Most of Oz is suffering from a drought due to El Nino. Also from colder than normal due to influx of air from Antarctica -- all due from warming causing hotter air further north but being deflected north. For Tahiti it becomes a crapshoot as to whether the change in air pressure pattern causes the cyclones to hit or miss. As 1982 showed they tend to follow a set path, so if one hits the next will be also hitting a month later
Overall I would view Tahiti as high-risk for long-range expensive vacation planning and would pick a more convenient/changeable/alterable destination such as NZ or Oz or even Bali if wanting tropical island. Having been stranded for a few days in the middle of the Pacific a couple of times before makes me cautious that way.

Eventually El Nino will break the drought in California with torrential rain -- ample geologic evidence of that pattern all along the west coast of both north and south america. Just a question of which year or decade.