Because Of Their Structural Efficiency And Attractive Appearance, Hexagonal Tall Buildings Are Becoming Rather Popular. Comparative Analysis Of The Aerodynamic Forces Operating On The Buildings In Isolation Against In Close Proximity Investigates The Interference Effects. Additionally, The Impact Of Varying Wind Incidence Angles On These Cases Is Studied To Understand The Aerodynamic Behaviour Of Hexagonal Tall Buildings. In This Research The Analysis Is Done Using ANSYS CFX To Determine The Wind Pressure At Different Heights And Faces Of The Building. Further Pressure Coefficients(Cpe) , Interference Factors(I.F) And Interference Difference(I.D) Is Found Out At Each Face Of The Single Building , 2 Building And 3 Building Cluster At Different Wind Incidence Angles Starting From 0 Degrees To 90 Degrees With An Interval Of 15 Degrees. In Case Of 2 Building And 3 Building Cluster , Pressure Coefficients(Cpe) Is Calculated On Each Face And Is Compared With The Pressure Coefficients(Cpe) Of Each Face Of A Single Hexagonal Building. The Value Of Pressure Coefficients Versus The Wind Incidence Angle For Each Face Of The Single Building,2 Buildings And 3 Buildings Are Shown In The Form Of A Bar Graph. A Schematic Graph Of Interference Factor(I.F) And Interference Difference(I.D) Versus The Wind Incidence Angles Will Also Show In The Respective Graphs.