The Lykoi is celebrated for its the ‘werewolf cat’, with hairless facial mask and roan black-and-white coat. Whether you are welcoming a young kitten into your home or monitoring an adolescent growth spurt, tracking month-by-month physical milestones ensures your companion develops on a healthy, balanced trajectory.
💡 Development Note: For general week-by-week weight targets during early kitten development, compare your milestones with our normal kitten weight gain by week guide.
📋 In This Guide
Lykoi Weight Chart by Month#
Quick Answer: Healthy adult Lykoi cats typically reach full physical maturity between 12 and 18 months, with an overall adult weight range of 6.0 - 13.0 lbs (2.7 - 5.9 kg). Adult males average 8.0 - 13.0 lbs (3.6 - 5.9 kg), while adult females are slightly lighter at 6.0 - 9.0 lbs (2.7 - 4.1 kg).
Below is a month-by-month guideline for male and female Lykoi kittens from early weaning through adult maturity.
| Age | Male Weight Range | Female Weight Range | Physical & Developmental Milestones |
|---|---|---|---|
| 8 Weeks (2 Months) | 1.6 - 2.4 lbs (0.7 - 1.1 kg) | 1.3 - 2.0 lbs (0.6 - 0.9 kg) | Hairless facial mask and paws clear; roan fur appears |
| 12 Weeks (3 Months) | 2.5 - 3.8 lbs (1.1 - 1.7 kg) | 2.0 - 3.0 lbs (0.9 - 1.4 kg) | Hound-like scent tracking and fetch play behaviors |
| 16 Weeks (4 Months) | 3.6 - 5.2 lbs (1.6 - 2.4 kg) | 2.8 - 4.2 lbs (1.3 - 1.9 kg) | First partial molting cycle; black and white hairs mix |
| 6 Months | 5.2 - 7.5 lbs (2.4 - 3.4 kg) | 4.2 - 6.0 lbs (1.9 - 2.7 kg) | Lean athletic frame builds; warm skin needs sunlight care |
| 9 Months | 6.8 - 9.8 lbs (3.1 - 4.4 kg) | 5.2 - 7.5 lbs (2.4 - 3.4 kg) | Solid muscle sets; affectionate hound-like devotion |
| 12 Months (1 Year) | 7.8 - 11.5 lbs (3.5 - 5.2 kg) | 5.8 - 8.5 lbs (2.6 - 3.9 kg) | Baseline adult weight reached; unique werewolf visage |
| 18 Months (Full Adult) | 8.0 - 13.0 lbs (3.6 - 5.9 kg) | 6.0 - 9.0 lbs (2.7 - 4.1 kg) | Full mature muscular density and cyclical roan coat |
The Natural Werewolf Mutation#
From the Greek word for ‘wolf’, Lykoi cats result from a natural gene mutation that prevents hair follicles from growing undercoat hair, causing periodic molting cycles where they lose most of their fur before re-growing it.
Healthy Body Condition Scoring for Growing Kittens#
Because individual genetics, frame size, and bloodlines cause natural variations in weight, hands-on body condition checks are the best way to evaluate healthy growth:
- The Rib Feel: You should easily feel your kitten’s ribs beneath a light layer of tissue without applying firm pressure.
- Waist Contour: Looking down from above, there should be a gentle, visible taper behind the ribcage before the hips begin.
- Abdominal Tuck: When viewed from the side, the lower stomach should slope cleanly upward toward the hindquarters.
Feeding & Nutrition Guidelines#
- High-Quality Protein First: Choose kitten recipes that list named real meats (such as chicken, turkey, or salmon) as the first ingredient to build sturdy muscle tone.
- Support Proper Hydration: Offer wet canned food daily alongside clean, fresh water fountains to promote lifelong urinary tract and kidney health.
- Portion Calibration: Avoid leaving massive bowls of dry food out at all times once your kitten approaches adolescence to prevent excess fat accumulation.



