3 Summer Cat Care Tips

Vetericyn Staff

May 31, 2017

Updated June 16, 2026

Summer brings longer days, open windows, and travel plans, and if you share your home with a cat, it also brings a specific set of health risks worth taking seriously. Heat, disrupted routines, and a surge in biting insects can turn an otherwise healthy cat into a stressed or sick one, often before you notice anything is wrong.

We asked a veterinarian to walk us through the three things she sees cat owners underestimate most during the summer months. These are practical, evidence-based steps, not fluff.

In this article...

3 Essential Summer Cat Care Tips from a Veterinarian Frequently Asked Questions About Summer Cat Care Related Products Sources

3 Essential Summer Cat Care Tips from a Veterinarian

1. Take Heat Seriously — Even for Indoor Cats

Cats are more vulnerable to heat than most people realize. Unlike dogs, they rarely pant to signal distress until the situation is already serious. A rectal temperature above 104°F indicates heat exhaustion¹; anything over 106°F is a medical emergency. By the time your cat looks lethargic or wobbly, you may have a short window before organ damage begins.

The Cornell Feline Health Center recommends keeping fresh water available at all times, both indoors and outside for cats that roam, and suggests that a running fountain may encourage some cats to drink more.² Flat-faced breeds like Persians, senior cats, and kittens are at elevated risk and should be kept indoors during peak heat hours whenever possible.³

What to watch for: Panting, drooling, restlessness, lethargy, and wobbly movement are all red flags. If you see these signs, move your cat to a cool area, offer water (don't force it), and contact your vet immediately. Do not wrap your cat in wet towels — this can actually trap heat against the body.

Practical steps that actually help:

Keep air conditioning or fans running in rooms where your cat spends time
Fill water bowls in multiple rooms and refresh them throughout the day
Plan any outdoor time for early morning or evening, avoiding the 10 a.m.–4 p.m. heat window
Never leave your cat in a parked vehicle — interior temperatures can spike to dangerous levels within minutes

Photo by Oxana Melis on Unsplash

2. Prepare for Stress Before It Starts

Cats are deeply routine-oriented. Summer travel, houseguests, and boarding stay are among the most reliable triggers for feline anxiety, and stressed cats are not just unhappy; they are more vulnerable to illness. Prolonged stress can suppress immune function, disrupt sleep and appetite, and lead to issues like inappropriate elimination or overgrooming.⁴

According to the ASPCA, common signs that a cat is struggling include hiding, not eating, social withdrawal, panting, hypervigilance, dilated pupils, and twitching tails or ears.⁵ These behaviors are easy to miss or misread as the cat 'just being weird' during travel prep. They're worth taking at face value.

If you're boarding your cat this summer:

Send a familiar-smelling item - an unwashed shirt or a small blanket from home can meaningfully reduce anxiety in an unfamiliar environment
Ask your vet about feline pheromone products or vet-approved supplements before the boarding stay begins
For cats with a history of severe anxiety, your vet may recommend short-term anti-anxiety medication - this is a reasonable conversation to have, it doesn't have to be a last resort
Visit the boarding facility in advance if possible, and provide detailed notes about your cat's routine, preferences, and quirks

If your cat stays home while you travel, enrichment matters. The ASPCA suggests leaving on music or TV, rotating toys, and having a trusted person visit at consistent times.⁶ Predictability is calming.

3. Don't Let Parasites Sneak Up on You

Fleas, ticks, mosquitoes, and intestinal worms are year-round concerns, but summer conditions - warmth, humidity, and increased outdoor exposure - accelerate parasite populations significantly.⁷ And here's what many cat owners don't expect: indoor cats are not safe by default.

Fleas can hitch a ride inside on clothing or other pets. Mosquitoes, which transmit heartworm, enter through window screens and open doors. VCA Animal Hospitals notes that a warm spring or fall can extend flea and tick season to nearly 10 months of the year in some climates.⁷

Photo by Nicola Welner on Unsplash

Here's what each parasite can actually do:

Fleas: Cause skin irritation, allergic dermatitis, and hair loss - and can transmit tapeworms when a cat grooms and ingests an infected flea.
Ticks: Carry diseases, including Lyme and others that can be fatal. Even a single bite warrants attention.
Heartworm: Transmitted by mosquitoes, it often goes undiagnosed in cats until it's critical - and unlike in dogs, there is no approved treatment for feline heartworm. Prevention is the only real option.⁸
Intestinal parasites: Roundworms, hookworms, and Giardia rob your cat of essential nutrition. Roundworm infections can be life-threatening in kittens and senior cats.

Your vet can recommend a topical or oral preventative suited to your cat's age, weight, and lifestyle. The Companion Animal Parasite Council recommends year-round protection for all cats, not just those who go outdoors.⁹

When bites, scratches, and skin irritation happen — from fleas, rough play, or outdoor scrapes — prompt wound care matters. Infections can develop quickly, especially in warm weather. Vetericyn's Feline Wound & Skin Care and FoamCare Medicated Shampoo are formulated for use on cats and can help keep minor wounds, hot spots, and irritated skin clean between vet visits.

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The Vetericyn Team

Vetericyn is dedicated to developing the safest, most effective, and innovative animal wellness products available worldwide. We strive to earn the respect and trust of our customers and challenge ourselves to find new ways to give back to the animal community.

Frequently Asked Questions About Summer Cat Care

How hot is too hot for a cat indoors?

Cats can generally tolerate indoor temperatures up to around 85-90°F if they have access to shade, fresh water, and airflow. Beyond that, the risk of heat exhaustion rises, particularly for flat-faced breeds, seniors, kittens, and cats with underlying health conditions. If your home reaches these temperatures regularly during summer, a fan or air conditioning is a genuine health investment, not a luxury.

Can indoor cats really get fleas and ticks?

Yes. Fleas travel on clothing, shoes, and other pets. Ticks can be brought in the same way. Mosquitoes — which transmit heartworm — enter through gaps in screens or open doors. The assumption that indoor cats are parasite-proof is one of the most common and costly mistakes cat owners make.

My cat seems fine during boarding. Should I still worry about stress?

Cats often mask stress until it's significant. A cat that appears calm may still be experiencing elevated cortisol, suppressed appetite, and disrupted sleep. Watch for changes in behavior after the boarding stay ends, like overgrooming, hiding, or litter box issues in the days following return home are common indicators that the experience was harder than it looked.

What's the difference between heat exhaustion and heatstroke in cats?

Heat exhaustion is the earlier stage, typically when body temperature reaches 103-104°F. Signs include restlessness, panting, and drooling. Heatstroke occurs above 104°F and becomes a medical emergency. At that point, the body can no longer regulate temperature on its own, and organ damage is a real risk. Quick action, like moving the cat to a cool space and contacting a vet immediately, is critical.

How do I know if my cat's skin sore is from a flea bite or something else?

Flea-related skin reactions often appear as small, raised red bumps, typically at the base of the tail, the belly, or the back of the hind legs. Cats with flea allergy dermatitis can develop intense itching and open sores from scratching. If you see skin lesions and aren't sure of the cause, a vet visit is the right call. In the meantime, keeping the area clean with a veterinary-grade wound care product can help prevent secondary infection.