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🩺 Vet ReviewedBy Reviewer Dr. Ashim Sarkar, BVSc & AH· Last reviewed Apr 22, 2026

How to Tell If Your Dog or Cat Has a Fever, And What to Do

Quick Answer

A normal dog temperature is 38.3–39.2°C. A normal cat temperature is 38.1–39.2°C. Anything above that is a fever. Here is how to check, what causes pet fevers, and when a fever is an emergency.

How to Tell If Your Dog or Cat Has a Fever, And What to Do
Reviewed by Dr. Ashim Sarkar, BVSc & AH, veterinarian with 2.5 years of hands-on experience in small animal practice. This content is for informational purposes only and does not constitute veterinary advice. Always consult a licensed veterinarian for your pet's health concerns.

You cannot tell if your pet has a fever by touching their nose

The old myth that a dry nose means fever and a wet nose means health is wrong. The only reliable way to check your pet's temperature is with a thermometer. A rectal thermometer gives the most accurate reading.

Normal temperature ranges

- Dogs: 38.3°C to 39.2°C (101°F to 102.5°F) - Cats: 38.1°C to 39.2°C (100.5°F to 102.5°F) - Fever: Above 39.5°C (103°F) in both dogs and cats - Dangerous: Above 40.5°C (105°F), organ damage risk - Critical: Above 41°C (106°F), emergency, can be fatal

How to take your pet's temperature at home

You need a digital rectal thermometer (available at any pharmacy for Rs 100-200). 1. Lubricate the tip with petroleum jelly or coconut oil 2. Have someone gently hold your pet still 3. Lift the tail and insert the thermometer about 2-3 cm into the rectum 4. Wait for the beep (usually 30-60 seconds) 5. Clean the thermometer with rubbing alcohol after use 6. Label this thermometer for pet use only

Signs that suggest fever (without a thermometer)

- Warm ears (warmer than usual to touch) - Dry, warm nose - Red or glassy eyes - Lethargy, not interested in food, walks, or play - Shivering or panting - Warm belly - Decreased appetite - Seeking cool surfaces (lying on tiles instead of their bed)

Common causes of fever in Indian pets

Infections

The most common cause. Bacterial infections (from wounds, UTIs, pneumonia), viral infections (parvovirus, distemper), tick-borne diseases (ehrlichiosis, babesiosis), and fungal infections can all cause fever.

Tick-borne diseases

In India, this is a major cause of fever in dogs. If your dog has a fever and has been exposed to ticks, always mention this to your vet. Blood tests for tick-borne pathogens should be part of the workup.

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Vaccination reaction

A mild fever (up to 39.5°C) for 24-48 hours after vaccination is normal. The immune system is responding to the vaccine. If fever persists beyond 48 hours or goes above 40°C, call your vet.

Heat stroke (hyperthermia)

Not technically a fever (which is an immune response) but causes dangerously high body temperature. Common in Indian summers, especially in brachycephalic breeds (Pugs, Bulldogs) and thick-coated breeds (Huskies, Golden Retrievers). Signs: excessive panting, drooling, bright red gums, collapse.

What to do if your pet has a fever

For mild fever (39.5°C to 40°C): - Ensure they have access to fresh, cool water - Place a cool (not cold) damp cloth on their ears and paw pads - Move them to a cool, shaded area - Do not give human fever medications, ibuprofen and paracetamol are toxic to dogs and cats - Monitor temperature every 2 hours - If the fever does not come down within 12-24 hours, see a vet
  • See a vet the same day
  • Apply cool water to paw pads and ears while arranging transport
  • Do not immerse in cold water, this can cause shock
  • This is an emergency. Go to the vet immediately.
  • Cool the pet with wet towels on the way
  • Heat stroke at this level can cause brain damage and death within hours

When fever is an emergency

- Temperature above 40.5°C - Fever with vomiting and diarrhea (dehydration risk) - Fever with pale gums (tick-borne disease) - Fever in puppies or kittens under 4 months - Fever lasting more than 48 hours - Fever with difficulty breathing - Fever after a known tick bite

Track the temperature

Fever often spikes and drops throughout the day. A single reading does not tell the full story. Log temperatures in Omelo every few hours, this pattern helps your vet determine the cause. A fever that spikes in the evening and drops in the morning suggests infection. A steady high fever suggests something more serious.

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Dr. Ashim Sarkar, BVSc & AH

Veterinarian · Medical Reviewer

Reviews all clinical and triage content on Omelo. Hands-on small-animal practice experience across vomiting, dermatology, vaccinations, and emergency triage. All Omelo recommendations pass through Dr. Sarkar before publication.

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