It is generally not recommended to use Mexicos Pineapple Onyx for exterior applications in very rainy climates. Pineapple Onyx is a type of onyx known for its unique honeycomb-like texture and translucent appearance. While it can be a beautiful stone, onyx is typically more porous and less durable than other natural stones like granite or marble.

In very rainy climates, where there is a high risk of moisture penetration, onyx may not withstand constant exposure to moisture and can be susceptible to damage, such as cracking, discoloration, or erosion. Additionally, onyx is more likely to absorb water, which can lead to staining, mold growth, or other forms of deterioration.

If you are looking for a stone suitable for exterior applications in rainy climates, it is generally recommended to choose a material with higher durability and water resistance properties, such as granite or certain types of porcelain or natural quartzite. These materials are usually better equipped to withstand the harsh effects of constant moisture exposure and can maintain their structural integrity and aesthetic appeal over time.