Bouncy castles can be safe to use in hot weather as long as certain safety precautions are taken. It is important to ensure that the surface of the bouncy castle is not too hot to the touch before allowing children to play on it, as the heat can cause burns. Additionally, it is important to provide shade and plenty of water for children to stay hydrated while playing on the bouncy castle. It’s also important to regularly check and maintain the inflatable for any damage or wear and tear that could potentially cause a hazard.