Why your dog won't eat in summer: what to do about it

You’ve put down their bowl. They walk over, sniff it, then walk away.

If your dog’s appetite has suddenly dropped now that summer has arrived, you’re not alone. Reduced appetite during UAE summers is one of the most common concerns dog owners bring to their vets.

In many cases, it is completely normal.

As temperatures rise, your dog’s body naturally starts focusing more on staying cool than eating full meals. Here’s why it happens, what’s considered normal, and when it’s time to speak to your vet.

Why dogs eat less in summer

Dogs regulate body temperature mainly through panting. During UAE summers, especially from May onwards, staying cool becomes hard work for the body.

Eating also creates heat.

When your dog digests food, their body generates internal heat as part of the digestive process. In cooler weather this is not a problem. In hot weather, the body naturally tries to avoid producing extra heat wherever possible.

The part of the brain responsible for temperature control also affects appetite. When body temperature rises, hunger signals often decrease too.

Put simply: your dog’s body is trying to stay cool, and eating less is one way it does that.

How much appetite loss is normal?

A mild drop in appetite during hotter months is usually nothing to worry about.

Many healthy adult dogs may:

• eat a little less than usual
• eat more slowly
• seem less excited about meals
• occasionally skip a meal on especially hot days

This is similar to how people often eat lighter meals in extreme heat.

As long as your dog is:

• drinking normally
• maintaining energy levels
• not losing noticeable weight

A temporary reduction in appetite is usually considered normal.

What’s not normal

Contact your vet if your dog has:

• refused food completely for more than 48 hours
• noticeable or sudden weight loss
• vomiting or diarrhoea
• lethargy or weakness
• dry or sticky gums
• disorientation or collapse

These symptoms can point to dehydration, illness, or heat-related complications.

Other reasons dogs stop eating in summer

Dehydration

Dogs that are not drinking enough water can start feeling nauseous or uncomfortable, which often reduces appetite.

A quick way to check hydration at home:
Gently pinch the skin at the back of your dog’s neck. It should spring back immediately. If it stays tented for a second or two, dehydration may be a factor.

Changes in routine

Summer often brings schedule changes:

• school holidays
• travel
• guests visiting
• different walk times
• less outdoor activity

Dogs thrive on routine. Even small disruptions can temporarily affect appetite.

Food loses appeal faster in heat

Dogs rely heavily on smell when deciding whether they want to eat.

Warmer temperatures can dull food aromas faster, especially if meals are left sitting out too long. Your dog may still be hungry, but less interested in food that smells stale or unappetising.

Boredom with the same meals

Summer lethargy can make repetitive meals feel even less exciting.

Sometimes a small change in texture, temperature, or flavour variety can help renew interest in meals.

Parasites and underlying illness

Ticks, fleas, and intestinal parasites become more active during warmer UAE months and can affect appetite.

If your dog is overdue for parasite prevention or a vet check-up, summer is a good time to revisit it.

What to do when your dog won’t eat

1. Feed during cooler hours

Try feeding:

• early morning before 8am
• later evening after 8pm

Avoid peak afternoon heat when your dog is already working hard to stay cool.

2. Offer smaller meals

Large meals generate more heat during digestion.

Smaller, more frequent meals are often easier for dogs to tolerate in hot weather.

3. Add moisture and aroma

Adding moisture to meals can help make them smell more appealing and easier to eat.

Fresh, gently cooked food is naturally moisture-rich and aromatic, which can help encourage appetite during hotter months.

4. Try cooling additions

Some dogs enjoy:

• chilled toppers 
• cucumber
• watermelon cubes (seedless)
• blueberries
• carrots

Cool meals can feel more refreshing during hot weather.

5. Move the food bowl

Even indoors, bowl placement matters.

Avoid feeding areas that are:

• near sunny windows
• poorly ventilated
• warm or humid

A cooler feeding space can help meals stay fresher and more appealing.

6. Keep bowls clean

Bacteria multiply faster in heat.

Wash your dog’s bowl daily with hot soapy water. Even slight odours can put some dogs off their food.

7. Store food properly

Food stored in warm conditions can lose freshness more quickly during UAE summers.

To help maintain freshness:

• keep meals refrigerated or frozen as recommended
• keep packaging sealed properly
• avoid leaving food exposed to heat for long periods

The bottom line

A lighter appetite during UAE summers is often a normal response to heat, not a sign that something is wrong.

Work with your dog’s natural rhythm:

• feed during cooler hours
• prioritise hydration
• add moisture to meals
• keep meals fresh and appealing

As long as your dog remains hydrated, energetic, and maintains a stable weight, a smaller appetite in summer is usually nothing to worry about.

Fresh, gently cooked meals can also help support hydration and appetite during hotter months thanks to their natural moisture content and aroma.

Wunderdog meals are freshly prepared, portioned, and delivered ready to serve. Explore our taster pack to find flavours your dog enjoys most.