I mean the former; ie in Singapore we don't have seasons, it's hot all year round. How about this?
Watashi no koku, Mainen no gatsu wa Natsu desu; kirai desu.
[I'm trying to say, In my country, it's always summer, and I don't like summer.]
Air-con ha ichiban subarashii no hatsumei desu.
[I'm trying to say, airconditioners are the greatest invention.]