The traditional agriculture system supplies water to crops manually based on a fixed time schedule. This manual irrigation system often fails to measure the real-time environmental parameters. It leads to various problems, such as water wastage and insufficient crop growth due to a lack of real-time monitoring of plants. To address the above-mentioned issues, an Internet of Things (IoT)-enabled smart irrigation system is proposed to offer real-time monitoring of environmental parameters. The proposed system uses an ESP32 Node microcontroller (MCU) and IoT-enabled sensors to automate an irrigation system based on real-time monitoring of Soil moisture level (SL). This system uses various IoT sensors, including DHT11 temperature, humidity, and soil moisture, to monitor environmental parameters in real time. Furthermore, the ESP32 Node MCU processes, controls, and automates irrigation process, and supplies the water to crops only when necessary. Moreover, the proposed system sets temperature and humidity thresholds to know the real-time whether conditions. Whenever temperature and humidity values exceed the thresholds, ESP32 sends an alert to the actuators for the water supply. Additionally, the ESP32 sends this real-time information to a Blynk mobile application or cloud server using Wi-Fi technology. Therefore, farmers and users view and control their irrigation system remotely. The performance of the proposed system is evaluated based on soil moisture, temperature, and humidity over time. As a result, this scheme reduces water waste, human involvement while ensuring ideal SLs for optimal crop growth.