How long does it take for rigor mortis to set in after a cat dies?

Answer by  mammakat (11147)

This depends on your cats size, and air temperature. Generally this will occur between 1-4 hours. Two hours plus/minus is the general guide.

Answer by  eilrol (1431)

I would have to say about 2 to 6 hours of death. Again, it all depends on the cat. My friend's cat died & rigor mortis set in at 6.