Is It Safe To Let My Dog Swim Outdoors This Summer?
Everything vets want you to know before Rover dives in.

I live in Florida, which means lots of beach and boat days on the water. Itâs the whole point of living here! And naturally, many families like to bring their furry friends along for the fun. If youâre not accustomed to having your dog around water, though, you may be wondering, Is it safe to let my dog swim at the lake, in the ocean, or in a creek? Even the most experienced pet parents might not know everything they need to in order to keep their beloved pups safe.
So, we asked a few veterinarians about all the different hazards your dog might encounter, and what you, as their owner, should do to keep them safe â and help them have the most fun â while swimming.
Assess your dogâs experience and the kind of water theyâll be diving into.
If your dog is new to swimming, donât drop anchor in the center of a lake and expect them to hop into the drink. Instead, take them somewhere they can enter gradually until theyâre comfortable enough to swim.
âMy top two concerns when dogs swim are their experience in the water and the cleanliness of the water itself,â says Merck Animal Health veterinarian Dr. Laura Greene. âJust like with kids, if itâs your dogâs first time swimming, donât let them jump into deep water â let them enter gradually and get comfortable going in and out. At the ocean, avoid areas with strong waves or currents. And if you wouldnât swim in the water, your dog probably shouldnât either, especially stagnant water that can harbor bacteria, protozoa, or harmful algae.â
Check your local advisories for any warnings about dangerous algae blooms before swimming, too. âThis is a serious issue, particularly in the summer. Blue-green algae, or cyanobacteria, can produce toxins that can kill dogs. Always check local advisories, and if the water is green, slimy, or has an odd odor, stay away. Bacteria such as Leptospirosis are also found in standing water, so keeping your dog up to date on their shots and rinsing them off after a swim are good preventive measures,â says Dr. Aimee Warner, resident veterinarian at Waggel.
Warner also suggests being mindful of strong currents, submerged objects, rocky drop-offs, and freezing water temperatures that could shock your dog.
Buy your dog a life jacket and get them used to wearing it on land first.
Ideally, your dogâs life jacket will have handles so theyâre easy to grab in the water, and it will be brightly colored so theyâre always visible. Whether a dog should wear a life jacket depends on their swimming experience and the environment, Greene says.
âIn calm, shallow water with easy access, many dogs donât need one. But if theyâre jumping off a boat in deep water or are small breeds, puppies, or brachycephalic dogs â like pugs or bulldogs â a life jacket is a smart safety measure. When in doubt, itâs always better to err on the side of caution and put the jacket on.â
All dogs swimming in moving water with a current or waves should wear a life jacket, regardless of how experienced they are, says Dr. Julie Hunt, veterinarian at Embrace Pet Insurance. That extra bit of flotation will help make swimming less exhausting and help prevent the worst.
Watch for hazards on shore that your dog may not be familiar with.
How many dogs have seen a jellyfish before? Not many, but they wash up on the beach from time to time. Unless you want your pup to bite the very spicy squeaky toy of the sea, you should check out the area youâll be spending time in before letting your dog roam.
âEnvironmental hazards such as jellyfish, glass, sharp shells, fish hooks, and litter can injure curious paws or noses. A glance at the terrain before allowing your dog to sniff can prevent cuts or stings,â Warner says.
Give your dog lots of breaks, whether they want to take them or not.
Our canine companions donât always show outward signs of being tired. Warner says your dog needs a break immediately if they are:
- Swimming erratically
- Struggling to keep their head above water
- Bobbing or trying to float
- Constantly looking to shore
- Trembling, whining, or panting heavily
Many owners donât realize how tiring swimming can be for a dog, so keep your petâs fitness level in mind. Hunt says dogs that can hike for hours without stopping can probably swim for 30 minutes without a break, while a couch potato pup should only do five. Even fit dogs new to swimming should rest after 10 to 15 minutes, even if they seem eager to keep at it, Greene says. Overexertion can lead to muscle strains and even drowning, these experts say.
Always supervise your dog when theyâre swimming.
You wouldnât let your kids swim without an adult present, and you shouldnât let a fur baby do it either, Hunt says. This is true in natural bodies of water and pools at home.
With the right precautions, you and your dog can have so much fun swimming together and enjoying the outdoors. Hereâs to a fun summer of safe swimming with family and our four-legged loved ones.