This article presents a hardware and software platform for remote monitoring vineyards in the Internet of Things (IoT) era. The system proposed is a Wi-Fi based wireless sensor network composed by autonomous and self-powered nodes deployed throughout a vineyard. Such nodes comprise sensors that allow for obtaining exhaustive knowledge on viticulture processes. Since its deployment in 2016, the system has been generating alerts that warn vine growers about the measures that have to be taken and it has stored the historical weather data gathered from various locations of the vineyard. Collected data can then be displayed in a web-based interface that can be accessed through the Internet by using desktop or mobile devices. Its modular design enables the easy addition of alarms, sensors, and actuators. Furthermore, it supports different epidemiological models in order to prevent certain diseases existing in an area.