Almost any reasonable class of finite relational structures has the Ramsey property or a Ramsey expansion. In contrast to that, the list of classes of finite algebras with the Ramsey expansion is surprisingly short. In this paper we show that any nontrivial variety (that is, equationally defined class of algebras) enjoys various dual Ramsey properties. We develop a completely new set of strategies that rely on the fact that right adjoints preserve the Ramsey property while left adjoints preserve the dual Ramsey property, and then treat classes of algebras as Eilenberg-Moore categories for a (co)monad. We first show that for any group G (finite or infinite) finite G-sets have finite small Ramsey degrees, and that every finite G-set has a finite big Ramsey degree in the cofree G-set on countably many cofree generators. We then show that finite algebras in any nontrivial variety have finite dual small Ramsey degrees, and that every finite algebra has finite dual big Ramsey degree in the free algebra on countably many free generators. As usual, these come as consequences of ordered versions of the statements. To the best of our knowledge, this is the first calculation of dual big Ramsey degrees after the Infinite Dual Ramsey Theorem of Carlson and Simpson.