Yes, you can use your tripod dining table outdoors. However, it is important to keep in mind that the material used for the table should be weather-resistant in order to avoid any damage from moisture or sunlight. Additionally, make sure that the legs of the tripod are securely fastened and not exposed to water as this could weaken them over time. Additionally, consider using a coating such as polyurethane or lacquer on your tripod table in order to protect it from scratches and other elements like rain and snow. Finally, if you plan on leaving your tripod dining table outdoors overnight ensure that you bring it indoors during inclement weather events such as heavy rains or extreme cold temperatures.