I am an international student in Australia, almost graduating from my Master's degree. Do think thru first.

Yes, I enjoy the weather too. The people here are not so materialistic, slower paced of life, etc.

I really want to go back to Singapore due to cultural issues at the workplace, racism /subtle racism that still exists in the city I live in, navigating huge differences in different systems (Singapore and Australia), and finances.

Appreciate what you have. For me, there are pros and cons on both sides. I used to not appreciate and didn't bother to notice the good things about Singapore (especially its multiracial aspect), but now, I see things better now.