Best climate for fitness training?

high altitude! I live more than a mile above sea level and now I am well conditoned.

i prefer you winter….Its too good to exercise in winter season.

because the lesser you sweat the more you exercise.

If the A/C is off in our gym, I actually like it. I sweat a lot more and just feel like i had a better workout. Drink lots of water though. You don’t need heat stroke while trying to rebuild your body.