Do Outdoor Rugs Get Ruined By Rain? Outdoor rugs can handle rain, but their durability depends on the material, backing, weave and drainage. Polypropylene and other weather-resistant synthetics offer excellent water and mildew resistance, while proper airflow and drying help prevent odours and damage. Discover how to protect your outdoor rugs and keep them looking their best in wet weather. Read the full blog for all the essential tips!