The pledge by various countries for net-zero carbon emission and to fulfil the Paris agreement (COP21, France, 2015), UNFCCC, it is inevitable to increase our energy production from renewable resources. Offshore wind is a giant leap in such ambition. The longevity of offshore wind turbines (OWTs) depends on their foundations, which cost around one-fifth. of the total project cost. A special emphasis on the analysis of the OWT foundation is thus essential for the overall economics and stability of the structure. Monopile is one of the popular (about 80% in use) OWT foundation options due to its cost-effectiveness, easy fabrication, and suitability for installation at shallow depths. The present study aims to determine the static and dynamic lateral load capacity of a monopile. The dynamic analysis was done using a pseudo-static approach. A three-dimensional (3D) finite element model (FEM) is generated in ABAQUS pkg to determine the effect of various parameters like slenderness effect of pile (L/D), friction angle of soil (ϕ), and seismic acceleration coefficients (kh and kv) on the lateral capacity of the monopile in sandy soil. The monopile is modelled as linear elastic, and the soil is modelled using the Mohr-Coulomb elastic perfectly plastic model. A validation of the 3D numerical model with PISA experimental results has also been presented in the study.