In Monterrey, it is advisable to wear light, breathable clothing during the day, as temperatures can be quite warm. Comfortable shoes are recommended for walking and exploring the various sights. In the evenings it can get cooler, so it is advisable to bring a light jacket or sweater. It is important to dress modestly, especially when visiting religious sites or more traditional areas. Take a hat and sunglasses to protect yourself from the sun and always carry a reusable water bottle to stay hydrated throughout the day.