Sussex Spaniel

Retrievers & water dogs
Medium
Median 13.5 y
FCI group 8 · Retrievers, Flushing Dogs and Water Dogs · Derived from the adult weight midpoint (19.5 kg)
Median survival across 142 UK dogs (VetCompass, McMillan 2024) · half live 10–16 y
The Sussex Spaniel is a breed of dog native to Sussex, in southern England. It is a low, compact spaniel and is similar in appearance to the Clumber Spaniel. The Sussex Spaniel is a slow-paced, calm breed.
Even-tempered
Friendly
Calm
Summary from Wikipedia (CC BY-SA) · reference ranges from the Kintail breed dataset

Adult weight

Reference
Male
15.9–23 kg
Female
15.9–23 kg
0
10
20
30
Breed club figure (the American Kennel Club)
Two types. The AKC and the KC/FCI standards describe a different-sized Sussex Spaniel, so Kintail bands your dog against the one your region follows — set it in Settings. KC/FCI type: 38–41 cm. AKC type: 33–38.1 cm.

Weight for age

Stock data
Male
Female
Expected range
01020302m3m4m6m9m12m18m
Expected range from the breed's own adult weight, kilograms. Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band).

Heat cycles · females

Stock data
First heat
8–12 mo
typical
Interval
180 d
typical
Bleeding
~9 d
typical
Proestrus 9d
Estrus 9d
Diestrus 52d
Anestrus 110d
General figures for dogs, not for this breed — individual cycles vary widely.

Questions people ask

Adult males usually weigh 15.9–23 kg and females 15.9–23 kg. Most are close to their full size by around 15 months, though the last little bit of filling out takes longer. Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band).
No Sussex Spaniel cycle figures are published here yet, so this is general guidance rather than a breed number: most females have a first season somewhere between six and fifteen months, and cycles then settle to roughly every 180 days. Smaller breeds tend to start earlier and larger ones later.
The median is 13.5 y. Median survival across 142 UK dogs (VetCompass, McMillan 2024) · half live 10–16 y. How the later years go comes down to weight, teeth, exercise and regular check-ups far more than to the breed.

Nearby breeds

Breeds in the same group — FCI group 8 · Retrievers, Flushing Dogs and Water Dogs.

Sources

Reference
Adult weight
Breed club figure (the American Kennel Club)
Height at the withers
The breed standard (FCI 127)
Size class
Derived from the adult weight midpoint (19.5 kg)
Breed group
FCI group 8 · Retrievers, Flushing Dogs and Water Dogs
Lifespan
Median survival across 142 UK dogs (VetCompass, McMillan 2024) · half live 10–16 y
Weight for age
Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band)
Temperament
Kintail editorial — a description, not a sourced fact
FCI standard
FCI nomenclature, standard 127
Origin
Wikidata (CC0)
Reference figures are static breed data and are shown for every breed. Community aggregates appear as owners log.
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