Abstract: An umbrella cover system for covering an umbrella is provided. The umbrella has a center post. The umbrella cover system comprises a round cover having a first side, a second side, and an outer perimeter edge. An aperture is formed in the center of the cover with the aperture having a center point and the center point of the aperture being equidistant from every point of the perimeter edge. A fastening mechanism is positioned between the cover and the umbrella for releasably securing the cover to the umbrella. Upon positioning the first side of the cover against the umbrella with the center post of the umbrella extending through the aperture, the fastening means are activated to releasably secure the cover directly against the umbrella.