Creating metal sculptures for high-humidity tropical climates presents unique challenges that artists and designers must address to ensure longevity and aesthetic appeal. The primary issue is corrosion, as the constant exposure to moisture and salt air accelerates rust and degradation. Stainless steel, bronze, and aluminum are popular choices due to their corrosion-resistant properties, but even these materials require protective coatings like powder coating or wax to withstand the harsh environment.

Another challenge is thermal expansion, where fluctuating temperatures cause metal to expand and contract, potentially warping the sculpture over time. Proper structural design and material selection can mitigate this issue. Additionally, tropical climates often harbor mold and algae, which can discolor surfaces and compromise integrity. Regular maintenance, including cleaning and reapplying protective treatments, is essential.

Artists must also consider the logistical difficulties of transporting and installing heavy metal sculptures in remote or humid locations, where equipment and expertise may be limited. Despite these hurdles, innovative techniques and materials continue to push the boundaries of outdoor metal art in tropical settings.