The Dream Ocean Onyx is a type of natural stone commonly used for interior applications such as countertops, flooring, or wall cladding. However, it is not typically recommended for exterior use in very rainy climates.

While natural stones like Onyx are durable and can withstand various weather conditions, they may not be suitable for prolonged exposure to excessive moisture and rain. When subjected to constant moisture, Onyx can become prone to staining, water absorption, and deterioration over time. The weathering process may cause the stone to lose its original beauty and integrity.

If you are specifically looking for a stone to be used in exterior applications in very rainy climates, it is advisable to choose a stone that is specifically recommended for outdoor use and has a higher resistance to moisture, such as granite or certain types of engineered stones. These materials are better equipped to handle the challenges posed by severe or constant rain.

It is always important to consult with a professional stone supplier or architect who can provide you with specific recommendations based on your climate conditions and desired project.