Hi, I've been last year 10 days, starting from 29th of March, in Barbados, I am from Italy.
Wind almost every day (20 knots max) nice waves and sun. kites 9-12 RPM with twintip -.82kg.
I stayed right near the beach at studio Mallory Bay House.
Everything was perfect for me I had very great time!
Remember that you will probably need to rent a car, otherwise you need to catch buses, but I suggest you to get a car so you can visit the island and beaches, some are very beautiful.
Hope that I have been useful