Hey, Jeovy!
I did try to kite in front of Benin Marina Hotel on last Monday and Wednesday. On the first try, the wind was too light sometimes and I even got a stall!
On the second, the wind was great! The sea, however, had no mercy! Going right was easy. Even made nice jumps using waves as ramps. Going to the left was really hard, as both wind and waves were pulling hard towards the beach. Impossible to go upwind.
I am trying to find a more calm beach, maybe to the west. Someone said that the sea at "Casa del Papa" is better. Probably going there on Saturday. I'll post here my findings.
By the way, are you in Cotonou right now?
Cheers! 