashes helps boost fluid intake, especially for fussy drinkers. - Shade and Airflow
Ensure your horse has access to cool, shaded areas during the hottest parts of the day, whether in the paddock or stable. Good ventilation is also essential, using fans can help to maintain airflow and reduce heat buildup. - Time Exercise Wisely
Avoid riding or working your horse during the peak heat of the day (typically late morning to mid-afternoon). Instead, aim for early mornings or late evenings when temperatures are cooler. - Monitor Recovery After Exercise
Give access to water immediately post-workout. Most horses will drink within 10–15 minutes if rehydration is needed. Keep an eye out for any signs of distress or dehydration.
Hydration plays a vital role in maintaining horse health, especially in Australia’s tough climate. Whether your horse is a paddock companion or a performance athlete, ensuring they stay well-hydrated helps keep them cool, comfortable, and functioning at their best.