I thinkI've been there during main season (informing beforehands would be useful) and it was aweful. (lashworldtour.com)
There are two main seasons in the Mentawai: the dry season, which runs from around February to October, and the wet season, which takes up November to January. (mentawaisurfcharters.com)
HI there We would have to contact the accommodation supplier to check this as Greece main season starts 1st May... I will email you directly. (loveholidays.com)