Abstract: An automatic downspout drain extension that automatically deploys into a downward position upon the weight of an entrained column of fluid. The automatic downspout drain extension includes a downspout member that depends from a gutter and is secured to a wall of a structure to which the gutter is mounted. The terminal end of the downspout is connected to a flexible elbow having a first end and a second end. The flexible elbow is secured between the downspout and the extension member. The extension member is an elongated conduit that includes an energy dissipater carried by the distal end of the extension member. The energy dissipater includes a liquid absorbing insert. A spring member biases the extension member in the upright position.