Hey Megha, June is a wet season in Andaman and there will be high tidal waves and winds ... Better to avoid in June and plan sometime between November and May ... Happy Travelling!!!
Hey Megha,
I went on a trip to Andamans in June of 2017. The trip was very pleasing. There was no high tides as such but sea walk was closed for the season. However there was no issue regarding scuba diving and snorkelling. We also enjoyed our beach tans and had a really great time. Hope you got the required information. If not do read my blog post for more details :) https://www.tripoto.com/trip/amazing-andamans-5b7b90cebea84
June is not an ideal month as it will be mostly raining . heavy showers. Oct to April is the ideal month to visit the islands to enjoy the beaches and for local sightseeing
June would be too hot a month to visit. remember it's a sea side destination hence will be high on humidity. plan for October onwards when the crowds also would be lesser and weather a bit cooler than June.