20 Worst Dog Breeds for Warm Weather: Heat-Sensitive Canines to Consider
Dogs are beloved pets, but not all breeds handle hot weather equally well.
Some canines struggle more than others when temperatures rise, making summer a challenging time for certain types of dogs and their owners.
Choosing a dog breed suited for your climate is crucial for the pet’s health and comfort.
This article examines 20 dog breeds that tend to have difficulty in warm environments.
Understanding which dogs are less heat-tolerant can help potential owners make informed decisions about pet selection and care.
1. Bernese Mountain Dog
Bernese Mountain Dogs struggle in warm weather due to their thick double coats. These large, fluffy dogs were bred for cold Alpine climates, making them ill-suited for hot environments.
Their dense fur traps heat close to their bodies, making it difficult for them to cool down efficiently. This can lead to overheating and heat exhaustion in high temperatures.
Bernese Mountain Dogs also have a low tolerance for physical activity in warm weather. They may become lethargic and uncomfortable when temperatures rise.
These dogs require constant access to shade and fresh water during hot days. Owners should limit outdoor activities to cooler hours of the day and provide air-conditioned spaces for their Bernese Mountain Dogs.
Regular grooming is essential to help manage their coat, but even with proper care, these dogs are best suited for cooler climates.
2. Alaskan Malamute
Alaskan Malamutes struggle in warm weather due to their thick double coats. These dogs were bred for cold climates and have difficulty regulating their body temperature in hot conditions.
Their dense fur, designed to protect against Arctic cold, traps heat and makes it challenging for them to cool down. Malamutes are prone to overheating and heat exhaustion when exposed to high temperatures.
These large, muscular dogs also generate significant body heat through physical activity. In warm weather, even moderate exercise can quickly lead to discomfort and potential health risks for Alaskan Malamutes.
Owners must take extra precautions during hot months, including limiting outdoor time, providing ample shade and water, and avoiding strenuous activities. Air conditioning and indoor environments are essential for keeping Alaskan Malamutes comfortable in warm climates.
3. Siberian Husky
Siberian Huskies struggle in warm weather due to their thick double coats. These dogs were bred for cold climates and have difficulty regulating their body temperature in hot conditions.
Huskies can quickly overheat during outdoor activities in warm weather. Their dense fur traps heat, making it challenging for them to cool down efficiently.
Exercise and playtime for Huskies should be limited during hot days. Owners must provide plenty of shade, fresh water, and cool indoor spaces to keep their Huskies comfortable.
Huskies are prone to heat exhaustion and heatstroke in high temperatures. Signs of overheating include excessive panting, drooling, and lethargy. Immediate cooling measures are crucial if these symptoms appear.
Proper grooming is essential for Huskies in warm climates. Regular brushing helps remove loose undercoat, which can improve air circulation and reduce heat retention.
4. Saint Bernard
Saint Bernards are gentle giants known for their thick, heavy coats. This breed struggles in warm weather due to their large size and dense fur.
These dogs originated in the cold Alpine mountains, making them ill-suited for hot climates. Their bodies are designed to retain heat, which becomes problematic in high temperatures.
Saint Bernards are prone to overheating and can quickly become uncomfortable in warm conditions. They require constant access to shade and water during hot days.
Exercise should be limited to cooler hours of the day for Saint Bernards in warm climates. Their massive size also means they generate more body heat during activity.
Owners must be vigilant for signs of heat stress in Saint Bernards, such as excessive panting or lethargy. Regular grooming can help manage their thick coats in warmer weather.
5. Great Pyrenees
Great Pyrenees dogs are not well-suited for warm weather due to their thick, double coats. These large, fluffy dogs were originally bred for cold mountain climates, making them ill-equipped for heat.
Their heavy white fur acts as insulation, trapping warmth close to their bodies. This can lead to overheating in hot environments, especially during physical activity.
Great Pyrenees have a tendency to pant heavily in warm temperatures as they struggle to cool down. They may also become lethargic and seek out cool spots to rest.
Owners of Great Pyrenees in warm climates need to take extra precautions. This includes providing ample shade, fresh water, and limiting outdoor exercise to cooler parts of the day.
Regular grooming is essential to remove loose fur and prevent matting, which can further trap heat. Some owners opt for professional trimming during summer months to help their Great Pyrenees stay more comfortable.
6. Newfoundland
Newfoundlands are large, heavy-coated dogs that struggle in warm weather. Their thick double coat, designed for cold water rescues, traps heat and makes it difficult for them to cool down.
These gentle giants have a low tolerance for high temperatures. They can quickly overheat during outdoor activities in hot climates.
Newfoundlands are prone to heat exhaustion and heatstroke. Their dark coat color absorbs more sunlight, further increasing their risk of overheating.
Owners must take extra precautions to keep Newfoundlands cool in warm weather. This includes providing ample shade, fresh water, and limiting outdoor exercise to cooler hours of the day.
Regular grooming is essential to remove loose undercoat, which can help improve air circulation through their fur. However, shaving is not recommended as it can interfere with their natural temperature regulation.
7. Tibetan Mastiff
Tibetan Mastiffs struggle in warm weather due to their thick, heavy coats. These large dogs were bred for cold Himalayan climates, making them ill-suited for hot environments.
Their dense double coat, while perfect for frigid temperatures, becomes a liability in heat. This fur traps warmth close to their bodies, making it difficult for them to cool down efficiently.
Tibetan Mastiffs have a low tolerance for physical activity in hot weather. They may quickly become overheated and lethargic, preferring to rest in cooler spots.
These dogs require constant access to shade and fresh water during warm seasons. Owners should limit outdoor activities to cooler parts of the day and provide indoor comfort with air conditioning when possible.
8. American Eskimo Dog
American Eskimo Dogs are built for cold climates, making them unsuitable for warm weather. Their thick, double-layered coats provide excellent insulation against frigid temperatures but can cause overheating in hot environments.
These dogs have difficulty regulating their body temperature in warm conditions. They pant excessively and may become lethargic when exposed to high heat and humidity.
American Eskimo Dogs require constant access to shade and fresh water in warm weather. Their exercise routines should be adjusted during hot seasons, with outdoor activities limited to cooler parts of the day.
Owners must be vigilant for signs of heat stress in these dogs. Regular grooming is essential to remove loose undercoat, which can help slightly improve their heat tolerance.
9. Tibetan Terrier
Tibetan Terriers are known for their thick, double coats that provide excellent insulation in cold climates. This dense fur, however, can be problematic in warm weather.
These dogs struggle to regulate their body temperature effectively when temperatures rise. Their heavy coats trap heat, making it difficult for them to cool down naturally.
Tibetan Terriers require frequent grooming and may need regular haircuts during summer months to help them cope with the heat. Without proper care, they can quickly become overheated and uncomfortable.
These dogs are not well-suited for outdoor activities in hot climates. They prefer cooler environments and may become lethargic or irritable in warm weather.
Owners should provide plenty of shade, fresh water, and air conditioning to keep Tibetan Terriers comfortable during hot spells. Extra precautions are necessary to prevent heat-related health issues in these furry companions.
10. Old English Sheepdog
Old English Sheepdogs are not well-suited for warm weather due to their thick, heavy double coat. This breed’s dense fur, while excellent for cold climates, can cause overheating in hot conditions.
Their long hair requires regular grooming and can become matted in humid environments. The Old English Sheepdog’s coat also traps heat close to their body, making it difficult for them to cool down efficiently.
These dogs have a low tolerance for high temperatures and can quickly become uncomfortable in warm weather. They are prone to heat exhaustion and heatstroke if not carefully monitored and kept cool.
Owners should provide ample shade, fresh water, and air conditioning for Old English Sheepdogs during hot seasons. Regular grooming and trimming can help alleviate some heat-related discomfort, but may not be sufficient in extremely warm climates.
11. Chow Chow
Chow Chows are not well-suited for warm climates due to their thick double coats. These fluffy dogs originated in cold northern China, adapting to chilly temperatures.
Their dense fur acts as insulation, making it challenging for them to cool down in hot weather. Chow Chows are prone to overheating and can quickly become uncomfortable in high temperatures.
These dogs have a low tolerance for heat and may experience difficulty breathing in warm conditions. Their short muzzles can contribute to respiratory issues when temperatures rise.
Chow Chows require extra care during summer months. Owners should provide ample shade, fresh water, and limit outdoor activities during peak heat hours to keep their Chow Chows safe and comfortable.
12. Akita
Akitas are large, muscular dogs originating from Japan. Their thick double coat is designed for cold climates, making them poorly suited for warm weather.
These dogs have difficulty regulating their body temperature in hot conditions. Their dense fur traps heat, increasing the risk of overheating and heat stroke.
Akitas are not fond of excessive heat and may become lethargic or irritable in warm environments. They require constant access to shade and fresh water during hot days.
Exercise should be limited to cooler hours of the day for Akitas in warm climates. Regular grooming is essential to remove loose undercoat, which can help somewhat with heat management.
Owners in warm regions should be vigilant for signs of heat stress in their Akitas. Air conditioning or other cooling methods are often necessary to keep these dogs comfortable during hot seasons.
13. Keeshond
The Keeshond is a medium-sized breed known for its thick, double coat. This fluffy fur serves them well in cold climates but can be problematic in warm weather.
Keeshonds have a dense undercoat and a long, profuse outer coat that insulates them effectively. This combination makes it challenging for them to regulate their body temperature in hot conditions.
Their coat can trap heat close to their skin, making it difficult for them to cool down naturally. This puts Keeshonds at increased risk of overheating and heat stroke in warm environments.
Regular grooming and proper coat maintenance are essential for Keeshonds in warmer climates. Owners should be cautious about exercising these dogs during hot weather and provide ample shade and water.
Keeshonds are better suited to cooler climates where their thick coats can be an advantage rather than a hindrance.
14. Norwegian Elkhound
Norwegian Elkhounds are robust, double-coated dogs bred for hunting in cold climates. Their thick fur, while excellent for winter, can be problematic in warm weather.
These dogs have a dense undercoat and a coarse outer coat, which provides insulation against heat and cold. This fur makes it challenging for them to regulate their body temperature in hot environments.
Norwegian Elkhounds are prone to overheating and can suffer from heat exhaustion if not properly managed in warm weather. They require constant access to shade and fresh water during hot days.
Exercise for Norwegian Elkhounds should be limited to cooler hours of the day in warm climates. Owners must be vigilant for signs of heat stress, such as excessive panting or lethargy.
Regular grooming is essential to remove loose fur and prevent matting, which can exacerbate heat retention. Trimming their coat for summer is not recommended, as it can interfere with their natural temperature regulation.
15. Samoyed
Samoyeds are known for their thick, white double coats, which provide excellent insulation in cold climates. This dense fur, while beneficial in arctic regions, can be problematic in warm weather.
The breed’s heavy coat traps heat close to their body, making it difficult for them to cool down in high temperatures. Samoyeds are prone to overheating and heat exhaustion when exposed to hot environments.
These dogs require constant access to shade and fresh water during warm weather. Regular grooming is essential to remove loose fur and prevent matting, which can further impede heat dissipation.
Samoyeds are not well-suited for extended outdoor activities in hot climates. Owners should limit exercise to cooler parts of the day and provide indoor cooling options for their Samoyed companions.
16. Anatolian Shepherd
Anatolian Shepherds struggle in warm weather due to their large size and thick double coat. These dogs were originally bred for guarding livestock in the mountainous regions of Turkey.
Their dense fur, while protective against cold temperatures, becomes a burden in hot climates. Anatolian Shepherds can quickly overheat during intense physical activity or prolonged exposure to high temperatures.
These dogs require constant access to shade and fresh water in warm environments. Regular grooming is essential to remove loose undercoat, which can trap heat close to their skin.
Anatolian Shepherds are not suited for outdoor living in hot regions. They need air-conditioned indoor spaces to stay comfortable and avoid heat-related health issues.
17. Leonberger
Leonbergers are large, powerful dogs with thick, double coats that can make them uncomfortable in warm weather. Their dense fur provides excellent insulation during cold winters but becomes a burden in hot climates.
These gentle giants have a low heat tolerance and can quickly overheat during physical activity in warm temperatures. Their size also contributes to their difficulty in regulating body temperature efficiently.
Leonbergers require frequent grooming and may shed heavily in warmer months. This can lead to matting and skin issues if not properly maintained. Their long fur can trap heat close to their bodies, exacerbating the effects of high temperatures.
Owners should exercise caution when taking Leonbergers outdoors during hot weather. Providing ample shade, cool water, and limiting outdoor activities to cooler parts of the day is essential for their well-being in warm climates.
18. Karakachan
The Karakachan is a large breed of livestock guardian dog originating from Bulgaria. These dogs have a thick, dense double coat that provides excellent insulation in cold climates.
While this coat serves them well in winter, it becomes a disadvantage in warm weather. Karakachans struggle to regulate their body temperature efficiently when temperatures rise.
Their size also contributes to heat sensitivity. As a large breed, they generate more body heat and have a harder time cooling down compared to smaller dogs.
Karakachans are not well-suited for hot climates or intense summer heat. They require plenty of shade, water, and air conditioning to stay comfortable in warm weather.
Owners should be cautious about exercising Karakachans during hot days. It’s best to limit outdoor activities to cooler morning or evening hours to prevent overheating.
19. Pyrenean Mastiff
The Pyrenean Mastiff is a large breed that struggles in warm weather. Their thick, double coat provides insulation for cold climates but can lead to overheating in hot conditions.
These dogs have a low tolerance for heat and can become lethargic or uncomfortable when temperatures rise. Their size also contributes to heat retention, making it difficult for them to cool down quickly.
Pyrenean Mastiffs require constant access to shade and water during warm weather. They may pant excessively and seek out cool surfaces to lie on when temperatures increase.
Exercise should be limited to cooler parts of the day for this breed in hot climates. Owners must be vigilant about signs of heat stress, such as excessive drooling or difficulty breathing.
20. Finnish Lapphund
Finnish Lapphunds are not well-suited for warm climates. Their thick double coats, designed for harsh Arctic conditions, can cause overheating in hot weather.
These dogs have a dense undercoat and long outer fur, which provides excellent insulation in cold environments. However, this same coat becomes a burden in high temperatures.
Finnish Lapphunds are prone to heat exhaustion and can quickly become uncomfortable in warm weather. They require constant access to shade and water during hot days.
Owners in warm climates must take extra precautions to keep their Finnish Lapphunds cool. This includes limiting outdoor activities during peak heat hours and providing cool, indoor spaces.
Regular grooming is essential to manage their heavy coat, but shaving is not recommended as it can interfere with their natural temperature regulation.
Climate Impact on Dog Health
Warm weather can significantly affect canine health and comfort. Elevated temperatures pose unique challenges for dogs, requiring special attention from owners.
Heat Stress and Heatstroke
Dogs are susceptible to heat-related illnesses in hot climates. Their bodies struggle to regulate temperature through panting when ambient heat is high. Signs of heat stress include excessive drooling, rapid breathing, and lethargy.
Heatstroke is a severe condition that can occur quickly in warm weather. Symptoms include vomiting, disorientation, and collapse. Brachycephalic breeds, like Bulldogs and Pugs, are particularly vulnerable due to their shortened airways.
Owners should limit outdoor activities during peak heat hours. Providing shade and cool resting areas is crucial. Regular breaks and access to air conditioning help prevent overheating.
Hydration Needs
Proper hydration is essential for dogs in warm climates. Heat increases water loss through panting and sweating through paw pads.
Dogs require more water intake during hot weather. Fresh, clean water should be available at all times. Some tips for encouraging hydration:
- Use multiple water bowls around the home
- Add ice cubes to water for added appeal
- Consider water fountains for moving water
Monitoring urine color helps assess hydration. Dark yellow urine indicates dehydration. Wet food can also increase moisture intake for dogs reluctant to drink enough water.
Signs Your Dog Is Overheating
Dogs rely on panting to regulate their body temperature, but in extreme heat, this mechanism can fail. Recognizing the signs of overheating is crucial for pet owners to prevent heat exhaustion or stroke.
Behavioral Changes
Excessive panting is often the first sign of overheating in dogs. Watch for rapid, shallow breathing that doesn’t slow down even when the dog is resting. Restlessness or agitation may also indicate discomfort from rising body temperature.
Dogs might seek out cool surfaces to lie on, such as tile floors or shaded areas. Some may become unusually lethargic or unresponsive to commands. In severe cases, dogs can appear disoriented or confused.
Drooling more than usual is another behavioral indicator. This is the body’s attempt to cool down through evaporation.
Physical Symptoms
As overheating progresses, physical symptoms become more apparent. A dog’s gums and tongue may turn bright red or purple due to increased blood flow. In some cases, the gums might appear dry or tacky to the touch.
Body temperature rises above the normal range of 101-102.5°F (38.3-39.2°C). Without a thermometer, owners can feel the dog’s ears, paws, and stomach for unusual warmth.
Rapid pulse and heartbeat are common as the body works harder to cool down. In advanced stages, vomiting or diarrhea may occur. Some dogs may experience muscle tremors or seizures.
Severe cases can lead to collapse or loss of consciousness, requiring immediate veterinary attention.
Keeping Your Dog Cool in Warm Weather
Warm weather can pose risks for dogs, but proper cooling techniques and suitable activities can help keep them comfortable and safe.
Cooling Techniques
Provide plenty of fresh, cool water for your dog. Change it frequently and consider adding ice cubes. Place water bowls in shaded areas both indoors and outdoors.
Create cool spots for your dog to rest. Set up fans or use air conditioning in your home. Provide cooling mats or elevated beds to allow air circulation.
Use frozen treats to help your dog cool down. Freeze low-sodium chicken broth in ice cube trays or stuff a Kong toy with yogurt and freeze it.
Brush your dog regularly to remove excess fur. This helps improve air circulation to their skin. Consider a short summer haircut for long-haired breeds.
Suitable Activities
Plan walks and exercise during cooler parts of the day. Early morning or late evening are ideal times to avoid peak heat.
Engage in water-based activities. Set up a kiddie pool or sprinkler for your dog to play in. Take them swimming if you have access to a safe body of water.
Play indoor games on hot days. Hide treats for your dog to find or teach them new tricks in the comfort of air conditioning.
Opt for mental stimulation activities. Use puzzle toys or snuffle mats to keep your dog engaged without overexertion in the heat.