Signaling apparatus, which comprises: - a support structure comprising a support post internally hollow, which extends longitudinally along an extension direction between a lower end thereof, adapted to be fixed to the ground, and an upper end thereof, and is provided with an internal surface which delimits a channel extending between the lower end and the upper end of said support post; - a signaling body hung to said support structure at the upper end of said support post and susceptible of being moved around said support post by the action of the wind; said signaling apparatus being characterized in that it comprises: - a light source placed at the lower end of said support post and adapted to emit light beams inside channel of said support post, which is provided with an upper window obtained at said upper end and through this upper window said light beams are susceptible of exiting from said channel; the internal surface of said support post being made of reflecting material and being arranged to at least partially reflect said light beams, emitted by said light source, inside said channel towards said upper window; - a reflecting body mounted on said support structure at the upper end of said support post, and provided with a reflecting surface, which is positioned in front of the upper window of said support post in order to intercept said light beams exiting channel of said support post, and faces said signaling body in order to reflect said light beams towards said signaling body mainly along a light reflection axis having at least one substantially radial component relative to the extension direction of said support post. - a support structure comprising a support post internally hollow, which extends longitudinally along an extension direction between a lower end thereof, adapted to be fixed to the ground, and an upper end thereof, and is provided with an internal surface which delimits a channel extending between the lower end and the upper end of said support post; - a signaling body hung to said support structure at the upper end of said support post and susceptible of being moved around said support post by the action of the wind; - a light source placed at the lower end of said support post and adapted to emit light beams inside channel of said support post, which is provided with an upper window obtained at said upper end and through this upper window said light beams are susceptible of exiting from said channel; the internal surface of said support post being made of reflecting material and being arranged to at least partially reflect said light beams, emitted by said light source, inside said channel towards said upper window; - a reflecting body mounted on said support structure at the upper end of said support post, and provided with a reflecting surface, which is positioned in front of the upper window of said support post in order to intercept said light beams exiting channel of said support post, and faces said signaling body in order to reflect said light beams towards said signaling body mainly along a light reflection axis having at least one substantially radial component relative to the extension direction of said support post.