Horse Grooming Tips for a Healthy Summer Coat
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Summer is riding season. Longer days, dry ground, and more time in the saddle make this the season horse owners look forward to all year. It is also the time of year that does the most damage to a horse’s coat if you are not paying attention.
Heat, sweat, sun exposure, insects, and the dusty conditions add up. A horse with a dull, patchy, or irritated coat is not just an aesthetic problem. It is often a sign of something that needs addressing, whether that is nutrition, a grooming routine, or an underlying skin condition that will get worse before it gets better.
These horse grooming tips are built on practical, research-backed guidance. No fluff. Just what actually works.
In this article...
5 Horse Grooming Tips Every Rural Horse Owner Should Know This Summer
1. Start with What Your Horse Is Eating
Brushing and bathing matter, but a coat that glows from across the field starts from the inside. Hair is over 90% protein, with keratin providing the structural foundation for every strand of your horse’s coat.1 When the diet is missing key nutrients, no amount of grooming will fix it.
The nutrients that matter most for coat health are zinc, copper, vitamin A, vitamin E, and omega-3 fatty acids. Zinc supports keratin formation and skin cell repair. Copper maintains coat pigment and connective tissue. Vitamin A helps keep skin from becoming dry and brittle and is naturally abundant in fresh green grass and most commercial feeds. Vitamin E is a meaningful antioxidant for skin integrity, particularly for horses with limited pasture access.2
Omega-3 fatty acids are worth a specific mention because modern hay-and-concentrate diets tend to run low on them. Adding a small amount of flaxseed (around 4 ounces daily) or a flax-based oil can visibly improve coat condition over several weeks. 3 Biotin is another commonly discussed supplement for coat and hoof quality, though most horses produce sufficient amounts through hindgut bacteria. If your horse has a chronically dull or brittle coat, talk to your vet or an equine nutritionist before stacking supplements. Some nutrient interactions, like selenium toxicity, are real risks with over-supplementation. 2
Photo by Melissa Laun on Unsplash
The practical takeaway: If your horse is on a balanced diet with commercial feed, your nutritional baseline is likely fine. If the coat still looks rough despite consistent grooming, get a feed or forage analysis before assuming a grooming product will solve it.
2. Groom Daily, and Do It Right
Daily grooming during summer is not optional if you want a horse that stays comfortable and healthy. Sweat, dust, and dried dirt accumulate quickly, and a dirty coat traps heat against the skin rather than allowing it to dissipate. A clean coat allows perspiration to evaporate freely, which is how horses regulate body temperature during work and turnout.4
A proper summer grooming session follows a logical order. Start with a rubber curry comb used in circular motions to loosen dirt, dried sweat, and shedding hair. Follow with a stiff-bristled brush to flick away what the curry comb lifted. Finish with a soft body brush to smooth the coat, stimulate the skin’s natural oil production, and distribute sebum evenly. That oil production is what creates a natural shine.4
A few specifics worth keeping in mind for summer:
- Always brush before and after work. Dried sweat left on the coat will dull and bleach the hair over time if not removed.
- Pay attention to areas where tack sits. Sweat accumulates under saddle pads, girths, and blankets and can cause dermatitis if left unaddressed.
- During peak shedding, a rubber shedding blade or grooming mitt clears loose hair faster than a standard brush.
- Keep your tools clean. Brushes used on a horse with a skin condition can spread it to healthy horses. Separate sets per horse are worth the investment.
Photo by Christin Noelle on Unsplash
3. Use the Right Shampoo, and Do Not Over-Bathe
Bathing frequency goes up in summer, and for good reason. Heat, insects, and pasture conditions mean horses get dirty faster and sweat more after every ride. Regular baths are appropriate. The caution is in product selection. A shampoo that is too harsh will strip sebum, the natural oil produced by the sebaceous glands that keeps the coat conditioned and the skin protected. Strip that oil too aggressively, and you end up with a dry, dull coat that is more vulnerable to irritation.5
Look for an equine-specific shampoo formulated to be pH-balanced for horse skin. Human shampoos, dish soap, and general-purpose cleaners are not appropriate substitutes, even in a pinch. After shampooing, consider a rinse-out or leave-in conditioner. If your horse works hard and sweats heavily, a traditional equine brace or liniment in the rinse water can help stimulate circulation, clear sweat residue, and leave the coat looking finished. Avoid conditioners that leave silicone residue, which can mat the coat and interfere with further grooming. 5
One rule of thumb: rinse until the water runs completely clear. Shampoo residue left behind is one of the most common causes of dull, flaky post-bath coats.
Vetericyn FoamCare Equine Shampoo — A spray-on, instant-foaming formula designed specifically for equine coats. It delivers nutrients vital to your horse’s skin, conditions as it cleans, and rinses faster than traditional equine shampoos. No harsh stripping, no silicone residue. Vetericyn FoamCare also comes in a Medicated formula to help with rain rot, ringworm, and other skin conditions. Find FoamCare here:
4. Know the Summer Skin Conditions to Watch For
Summer grooming is also your best surveillance tool. Running your hands and a brush over your horse every day gives you the best chance of catching skin problems early, before they become serious. The most common warm-weather skin conditions in horses are rain rot, sweet itch, and summer sores, and all three are more manageable when caught at the start. 6
Here is what to watch for:
- Rain rot (Dermatophilosis): Caused by the bacterium Dermatophilus congolensis, rain rot shows up as crusty, matted tufts of hair that lift away in small clumps, often along the back and rump. Despite the name, summer humidity is as much a trigger as rain. Keep the coat clean and dry, and do not share brushes or tack between affected and unaffected horses, as it is contagious. Antimicrobial shampoo and improved air exposure to the skin resolve most mild cases, but severe infections need a veterinarian. 6
- Sweet itch (Summer Seasonal Recurrent Dermatitis): This is an allergic reaction to the bites of Culicoides midges, the tiny insects often called “no-see-ums.” Horses with sweet itch develop intense itching along the mane, tail base, belly, and face. Left unmanaged, repeated scratching leads to hair loss, thickened skin, and open sores. Stabling at dusk and dawn when midges are most active, using fly sheets with fine mesh, and applying insect repellent consistently are the primary management tools. Your vet can also discuss antihistamine or corticosteroid options for horses with severe reactions.7
- Summer sores (Habronemiasis): These are caused by stomach worm larvae deposited by flies in open wounds or moist areas around the eyes, mouth, and sheath. They appear as raw, ulcerated lesions that do not heal normally. Keeping wounds clean and covered, controlling fly populations, and maintaining a consistent deworming program are the most effective preventive measures. 6
When you spot a wound, bite, or skin sore during grooming, clean it promptly. Infections develop fast in summer heat. For anything that looks infected, is growing in size, or is not responding to basic wound care within a few days, call your veterinarian.
5. Do Not Neglect Hooves and Eyes During Your Grooming Routine
A grooming routine that focuses only on the coat misses two areas that need consistent attention in summer: the hooves and the eyes. Both are directly affected by summer conditions, and both are easy to check daily while you already have your hands on the horse.
Hooves: Dry summer ground causes hooves to harden and crack, while wet or muddy conditions from late-summer storms can soften hoof walls and increase the risk of thrush and white line disease. Pick hooves daily. Keep your farrier on schedule, typically every six to eight weeks, and mention any unusual changes in hoof texture, odor, or structure at each visit. Hoof condition is directly tied to diet, so if you are noticing persistent cracking or slow growth, revisit the zinc, copper, and biotin conversation with your nutritionist. 2
Eyes: Summer brings increased fly pressure, dust, and allergen exposure that can cause weepy, watery eyes in horses. Some discharge is normal, but yellow or thick discharge, swelling around the eye, or a horse keeping one eye closed may signal conjunctivitis or a corneal ulcer, both of which need veterinary attention. Wipe away normal discharge with a clean, damp cloth during grooming. Do not share cloths between horses.
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Frequently Asked Questions
How often should I bathe my horse in summer?
Most horses benefit from one to two full baths per week during peak summer heat, with a rinse-down after hard workouts in between. Over-bathing with a harsh shampoo will strip the coat’s natural oils and leave the skin dry and vulnerable. A plain water rinse after a sweaty ride is fine any day of the week and will not cause the same damage as repeated shampooing.
What causes a dull, rough coat even with regular grooming?
The most common culprits are nutritional deficiencies, parasite burden, or an underlying health issue like gastric ulcers. If your grooming routine is consistent and the coat still looks rough, a fecal egg count and a conversation with your vet about overall health is the right next step. Skin conditions like rain rot can also cause patchy, dull areas that look like poor coat condition, but are actually an active infection.
Is it okay to clip a horse in summer to help manage heat?
Clipping can be appropriate for horses in heavy work that sweat excessively, but a full body clip on a horse that is primarily turned out can do more harm than good. The coat insulates against heat as well as cold, and provides some protection from sunburn and insects. A trace clip or partial clip removing hair where sweat accumulates most is a common middle ground. Talk to your vet or a professional trimmer before going further.
How do I know if my horse has sweet itch or just normal bug bites?
Normal bug bites cause localized bumps that generally resolve in a day or two without intervention. Sweet itch concentrates along the mane, tail base, face, and belly, and the itching is severe enough that horses will rub those areas raw. If your horse is rubbing its mane or tail head aggressively, losing hair in those spots, or developing thickened, crusty skin in those areas over the summer months, sweet itch is the likely diagnosis. Confirm with your vet before starting treatment. 7
When should I call the vet instead of managing a skin issue myself?
Call your vet if a wound is not improving after two or three days of basic wound care, if a skin lesion is growing in size, if you see thick or discolored discharge from the eyes, if your horse is in visible discomfort from itching or pain, or if you see any sores that look raw and fail to form a normal scab. Summer sores in particular will not resolve on their own and require veterinary treatment. When in doubt, a call to your vet costs nothing and can prevent a minor problem from becoming a major one.
Sources
- Tribute Equine Nutrition. “Nutrients for a Shiny Horse Coat.” Tribute Equine Nutrition, 14 Sept. 2022, https://tributeequinenutrition.com/blogs/news/important-nutrients-for-a-healthy-hair-coat.
- Platinum Performance. “Nutrition for Horses’ Skin and Coat Health.” Platinum Performance, https://www.platinumperformance.com/articles/nutrition-horses-skin-coat-health.html.
- Practical Horseman. “Summer Coat Care.” Practical Horseman, 26 Aug. 2022, https://practicalhorseman.com/health/summer-coat-care/.
- Vetericyn Animal Wellness. “How Grooming Your Horse Helps Coat Health.” Vetericyn, 14 June 2020, https://vetericyn.com/blogs/vetericyn/how-grooming-your-horse-helps-coat-health.
- Vetericyn Animal Wellness. “The Basics of Horse Grooming: Tips for a Healthy Coat.” Vetericyn, 21 Apr. 2024, https://vetericyn.com/blogs/vetericyn/horse-grooming.
Mad Barn. “16 Common Skin Diseases in Horses: Identification & Treatment.” Mad Barn, 13 Jan. 2023, https://madbarn.com/skin-diseases-in-horses/.
PetMD. “Sweet Itch in Horses: Symptoms, Causes, and Treatment Options.” PetMD, 14 July 2025, https://www.petmd.com/horse/conditions/skin-health/sweet-itch-in-horses.
