As the weather warms up, it’s tempting to stick to your usual walking routine - especiallyy as you might really love to get out in the sunshine. But for dogs, heat can become dangerous far quicker than most owners expect.
The tricky part? There isn’t one safe number. Temperature, humidity, breed, and even pavement all play a role.
This guide breaks it down simply so you can make the safest call for your dog.
Dog Walking Temperature Guide (UK)
Here’s an easy-to-follow chart you can include:
| Temperature |
Risk Level |
What It Means for Your Dog |
| Below 15°C |
🟢 Low risk |
Generally safe for most dogs |
| 16–19°C |
🟡 Mild caution |
Watch vulnerable dogs (flat-faced, older, overweight) |
| 20–23°C |
🟠 Increased risk |
Keep walks short, avoid midday heat |
| 24–27°C |
🔴 High risk |
Many dogs will struggle – consider skipping walks |
| 28–31°C |
🔴 Very dangerous |
Risk of heatstroke – toilet breaks only |
| 32°C+ |
⚫ Extreme danger |
No walks – keep dogs cool indoors |
Even at around 20°C, some dogs can overheat during exercise, especially in direct sun or humidity.
Why Warm Weather Is Risky for Dogs
Dogs don’t sweat like humans. Instead, they rely on panting to cool down—which becomes far less effective in warm or humid conditions.
That means:
- Heat builds up quickly during exercise
- Walks can trigger overheating faster than you expect
- Some dogs are at risk even on mild UK days
It’s Not Just the Air Temperature...
Two key factors make a big difference:
Pavement heat
Surfaces like tarmac can become much hotter than the air and burn paws in seconds.
👉 Quick test:
If you can’t hold your hand on the pavement for 5–10 seconds, it’s too hot for your dog.
High Humidity Days
When the air feels sticky or heavy, your dog can’t cool down properly, even if the temperature doesn’t seem that high.
Best Times to Walk
If it’s safe to walk at all, timing matters:
✔ Early morning (before 8–9am)
✔ Late evening (after 7–8pm)
❌ Avoid midday and early afternoon
Signs Your Dog Is Overheating
Watch closely for:
- Heavy panting
- Drooling
- Slowing down or refusing to walk
- Vomiting
- Wobbling or collapse
If you notice these, stop immediately, cool your dog gradually, and contact a vet.
The Poppys Picnic Perspective
At Poppys Picnic, we always put your dog’s wellbeing first. On hotter days, skipping a walk isn’t being overprotective, it’s being responsible.
When in doubt, choose:
👉 Shorter
👉 Cooler
👉 Safer
Because ultimately a missed walk is always better than heatstroke.
