The windiest time for the Far East is Nov-March roughly. That is North East Monsoon season.
Taiwan (Penghu) is windiest with JP/NP kit
Mui Ne (Vietnam) is magic. Picturesque, strong wind. Starboard/Severne kit.
Malaysia, Thailand, Phillipines and Indonesia have lighter winds than the 2 above.
Of those 4, Thailand has the best rental kit whilst Phillipines and Indonesia probably have the lowest cost of living.