In high-risk or remote environments where immediate medical assistance may not be available is a need for health monitoring with real-time risk management to ensure the safety and well-being of individuals. Therefore, this paper presents a water data communication for SCUBA divers health monitoring and risk management system that aims to enhance diver safety by providing real-time monitoring of critical physiological and environmental parameters, with the added advantage of Electromagnetic (EM) wave communication for data transmission. In this system, various sensors such as a pulse sensor for heart rate, a MAX30102 sensor for oxygen saturation, a MS5803 depth sensor for measuring dive depth, and a DS18B20 temperature sensor for water temperature are connected to the microcontroller. The use of EM wave communication enhances the system’s reliability, ensuring that important health data is transmitted efficiently even in underwater conditions. The system is capable of monitoring critical health metrics in real-time, and if any parameters such as oxygen levels, heart rate, or dive depth go beyond safe thresholds, it triggers alerts to surface personnel or emergency response teams. Overall, this system improves diver safety, providing both real-time health tracking and risk management features while utilizing a more robust and efficient communication method than traditional acoustic systems.