In one aspect, a system for determining field characteristics of a field across which an implement is being moved may include a tine configured to engage a surface of soil within the field. The system may also include a sensor configured to detect a parameter indicative of a load being applied to the ground engaging tine by the soil. Furthermore, the system may include a controller communicatively coupled to the sensor, with the controller being configured to determine a field characteristic of the field based on measurement signals received from the sensor.