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Sealyham Terrier Temperament (Fearless, Even-Tempered): Can You Handle This Stubborn Fella?

The Sealyham Terrier temperament makes him a really good hunter among other things.

However, he can also be a bit of a challenge to train, as he can be very stubborn.Photo of Sealyham Terrier Standing On Rock | Dog Temperament

Sealyham Terrier Temperament and Personality

There are five essential traits that make up the Sealyham Terrier temperament, and they are:


The Sealyham is not as rowdy or rambunctious as other Terriers. He is less likely to fly off the handle for no reason.

In fact, he would much rather act like a clown for your amusement. He may just surprise you with how much personality he can fit into such a small body!


He is not a very demanding dog. And while some Sealyhams can be problematic insofar as their interactions with other dogs, once they’re properly trained, they’re among the calmest of the Terrier breeds.

For this reason, experts actually recommend the Sealyham as one of the better choices for the elderly. They’re calmer dogs who don’t require a lot of maintenance to feel satisfied.


This breeds alert temperament trait can be problematic if the Sealyham is not taught how to interpret situations.

For instance, an untrained Sealyham may give chase with another dog who otherwise did not pose a threat.

And speaking of being alert, the Sealyham's bark is surprisingly deep, compared to the yappy sound you may expect to hear coming from a Terrier.

One thing’s for sure: When a Sealyham barks,  you are bound to listen!

Photo of Sealyham Terrier Portrait | Dog Temperament


His smaller size does not deter him from hunting whatever prey catches him by the nose.

For this reason, it is imperative that you keep him in a fenced-in area or on a leash whenever he is outside. There’s nothing stopping him from taking off after a scent and ending up either in the road or far from home.

Another area where a fearless dog can become a problem is training. If he thinks he can walk all over you, he will.

Show him you are his leader, don’t take any of his guff. Keep him in check, and he will learn to listen to and respect you.

His outgoing personality can be one of his most admirable traits, so long as you do not allow him to take it to the next level.


The Sealyham displays a friendly temperament with his family and those he knows. Although he may act aloof with strangers until he gets to know them better.

Sealyhams may become scr