Ocean waves are the most commercially valuable source of renewable energy, approximately 5.7 million waves per year, have huge resources of wave energy in India. Specifically, this paper aims to estimate the variation of wave energy based on the spatial, seasonal along the Kanyakumari coast and statistically analyze the wave power potential. Significant wave height at maximum was observed at Kanyakumari in the NE, Pallam in the SW monsoon. Likewise, the maximum averaged wave energy period was observed at Pallam in the NE and Chettikulam in the SW monsoon. After the assessment has been made, power density was measured in which the most suitable site for wave energy flux is the Kanyakumari coast especially in the SW monsoon, almost 13.62 kW/m, followed by the sites of Chettikulam of 13.58 kW/m and Vattakkottai of 10.06 kW/m. The variations based on season were also examined, which shows that the all stations have maximum wave power during SW monsoon ranges from roughly 13.62 kW/m at Kanyakumari coast to roughly 10.06 kW/m at Vattakkottai, and the maximum summer wave powers (NE) exist at Vattakkottai, Kanyakumari, and Pallam with the average values of approximately 1.81, 2.96, and 2.04 kW/m respectively. Thus the flux of wave energy is high in SW than NE monsoon. Henceforth, this study was conducted using reanalyzed in situ data, revealing seasonal and directional fluctuations in wave energy flux. Therefore, the possible devices such as wave energy converter and hybrid wind a comparable to the concept of Poseidon’s suspended power plant that can be used at Kanyakumari.