What effect does heat have on calorie burn?

OneHundredToLose

I typically walk 2 - 5 miles per day; 2 miles to work and 2 miles back, then some extra stuff in between. I know what kind of calorie burn I'm getting from that walk, but I typically don't bother logging it because it's fairly minimal and I like having a slightly bigger deficit without realizing it.

However, where I live it's 100+ degrees Fahrenheit most of the year. Yesterday it got up to 115, for instance. When I walked to work this morning it was 102 at 7am. I'm wondering if the heat results in a significantly higher burn (no pun intended) than walking in a moderate climate, or if the difference is negligible?

queenliz99

Are you in Arizona? I would say the calorie would be negligible.

astrampe

Nothing...... Otherwise there would be no fat people in hot places....

_Waffle_

Negligible. Heat just makes it harder for you to get the same calorie burn if anything.