When the British summer turns up the heat, its not just us who feel itour horses do too. Hot weather can quickly lead to dehydration, heat stress, and even heat exhaustion in horses, so its crucial to take extra care during a heatwave. Heres how you can keep your horse hydrated and healthy, and make sure they stay cool and comfortable all summer long.1. Provide Constant Access to Fresh WaterCheck water buckets and troughs regularly:Horses drink more in hot weather, so refill and clean water sources at least twice a day.Keep water cool:Position troughs in shaded areas if possible, and top up with fresh, cool water.Encourage drinking:Some horses are fussytry adding a splash of apple juice or anelectrolyte supplementto tempt them.2. Offer ElectrolytesWhy electrolytes matter:Horses lose essential salts through sweat, which can lead to imbalances.How to use:Add ahorse-safe electrolyte supplementto their feed or water as directed, especially if your horse is working or sweating heavily.Tip:Always provide plain water alongside electrolyte water, so your horse can choose.3. Adjust Feeding RoutinesSoaked feeds:Add water to hard feed or offersoaked hayto boost moisture intake.Wet forage:Consider feeding haylage or grass, which naturally contain more water than dry hay.Salt licks:Place asalt lickin the stable or field to encourage natural water intake.4. Provide Ample Shade and VentilationShelter in the field:Make sure your horse has access to shade, whether from trees, hedges, or a field shelter.Stable ventilation:If stabled, keep windows and doors open for airflow, and use fans if safe and practical.5. Adjust Exercise and TurnoutRide early or late:Avoid the midday sunexercise your horse in the early morning or evening when its cooler.Shorten sessions:Keep work light and allow plenty of breaks for water.Monitor closely:Watch for signs of overheatingexcessive sweating, rapid breathing, or lethargy mean its time to stop and cool down.6. Cool Down SafelyHose down:After exercise, cool your horse with tepid water, focusing on large muscle groups. Scrape off excess water to help heat evaporate.Provide shade:Let your horse recover in a cool, shaded spot.Scraper:For effective cooling, use ascraperto remove excess water after hosing.7. Watch for Signs of Dehydration & Heat StressDehydration signs:Sunken eyes, dry gums, tucked-up flanks, loss of skin elasticity (pinch test).Heat stress signs:Heavy sweating, rapid breathing, high temperature, weakness, or collapse.Act fast:If you suspect dehydration or heat stress, move your horse to shade, offer water, and contact your vet immediately.8. Handy Products for Hot WeatherAt Chestnut Mill, we stock a range of products to help your horse stay cool and hydrated:Electrolyte supplementsfor rapid rehydrationSalt licksandmineral blocksSoaking bucketsfor travel or showsFly sheetsfor comfortable turnoutFinal Thought:A little planning goes a long way in a heatwave. By making hydration a top priority and adjusting your routine, youll help your horse stay healthy, happy, and ready to enjoy the sunshine.