Calm destinations for Asia in june

I'm looking for some recommendations of where to go in June in Asia..Im currently in Philippines for most of May and like it a lot

June I was considering going back to Indonesia (I've been to Bali and nusa penida) so was considering Lombok, Sulawesi or komodo.

I also considered ko Samui or Koh Tao but I'm unsure of the weather.

What I'm looking for:

- relaxation / calm / not so much tourist

- love to lay on white sandy beaches

- non partier

- like to do morning yoga/pilates, swim , read occasionally scuba dive

- I like hot weather, want to try to avoid any rainy season

- maybe a place to stay for 2 weeks without doing so much moving around

- safe areas where you can walk to dinner, etc

Thanks!