Rafeiro do Alentejo Weight, Size & Lifespan
How big does a Rafeiro do Alentejo get?
A full-grown Rafeiro do Alentejo is a giant dog, weighing about 77–132 lb as an adult.
- Adult weight
- 77–132 lb
- Also in kilograms
- 34.9–59.9 kg
- Size class
- Giant
- Life expectancy
- 12–14 years
Rafeiro do Alentejo Size
As a giant breed, a Rafeiro do Alentejo keeps growing for longer than a small dog — larger breeds reach their adult weight months later (Hawthorne et al., 2004). Expect steady growth well past the first year.
Rafeiro do Alentejo Lifespan
How long does a Rafeiro do Alentejo live?
The American Kennel Club publishes a life expectancy of 12–14 years for the Rafeiro do Alentejo, on its breed page. That is a figure for the breed, not a prediction for one dog — an individual Rafeiro do Alentejo can fall on either side of it.
Rafeiro do Alentejo Growth Chart
What a Rafeiro do Alentejo puppy weighs week by week, from the growth curve FEDIAF publishes (Nutritional Guidelines 2025, Table VII-8a) for a dog whose expected adult weight is 47.4 kg. It is an average, not a target, and it is only valid from 8 weeks to one year — FEDIAF notes that growth patterns show a certain individual variability. Read a row as the middle of a spread.
| Age | Weight | % of adult weight |
|---|---|---|
| 8 weeks | 22 lb (9.8 kg) | 21% |
| 10 weeks | 30 lb (13.7 kg) | 29% |
| 12 weeks | 37 lb (16.9 kg) | 36% |
| 14 weeks | 43 lb (19.6 kg) | 41% |
| 16 weeks | 48 lb (21.9 kg) | 46% |
| 18 weeks | 53 lb (24.0 kg) | 51% |
| 20 weeks | 57 lb (25.9 kg) | 55% |
| 24 weeks | 64 lb (29.0 kg) | 61% |
| 28 weeks | 70 lb (31.7 kg) | 67% |
| 32 weeks | 75 lb (34.1 kg) | 72% |
| 36 weeks | 80 lb (36.2 kg) | 76% |
| 40 weeks | 84 lb (38.0 kg) | 80% |
| 44 weeks | 87 lb (39.7 kg) | 84% |
| 48 weeks | 91 lb (41.2 kg) | 87% |
| 52 weeks | 94 lb (42.6 kg) | 90% |
Common questions
How much does a full-grown Rafeiro do Alentejo weigh?
A Rafeiro do Alentejo weighs 77–132 lb (35–60 kg) as an adult. That range is the weight the American Kennel Club publishes in the breed's official standard, re-checked here every week — it is a typical weight across many adult dogs, not a target for one dog.
Is a Rafeiro do Alentejo a giant dog?
Yes — a Rafeiro do Alentejo counts as a giant breed, going by the middle of its adult weight range (35–60 kg). The cut-offs between small, medium, large and giant are a common veterinary convention rather than one official standard, so a breed near a boundary can be described either way elsewhere.
When does a Rafeiro do Alentejo stop growing?
Later than a small dog. Hawthorne et al. (2004) measured that larger breeds keep gaining weight for longer, so a Rafeiro do Alentejo is likely to fill out well past its first birthday. We don't publish a month-by-month figure, because no source gives one breed by breed — and an invented number would be worse than none.
Why is there a range instead of one weight?
Because the source publishes a range. Within any breed, weight varies with sex, genetics, build and health, and a mixed-breed dog usually falls between its parents' breeds. Narrowing 77–132 lb down to a single number would look more precise while being less true.
How long does a Rafeiro do Alentejo live?
The American Kennel Club publishes a life expectancy of 12–14 years for the breed, re-checked here every week. That is a figure for the breed, not a prediction for one dog: an individual Rafeiro do Alentejo can fall on either side of it, and how a dog is fed, exercised and cared for moves the odds.
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Weight varies within the Rafeiro do Alentejo by sex, genetics and health, and mixed-breed dogs fall between their parents. This is a typical range, not a guarantee.
Verified on . Based on Breed weights — official AKC breed standards (American Kennel Club, breed pages, accessed 2026-07-29), Breed life expectancy — AKC breed pages (American Kennel Club, breed pages, accessed 2026-08-10), Body-Weight Changes during Growth in Puppies of Different Breeds (Hawthorne et al., Journal of Nutrition, 2004, vol. 134, p. 2027S) and Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs (FEDIAF (European Pet Food Industry Federation), 2025 edition (growth curves Table VII-8a, growth energy VII-8b and VII-10)). See the method.