It depends on the specific type and quality of the rose pink glass. Some types of glass, such as tempered or laminated glass, can be used in exterior applications in rainy climates due to their durability, strength, and resistance to moisture. However, if the rose pink glass is not specifically designed and treated for outdoor use, it may not be suitable for very rainy climates. It is important to consult with a professional or the glass manufacturer to ensure that the specific type of rose pink glass you have can withstand the conditions of your climate.