Watch-Outs
The local risks for dogs around Charleston, from official agencies and vets.

Heat
Summer, and any hot day
- Heat Advisory in the Charleston area means a heat index of 108 to 112°F. Extreme Heat Warning means 113°F or higher.
- Never leave a pet in a car, even in winter.
- Heat stroke means a body temperature above 103°F. Signs: heavy panting, dry or sticky gums, dark or bright red tongue or gums, staggering, seizures, unresponsiveness.
- Don't leave a pet outdoors unsupervised for more than 10 minutes on hot days.
- Never put a pet in cold water or cool it below 103°F.
Sources: NWS Charleston criteria, NWS heat safety, CVRC Top 5 Summer Emergencies
Salt water
Beach days
- As little as 2 to 3 cups of salt water can be toxic for a large dog, and less than a gallon can be deadly.
- Signs show 30 minutes to several hours later: vomiting, diarrhea, poor coordination, disorientation, seizures.
- Offer fresh water every 15 minutes at the beach.
Sources: CVRC
Snakes
May through October
- South Carolina has 38 snake species, 6 of them venomous: copperhead, coral snake, cottonmouth, eastern diamondback rattlesnake, pygmy rattlesnake, timber rattlesnake.
- All snakes are nonaggressive when left alone.
- CVRC sees several pets a week with snakebites from May to October. Signs: puncture marks, bruising, swelling, weakness, tremors, rapid breathing. Most pets stay in the hospital 12 to 48 hours.
Sources: SCDNR, CVRC
Alligators
Year-round near ponds, lagoons, and marsh edges
- Alligators can surge out of the water to catch prey along the bank. Keep a safe distance from the water's edge.
- They can climb chain fences.
- Feeding alligators is illegal, including tossing fish scraps.
- At Laurel Hill County Park: if an alligator is sunning on a trail, take another route.
SCDNR Operation Game Thief (emergencies): 1-800-922-5431
Sources: SCDNR, Charleston County Parks
Toxic plants
Year-round in yards and parks
- Sago palm: vomiting, black stool, jaundice, thirst, bleeding, liver failure, death.
- Azalea: vomiting, diarrhea, weakness, cardiac failure.
- Oleander: drooling, abdominal pain, diarrhea, depression, death.
- Also toxic to dogs: gardenia, elephant ears, daffodil.
ASPCA Animal Poison Control, 24 hours (a fee may apply): (888) 426-4435
Sources: ASPCA
Ticks
Warm months, wooded trails
- Check your dog, your clothes, and your bags after walks.
- Ticks are common in Francis Marion National Forest.
Sources: CDC, US Forest Service
Algae and unsafe water
Warm months, ponds and lakes
- If your dog drools heavily, seems weak, breathes with effort, or has seizures after swimming, see a vet.
- Sullivan's Island: the pond at Station 28 1/2 is not safe for recreation (high bacteria).
- Check the state DES monitoring map before a lake swim.
Sources: SC Department of Environmental Services, Town of Sullivan's Island
Cold snaps
Winter
- Freeze Warning: 32°F or below during the growing season (Mar 1 to Nov 30).
- Cold Weather Advisory: temperature or wind chill 20 to 11°F. Extreme Cold Warning: 10°F or colder.
Sources: NWS Charleston criteria
Hurricanes and evacuations
Hurricane season
- Most emergency shelters do not accept pets (service animals excepted). Plan a pet-friendly hotel.
- Pack at least 3 days of water and food for your pet, and keep vaccination records current.
Sources: City of Charleston, SC Emergency Management Division
Hunting season
Hunting season, national forest
- In Francis Marion National Forest, put hunter orange or another bright color on your dog (vest, leash, or bandana).
Sources: US Forest Service
Coyotes
Year-round, most active from twilight through the night
- Coyotes live across South Carolina, including Sullivan's Island, and can be a risk to pets.
- Keep your dog leashed and walk in busy areas during the day.
- To scare one off: make loud noises, shout, bang objects, throw small stones, or spray it with a hose.
- If a coyote is aggressive, call 911. Don't turn away or run.
Sullivan's Island Animal Control (sightings): 843-743-7200
Sources: Town of Sullivan's Island
Sea turtle nesting season
May 15 to October 31
- On Sullivan's Island it is unlawful to let a dog roam the dunes or disturb nesting turtles, nests, or hatchlings.
- Other beach towns: not checked yet.
Report an injured or dead turtle (Sullivan's Island): 843-743-7200
Sources: Town of Sullivan's Island
Jellyfish
Beach days, especially after high winds
General guidance, not an official agency. Always see a vet if worried.
- Dead jellyfish on the beach can still sting for weeks. Keep your dog from sniffing or mouthing them.
- Face, feet, belly, and mouth are most at risk.
- Rinse with seawater, not fresh water, and lift off tentacle bits with tape. Don't touch them with bare hands.
- Go to a vet right away for trouble breathing, poor coordination, muscle spasms, several stings, a swollen mouth or tongue, or vomiting.
Sources: Wag! (wagwalking.com), added at Matt's direction
Rules, fines, and no-dog places
Year-round
- Sullivan's Island: town dog license for every dog, $50 for visitors, sold at Town Hall on weekdays only.
- Folly Beach: never off-leash; no dogs on the beach 10am to 6pm May to September; never on the pier; fines up to $1,092.
- Mount Pleasant: leash everywhere except 4 off-leash areas; fines $163.50, then $361.25.
- Kiawah: from Beachwalker Park go left (east); right is critical habitat, no dogs ever; fines up to $500.
- No dogs: Ravenel Bridge walkway, Mount Pleasant Pier, Middleton Place, Caw Caw Interpretive Center, Lighthouse Inlet Heritage Preserve, Charles Towne Landing's Animal Forest, Magnolia's tours.
- Rip currents: on high-risk days, stay out of the water and swim only at beaches with lifeguards.
Sources: Approved beach, park, and trail lists, NWS