Can we go out?
In degrees Celsius. Below zero is fine — the cold is covered too.
Fill in the fields above and the result appears on its own.
How it is calculated
Asphalt in the sun was measured at 52°C at 25°C air temperature (Berens, 1970) — well above what most people expect, and enough for a paw burn after fifteen minutes of contact at 50°C. This tool does not compute a surface temperature (published measurements disagree too widely with each other) but shows bands derived from that measurement, and recommends the back-of-hand test, which works reliably every time.
The higher-risk groups (flat-faced breeds, overweight, seniors, heart or airway disease) come from the VetCompass study of over 900,000 dogs — for them the verdict moves one step towards caution.
Where this comes from
- Berens, C. (1970). Asphalt pavement temperatures related to solar radiation. Highway Research Record, 328.
- Hall, E.J. et al. (2020). Risk factors associated with heat-related illness in UK dogs. Scientific Reports, 10, 9128 — the VetCompass study of 905,543 dogs.
This is an estimate from publicly published rules, not veterinary advice. A sick, nursing or pregnant animal is a vet's decision.
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Biskio stores your pet's own risk factors — breed, age, condition — right on their profile.
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