Rain barrels should ideally stand in a shaded area. A shady location helps to minimize water evaporation, keeping the collected rainwater cool and reducing the risk of algae growth. Rain barrels standing in direct sunlight, can heat up quickly, potentially making the water less suitable for some uses in the garden. Additionally, by placing your rain barrel in a shaded spot, you will help protect it from the potential deterioration caused by prolonged sun exposure, extending its lifespan. If finding a completely shaded spot is challenging, consider partially shading the rain barrel using structures like pergolas, awnings, or tall plants. However, ensure that the area you choose still allows easy access for maintenance, such as cleaning the barrel or attaching a hose to the spigot for watering.