Shield delicate skin and use some pet sun screen for ears, nose or pets in the nude (little or no fur-hair). For that matter keeps pet coats long, brushed and un-matted to avoid over exposure from the sun with access to water at all times especially for the thick haired breeds.
Sooth burns with pure aloe.
Walk with caution avoid times when temperatures are so high heats up asphalt and cement which in turn can burn your pets paw pads.
Don't leave your dog alone in the car period.
Look for signs of heat exhaustion-
heavy panting, dry or bright red gums, thick drool, vomiting, diarrhea
, or wobbly legs basically if your pet is panting up a storm take a break and give them some water.
keep it cool indoors with fans, air conditioners, open windows any way for air circulation.
Beware of riptides and currents if near the ocean. Use a pet life-jacket if going boating with your pet. Always make sure there is a exit for your pet in all bodies of water.
Keep a eye out for parasites.
Opt for pet friendly insect repellents ask your veterinarian.
Don't let your pet get into charcoal briquettes which can cause havoc internally.
Don't feed table scraps which can cause havoc in a pet's tummy.
Avoid certain backyard scrubs that could be poisonous to pets like azaleas and lilies
Avoid yard chemicals like plant foods, pest control, fertilizer which could be poisonous to your pets.
Keep them away from fire works. Keep pets indoors during times of fireworks use.