One of the most common questions during a UK heatwave is whether it’s safe to walk your dog. The answer depends on the temperature, your dog’s breed and size, and the time of day — but there are some clear guidelines that help.
The pavement test
Tarmac and paving absorb and retain heat, and can reach temperatures far higher than the ambient air. On a 25°C day, tarmac can reach 52°C or more — hot enough to cause burns on a dog’s paws within minutes.
The test: Place the back of your hand on the pavement and hold it there for 7 seconds. If it’s too hot to keep there, it’s too hot for your dog’s paws.
Safe temperatures to walk your dog
The PDSA (People’s Dispensary for Sick Animals) offers this general guide:
| Temperature | Advice |
|---|---|
| Below 20°C | Generally fine for most dogs |
| 20–23°C | Take care with flat-faced breeds and dogs in poor health |
| 24–27°C | Risky — walk only early morning or after sunset |
| Above 28°C | Avoid walking — exercise only in the garden (if shaded) |
These are general guidelines. Flat-faced (brachycephalic) breeds such as bulldogs, pugs and French bulldogs are at risk at much lower temperatures.
When to walk your dog during a heatwave
The safest times are:
- Early morning — before 8am if possible, when pavements are still cool
- Late evening — after 8pm when the sun has gone down and surfaces have had time to cool
Avoid walking between 11am and 3pm — the hottest part of the day.
Signs of heatstroke in dogs
Heatstroke can develop quickly. Know the signs:
- Heavy, laboured panting
- Excessive drooling
- Bright red or pale gums
- Weakness, stumbling or collapse
- Vomiting or diarrhoea
Keeping dogs cool at home
- Provide constant access to fresh, cool water (add ice if they like it)
- Create a cool spot with a dog cooling mat — these absorb body heat and provide a cool surface
- Keep indoor spaces cool using fans or shade
- Avoid leaving dogs in cars — temperatures rise extremely quickly
Breeds most at risk
- Flat-faced (brachycephalic) breeds: Bulldogs, pugs, French bulldogs, Boston terriers
- Heavy-coated breeds: Huskies, Malamutes, Samoyeds
- Very large breeds: Great Danes, Saint Bernards
- Elderly or overweight dogs
- Dogs with heart or respiratory conditions
Mental stimulation instead of walks
On very hot days, physical walks can be replaced with:
- Training sessions indoors with treats
- Puzzle feeders and snuffle mats
- Paddling pools in the garden (many dogs love a shallow splash)
- Frozen treats — stuffed Kongs or frozen carrots are great enrichment
Related: Best dog cooling mats UK · Current heatwave status
Disclaimer: This article is for general information only. For medical advice about heat-related illness, consult the NHS website or your GP. For official heatwave warnings, visit the Met Office.