Sealyham Terrier

Published: Last updated: by

Average size and lifespan

chihuahua silouette
great dane silouette
Height: 0ft 9in - 0ft 10in
Weight: 22-24lbs
Lifespan: 12 - 14 Years


  • Affection3/5
  • Kid-Friendly3/5
  • Stranger-Friendly2/5
  • Dog-Friendly3/5
  • Barking Amount3/5


  • Grooming Difficulty3/5
  • Shedding Amount3/5
  • Easy to Train2/5
  • Can Be Alone3/5
  • Exercise Need3/5


  • Cold Tolerance4/5
  • Heat Tolerance4/5
  • Apartment-Friendly3/5

Sealyham Terrier Information

Sealyham TerrierThe Sealyham Terrier is in a unique size category at 20-25 pounds: not big enough to be considered a medium breed but much larger than what you’d think of as a small dog. He is strong, muscular and agile, despite standing low to the ground. The Sealyham also sports a unique-looking white coat with striking facial fur.

Over time the popularity of the Sealyham has waned, which is a shame because he is an outgoing, cute, funny and affectionate dog with a wicked sense of humor. They are excellent watchdogs and have been used a therapy dogs due to their friendly nature.

All dogs have their own personality and unique training, causing them to differ slightly from these breed stats. However, please let us know if we made an error in the stats, we appreciate your help!

Breed FAQs

Can Sealyham Terriers be apartment dogs?

Sealyham Terriers aren't ideal for apartments, but might be able to live there successfully if there are enough opportunities to find larger spaces nearby to play.

Can Sealyham Terriers be left alone?

While Sealyham Terriers prefer to be around their owners, they can do fairly well when left alone if necessary.

Are Sealyham Terriers good with kids?

Sealyham Terriers can do fine with kids. They will require some monitoring and training to make sure they get along and react well to unpredictable behavior.

Are Sealyham Terriers friendly with strangers?

Sealyham Terriers tend to be uncomfortable with strangers. They will require extra training effort to socialize them with those outside their family.

Do Sealyham Terriers get along with other dogs?

Although Sealyham Terriers will mostly get along with other dogs, they may have some issues. They can typically be dealt with by socializing them with other dogs.

Do Sealyham Terriers bark a lot?

As far as dogs go, Sealyham Terriers bark an average amount. You can expect them to bark to alert you, get your attention, or when there are strangers or other dogs.

Do Sealyham Terriers shed a lot?

Sealyham Terriers shed a medium amount. They will have seasonal shedding, but aren't terrible to clean up after.

Do Sealyham Terriers need a lot of grooming?

Although Sealyham Terriers require a medium amount of maintenance to keep their coats healthy. Simple tasks like brushing and bathing will suit this breed.

Do Sealyham Terriers need a lot of exercise?

A Sealyham Terrier will need a moderate amount of exercise to be happy. You'll need to plan some basic walks or fetch during the day.

Are Sealyham Terriers easy to train?

Most Sealyham Terriers are stubborn and will take extra work to train. They can still learn trained behaviors, but will take more effort.

Can Sealyham Terriers handle cold weather?

Sealyham Terriers do well in cold weather. You may need to protect their paws, but they'll do well in colder climates.

Can Sealyham Terriers handle hot weather?

Sealyham Terriers do well in hot climates and can stay out longer without overheating.

View All Breeds

cute puppy Getting a New Dog?

Subscribe and get the free guide... 5 things you need to know about raising a puppy!

We won't send you spam. Unsubscribe anytime.