So the conditions have not been back to NORMAL contrary to what was being said!!!! I knew it is too good to be true.I was just in the North Andaman area (Mergui Archipelago) and there were still lots of jellies (ended up in a thick soup of tiny - just a few millimeters - but quite stingy ones at one safety stop), thermoclines (my computer registered 24C at one point) and intermittent visibility - sometimes we could see the 30-40m deep bottom from the safety stop, sometimes it was down to ~5 meters.
The coldest I had in Jan was 22C.