Best practices for outdoor workouts in varying weather include dressing appropriately for the conditions. In hot weather, wear light-colored, breathable clothing, and schedule workouts during cooler parts of the day. In colder weather, layer your clothing to trap heat and wear moisture-wicking fabrics. Additionally, staying hydrated is essential regardless of the temperature. Always check the weather forecast and be mindful of extreme conditions, adapting your routine as needed to ensure safety and enjoyment during outdoor activities.