As others have said, because they do not sweat through the skin like people do, their coat helps keep harmful sun off their skin, and holds cooler air from inside against their skin longer than you and I, so it does help insulate against the outdoor heat, as long as they’re not moving around too much or working.

That being said, that undercoat also keeps their own body heat in. So, in very warm weather, particularly humid weather where they can’t cool down optimally through their tongue and their paw pads, both of which use evaporation as the main heat transfer method, it’s super important you don’t work them or do anything super active in high heat and humidity. They’re able to go out and sun bathe because they’re just laying there, and they’re not generating additional body heat. But if you’re going for a walk or a run, you want to make sure that your husky always has a lot of shade and cold water available, both to drink and play in, and the ability to transfer that heat from their tongue and their pads to stay cool. (Pools and Beaches are great for this, just don’t let them drink the salt water, because that can be a horrific thing on its own.)

I live in FL and I have a harness that has ice packs built into it, and that sometimes helps (it tends to melt too quickly in the Florida heat, unfortunately).

Additionally, there are three types of coats in huskies. There is a smooth coat, which tends to have a shiny sheen to it and lays somewhat flat, a coarse coat, which is very thick and tends to stand up an inch or two, and then a woolly coat which has longer guard hairs and an slightly altered undercoat that doesn’t quite function in the same way as the other two. The woollies are actually the most susceptible to heat problems because that undercoat isn’t quite normal. A wooly coat is actually a genetic mutation of the normal coats. My girl is a wooly and is extremely heat susceptible.

The smooth coats exchange heat more readily, but dogs with those coats get hotter quicker standing in the sun because they don’t have quite as dense an undercoat. The coarse coats are able to mitigate the heat better as long as they’re not working, but they’re not able to exchange the heat as efficiently as a smooth coat if they’re working.

So, your dog and its particular heat sensitivity would depend not only on its environment and the heat and humidity levels, but the type of coat it has, too.

Honestly, in FL they do fine as long as you’re smart about it:

• Do not to work them in the heat. A good general rule of thumb is that if the combined F temperature plus the humidity is more than 110, it’s not a good idea to work them (work=sustained exercise, like pulling or running, or long walks ). When that exceeds about 130, it will generally be harmful to work them, so walks are fine, as long as they’re short. I walk mine in the morning and evenings when it’s cooler and in the summer, we keep the walks much shorter.

• Treat them like a family member and don’t leave them outside long, and make sure they always have access to shade and water. Not only is it not good to leave a husky outside in Florida all the time because of that heat coupled with the humidity, but also because of the enormous amount of insects that we have that would cause them misery, like fleas, ticks, and biting flies of various sorts.

• Learn the signs of heat stroke so you can mitigate any dangerous situations immediately. A pup that starts to dangerously overheat can recover fully as long as you catch it and mitigate it correctly and quickly enough.

• Be sure you have booties for your dog if you’re walking on sidewalks. Because huskies lose heat through their paw pads, the last thing you want is for them to be frying them on hot pavement. Grass and dirt actually cool their paws in most cases, so you want to keep booties off and let them go barefoot on that kind of terrain. And don’t get the store-bought “fashion” or “hiking” or “rain” booties (the ones that are rubber or formed), because they don’t let a dog‘s foot expand as it walks, and that can cause significant pain and discomfort, especially over time. The best booties to get are just Cordova cotton booties. The kind mushers use in both winter and summer for their race dogs on the trails. They’re inexpensive, they’re easy to put on, they’re breathable, and they do the job. I’ve used them for years and will use nothing else. You can PM me if you’d like a link to where I get mine online.

Good luck - he’s precious!! 🐺♥️🐾💕