The increasing variety of user device technologies has raised the necessity for ubiquitous content provision, which is characterized by “intelligent” content delivery to end users, irrespectively of their device. Moreover, changes in the user environment create the necessity of appropriately adapting the content and its presentation so that it can be more easily perceived. In this paper, we present a multimodal and adaptive system for Web user es that deals with these challenges. Using as input a generic and abstract form of Web content, our system transforms it to a specific data format suitable for the client device. In addition, it uses contextual information, gathered from the user environment through a wireless sensor network, in order to present the served content in an optimal way under the current environmental conditions.