The waterproof rating of a camera determines how well the device can resist water. A higher rating indicates a greater resistance to water penetration, allowing the camera to be used in wetter conditions or even underwater to certain depths. The specific performance in wet conditions can vary from one camera model to another. Some cameras may be waterproof up to 10 meters, while others may withstand depths of 30 meters or more. Always check the manufacturer's specifications for the exact waterproof capabilities of a camera.