Metal sculptures are a popular choice for outdoor art due to their durability and aesthetic appeal. However, when placed in sunny locations, their resistance to UV radiation becomes a critical factor in their longevity. Unlike organic materials, metals do not degrade under UV light in the same way, but they can still experience changes over time.

Most metals, such as bronze, stainless steel, and aluminum, are inherently UV-resistant. They do not fade or weaken when exposed to sunlight, making them ideal for outdoor installations. However, some metals may develop a patina or oxidize, which can alter their appearance. For example, bronze sculptures often develop a greenish patina over time, which many artists and collectors appreciate as part of the aging process.

To enhance UV resistance, protective coatings like clear lacquer or powder coatings can be applied. These layers help prevent oxidation and maintain the sculpture's original finish. Regular maintenance, such as cleaning and reapplying protective coatings, can further extend the lifespan of metal sculptures in sunny environments.

In summary, metal sculptures generally perform well in UV-rich environments due to their natural resilience. With proper care and protective measures, they can remain visually striking and structurally sound for decades, even in the sunniest locations.