A dog's normal temperature, and how to check it at home
Checked against 3 sources
A healthy dog's temperature usually sits between about 38°C and 39.2°C (100°F to 102.5°F), taken rectally — an ear or a hand on the skin isn't reliable enough to go by123. Call your vet straight away if a reading is 40°C (104°F) or higher, or below about 37.2°C (99°F), or if your dog is collapsed, confused or struggling to breathe, whatever the number says23.
- How to check it
- A digital thermometer in the rectum — not the ear, and not a hand on the skin or nose2
- Indian summers
- Heatstroke risk starts around 40°C, and flat-faced breeds overheat faster3
On this page
Why the exact number helps
Vets measure temperature rectally because it's the most reliable reading; a dry nose, warm ears or panting can mislead you either way12. The sources we checked give a slightly different normal band each — see 'Not fully clear yet' below — so this page uses the combined range across all three123.
If you're calling or messaging a vet rather than visiting — common for a first check in India — having the actual number ready, not just "he feels hot", helps them judge how urgent it is2.
How to check your dog's temperature safely
- Use a digital pet thermometer, not a glass one, with the tip lubricated with a water-based jelly2.
- Keep your dog standing or lying calmly — it helps to have someone else hold and reassure them while you do this2.
- Gently insert the thermometer a short way into the rectum and hold it until it beeps, then remove and wipe it clean2.
- If your dog won't keep still, cries out or seems distressed, stop. Don't force it — go by the signs below instead and call your vet2.
Call a vet now
Checked against vet sources. Not yet reviewed by a vet.
- A reading of 40°C (104°F) or higher23.
- A reading below about 37.2°C (99°F)2.
- Heavy panting, drooling, vomiting, wobbliness or collapse, especially in hot weather3.
- Shivering, unusual lethargy or confusion, especially after a long time outdoors in the cold or wet1.
- You can't get a safe reading and your dog seems unwell — don't keep trying; call instead2. See the full list of emergency signs.
Good to know
This page is only about checking and reading the number. It isn't a guide to cooling a dog down or treating a fever at home — your vet decides what a reading means for your dog and what to do next.
Not fully clear yet
Official sources disagree or leave gaps on these. Confirm before you rely on them.
- The three sources we checked don't give quite the same normal range: Merck's owner guide states about 38.6–38.9°C (101.5–102°F), PDSA states about 38–39°C (100.4–102.2°F), and VCA states about 37.7–39.2°C (100–102.5°F). This page uses the full combined range, 38–39.2°C, as a practical midpoint; ask your vet what's normal for your own dog123.
Sources and how we check
Facts checked against the official and veterinary sources below by Thapki. Not yet reviewed by a vet. Written with AI help from the sources below, then checked line by line; the Thapki team reads and approves every page before it goes live. How we check
- 1What to do in a dog or cat emergency (pet owner version, reviewed Dec 2025)
- 2Taking your pet's temperature
- 3Heatstroke in dogs