There are a few things you can do to keep your Labrador cool in hot weather:

1. Provide plenty of fresh, cool water for your dog to drink. Make sure the water bowl is refilled frequently, especially on hot days.
2. Keep your Labrador indoors or in the shade when the weather is very hot.
3. Provide a wading pool or a sprinkler for your dog to play in and cool off.
4. Avoid exercising your dog during the hottest part of the day. Instead, go for a walk early in the morning or late in the evening when the temperature is cooler.
5. Consider getting your Labrador a cooling vest or jacket to wear on hot days. These can help regulate your dog’s body temperature and keep them cool.
6. Make sure your Labrador has access to a cool, well-ventilated area to rest in.
7. If your dog is prone to overheating, consider getting them a haircut. A shorter coat will help them stay cooler in hot weather.

Remember, it’s important to monitor your dog for signs of overheating, such as heavy panting, drooling, and lethargy. If you notice any of these signs, take steps to cool your dog down immediately and seek veterinary care if necessary.