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How heat affects dogs in summer when traveling

Sunday, April 28th, 2026

Care and advice

When summer arrives and we start planning our getaways, there's nothing better than doing so in the company of our best friend. However, the heat can be a silent enemy for them. How can we ensure that the trip is safe and fun? Here we tell you everything!

Heat risks for dogs when traveling in summer

Heat can become a real problem for our dogs, especially when we travel. They don't regulate their temperature like we do; they 'cool down' by panting and, to a lesser extent, through the pads on their paws. If temperatures are too high or the environment is very hot (such as inside a car or on hot asphalt), their bodies cannot cool down quickly enough. This can lead to dangerous situations such as dehydration, heatstroke, or even irreversible damage to their organs.

That's why, in summer more than ever, we must pay attention to their needs, plan trips well, and be very aware of the risks.

Symptoms of heatstroke in dogs during long journeys

Knowing how to detect the early signs of heatstroke can make all the difference during a trip. Often, a small detail can be a sign that something is wrong. Here are some symptoms you should be very aware of:

- Excessive panting and very rapid breathing:
It is normal for dogs to pant when they are hot, but if you see that they cannot calm down, are breathing very heavily, or seem to be struggling, this is a warning sign.

- Excessive salivation:
A little drooling is normal, especially on long journeys, but if they start to salivate excessively or you see that they are drooling continuously, it may be that their body is desperately trying to regulate their temperature.

- Bright red or purple tongue and gums:
The color of the tongue and gums gives us many clues about their health. If you notice that they are much redder than normal or even purple in color, it means that your pet is not getting enough oxygen and needs immediate help.

- Vomiting or diarrhea:
Extreme heat can also affect the digestive system. If your dog suddenly vomits or has diarrhea during the trip, it could be one of the symptoms of developing heatstroke.- Weakness, staggering, or collapse:
One of the most worrying signs is when your dog starts walking as if disoriented, staggering, or, in more serious cases, falling or fainting.

If you notice any of these symptoms, the most important thing is to act quickly: stop the trip, take them to a cool place, offer them water (without forcing them), and contact a veterinarian immediately. The sooner you act, the greater the chances of a full recovery without complications.

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Tips for protecting dogs from the heat during the holidays

The key to enjoying summer with your dog is prevention. Here are some easy but super important tips:

· Avoid peak heat hours: Try to plan your trips early in the morning or late in the afternoon, when the sun is not at its strongest.

· Always have fresh water on hand: Bring enough water for you and your dog. A portable water dispenser or a collapsible bowl can be your best ally.

· Frequent stops: If you are traveling by car, take breaks every so often so your dog can stretch its legs, drink, and cool off.

· Sunscreen for dogs: Yes, it exists. Especially in areas without hair or with light-colored fur, the sun can cause burns.                                                                                                                                                                       & Never leave them alone in the car: Even if it is in the shade or the windows are slightly open, the temperature inside the car can skyrocket in minutes.

Vacations and safety should always go hand in hand.

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Best times of day to travel with dogs in summer

Choosing the right time to travel can make the difference between a fun adventure and an uncomfortable (or dangerous) journey. It is best to travel at dawn, when the air is still cool, or at dusk, when the sun has lost its strength.

Also, if you plan to do any activities during the day (such as hiking or visiting a nature park), try to organize them very early or late in the day. Your dog will thank you, and you'll enjoy yourself much more too.

Essential equipment to keep dogs cool while traveling

When traveling with your dog in the summer, there are some accessories you can't forget to pack. Not only will they make the trip more comfortable for them, but they will also help prevent heat-related health problems. Here are the essentials that are worth taking with you:

1. Cooling mat: These special mats are magical for hot days. Many work without water or electricity: simply upon contact with the dog's body, they begin to absorb heat. They are perfect for placing on the car seat, in the carrier, or even in your accommodation. Your dog will appreciate having a cool place to lie down.

2. Special water bottles for dogs:
It's not enough to just bring water; it's important to have a practical system for offering it to your dog at any time. Some bottles come with a built-in drinking spout, so you can fill a small bowl just by pressing a button. This makes quick stops along the way much easier and prevents water wastage.

3. Cooling vest:
Ideal for outdoor activities. Wet it with cool water, wring it out slightly, and place it on your dog. The vest helps keep their body temperature lower for hours, without having to constantly wet it. It is very useful if you plan to go hiking or visit places where there is not much shade.

4. Portable car fan:
Even with the air conditioning on, sometimes it is not enough to ventilate the entire cabin or cargo area properly. A small portable fan, which you can attach to the seat or carrier, improves air circulation and prevents heat from building up in areas where the dog is traveling.

5. Umbrella or shade tent:
If you are going to make stops at rest areas or spend time outdoors, having an umbrella or tent that provides shade is essential. There won't always be a tree available, and having a shelter to protect yourself from the sun can make the difference between a pleasant break and a moment of risk due to excessive heat.

Carrying this small 'safe summer' kit will allow you to travel with peace of mind, knowing that your dog will be protected and enjoying the trip as much as you are.

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Ideal destinations to beat the heat with your dog

When the heat really kicks in, choosing the right destination can make the difference between an unforgettable vacation and a trip full of worries. Fortunately, there are many places in Spain where you can enjoy the summer with your dog without suffering from extreme temperatures. Here are some ideas that never fail:

Mountain areas:
The mountains are a perfect refuge during the summer. Places such as the Pyrenees, the Picos de Europa, or the Sierra de Gredos offer cooler temperatures, even in the hottest months. You'll also find hiking trails, lakes, and rivers where your dog can cool off and run around happily in nature. Just remember to always bring enough water and protect your dog from the sun in more open areas.Northern beaches: If you prefer the beach, don't worry: there are real paradises in northern Spain where the heat is much more bearable. Asturias, Cantabria, and Galicia not only have beaches with pleasant temperatures, but also beaches with pleasant temperatures. in northern Spain there are real paradises where the heat is much more bearable. Asturias, Cantabria, and Galicia not only have beaches with pleasant temperatures, but also have several pet-friendly areas where your dog can enjoy the sea with you.
Not sure where to start? Here you can check out our Viajes 4Patas' guide to dog-friendly beaches, where you'll find the best beaches to enjoy the summer together.

Rural accommodations with shade:
Another great option is to stay in rural houses or small hotels surrounded by nature and shade. Look for places with trees, large gardens, access to rivers, or even dog-friendly pools. That way, your companion can cool off whenever they need to, and you can relax without any worries. Many rural accommodations already offer special packages for dogs, with water bowls, beds, and other details designed for them. If you want to find truly dog-friendly accommodations, you can take a look at our selection at Viajes 4Patas, where we list rural houses and hotels that think about both you and your furry friend.

Green cities:
There are cities that, despite being urban destinations, are very well prepared for traveling with dogs in the summer. Gijón and San Sebastián, for example, have numerous parks, fountains, dog-friendly beaches, and shaded routes where you can walk even on the hottest days. In addition, they usually have dog-friendly bars and restaurants where your dog will be more than welcome.

In short, the key is to look for a destination with natural spaces, shade, and good temperatures. Because when your dog is comfortable and happy, you'll enjoy the trip twice as much too.

What to do if your dog suffers from heatstroke during a trip

If you suspect your dog is suffering from heatstroke, it is essential to act quickly and calmly:

  1. Take them immediately to a cool, shady place. Find a well-ventilated place, away from the sun.

  2. Cool their body down gradually: Use cool (not cold) water on their neck, chest, belly, and paws. You can wet a towel and put it on top of them.

  3. Offer cool water, but don't force them to drink. Let them decide to drink little by little.

  4. Contact a veterinarian as soon as possible. Even if your dog seems to be recovering, heatstroke can have serious internal consequences that only a professional can assess.

Remember: in these cases, every minute counts.

Frequently asked questions about heat, dogs, and summer travel

¿Can you travel with dogs in summer without risk?
Of course you can, as long as you take the right precautions: choose the right times of day, travel with the right equipment, and watch out for any signs of discomfort.

¿Which breeds suffer most from the heat?
Brachycephalic dogs (such as bulldogs, pugs, and boxers) have more difficulty regulating their temperature. Older dogs, puppies, and dogs with very thick coats are also more sensitive.

Is it advisable to use air conditioning in the car?
Yes, air conditioning can be a great ally. Just make sure that the air does not blow directly on them and that the interior is cool but not cold.

HowHow much water should a dog drink on a trip?
As a general rule, a dog needs between 50 and 60 ml of water per kilo of weight per day, but in summer it may need a little more. Offering fresh water frequently is essential.

Ready to experience an unforgettable summer with your furry friend?
Viajes 4Patas we help you find the best pet-friendly plans, accommodations, and destinations so that traveling with your dog is easy, safe, and, above all, lots of fun!