The 5-second pavement test: how to check if it’s too hot to walk your dog
Every summer, thousands of dogs suffer burned paws – not because their owners didn’t care, but because they didn’t know the pavement was dangerously hot. The 5-second pavement test is a simple, reliable way to check before every walk. Here’s what it is, how to do it, and why it matters.
What is the 5-second pavement test?
The 5-second pavement test is a quick check recommended by the RSPCA to determine whether a surface is safe for your dog to walk on. The principle is straightforward: if you can’t hold the back of your hand against the pavement for 5 seconds, it’s too hot for your dog’s paws.
Dog paw pads are tougher than human skin, but they’re not immune to heat damage. On a warm sunny day, tarmac and concrete absorb heat far more intensely than the surrounding air – surfaces can reach temperatures of 50°C or more when the air temperature is just 25°C. At those temperatures, paw pad burns can occur in under a minute.
How to do the test
- Find a patch of the pavement you plan to walk on
- Place the back of your hand flat against the surface
- Hold it there for 5 seconds
- If you have to pull your hand away before 5 seconds are up, the pavement is too hot for your dog
Use the back of your hand rather than your palm – the skin is more sensitive and gives you a more accurate reading of what your dog’s paws will experience.
Do this test at the start of every walk during warm weather, not just on days that feel particularly hot. Pavement retains heat well into the evening, so surfaces that were scorching at 2pm can still be dangerously warm at 7pm.
Why pavement gets so much hotter than the air
Air temperature and surface temperature are very different things. On a sunny day with an air temperature of 25°C, dark tarmac can reach 52°C. At 30°C air temperature, that same surface can hit 60°C or higher.
This happens because dark surfaces absorb solar radiation and have low reflectivity. The heat builds up throughout the day, peaking in the early afternoon. Concrete is slightly cooler than tarmac but still reaches dangerous temperatures in direct sun.
Grass, soil and shaded surfaces stay significantly cooler. If the pavement test fails, routing your walk through parks or staying on grass verges is a practical alternative.
Signs that your dog’s paws have been burned
Even with precautions, it’s worth knowing the warning signs of paw pad burns:
- Limping or refusing to walk
- Licking or chewing at paws excessively
- Pads that look darker than usual, or appear red and blistered
- Whimpering or showing signs of pain when walking
If you notice any of these, stop the walk immediately. Move your dog onto cool grass or a cool surface, offer water, and contact your vet. Paw pad burns are painful and can become infected if left untreated.
When to walk instead
The safest times to walk your dog in summer are early morning and evening, when pavement temperatures have had time to cool. As a general guide:
- Before 8am – typically the safest window on hot days
- After 7pm – pavement has usually cooled sufficiently by this point
- Overcast days – cloud cover significantly reduces surface heating even at higher air temperatures
On particularly hot days – above 25°C with strong sun – it may be safer to skip the walk entirely and exercise your dog indoors or in a shaded garden instead.
Breed and size considerations
Some dogs are more vulnerable to heat than others:
Flat-faced breeds (pugs, French bulldogs, English bulldogs, shih tzus, boxers) struggle to regulate body temperature efficiently due to their shortened airways. They are at significantly higher risk of heatstroke even in moderate heat, and should be walked with extra caution.
Small dogs sit closer to the ground where reflected heat is more intense. Their paws also tend to be smaller and more delicate.
Elderly dogs and puppies have less tolerance for heat. Puppies’ paw pads are particularly soft and vulnerable to burns.
Dark-coated dogs absorb more heat from sunlight and can overheat faster than lighter-coated breeds.
The test is a starting point, not the only check
The 5-second test tells you whether the pavement surface is safe, but it doesn’t account for the full picture. Air temperature, humidity, UV index and your dog’s individual health all play a role. A cooler pavement on a humid day can still put a heat-sensitive breed at risk.
Use the pavement test alongside a live weather check for your area – and if in doubt, wait until conditions improve. No walk is worth a trip to the vet.
The advice on this page is for general guidance only and is not a substitute for professional veterinary advice. Walk times and safety thresholds are based on published RSPCA hot weather guidance. Every dog is different – if you’re unsure whether conditions are safe for your dog, err on the side of caution. If your dog shows any signs of heatstroke or distress, move them to a cool place and contact your vet immediately.
