A cat's nose is normally moist. If your cat's nose is consistently dry but they are otherwise acting normally, it could indicate a dry environment, that they are sleeping, or possibly a mild cold. It's important for owners to observe their cat closely for any other symptoms.

A dry nose in an otherwise active cat could be related to several factors including a dry environment, the cat sleeping, or a mild illness. First, if the cat's environment is hot and dry, particularly if they spend extended periods in heated or air-conditioned rooms, their nose may become dry. It's advised to maintain a more humid environment for your cat using a humidifier or leaving a water bowl nearby. Second, a dry nose is normal when a cat is sleeping, so there is no need to worry in this case. Finally, if a cat has a cold, is experiencing a mild fever, or is in the early stages of an infectious disease, their nose may also dry out. If this is the case, it is recommended you take your cat to a veterinarian for an examination and potential treatment.
Early Symptoms of Feline Infectious Peritonitis (FIP)
Early symptoms of FIP are often subtle. Your cat might experience decreased appetite, lethargy, weight loss, and a persistent fever ranging from 39.5 to 40.6 degrees Celsius which may fluctuate. Later-stage symptoms are often classified as 'dry' or 'wet' FIP. Dry FIP primarily affects the eyes and causes nodules in the internal organs, while wet FIP is characterized by fluid buildup in the chest or abdomen. If you suspect your cat may have FIP, consult a veterinarian immediately and seek prompt medical attention if necessary.