Well i Live in Bangalore, India. The Temperature Never Goes beyound 29
C, and most of the time its 25 C, and during night it falls below 20
C. Its been pretty overcast throughout the last month and this.

Tomatoes should be perennial there. I'm not sure how many years a
tomato plant lives, but they can get fairly large (and woody).

In colder climates you only see that if they are indoors.

And I imagine you could probably start them any time of year (with
rainfall perhaps being your biggest issue).