Asked 7 years, 9 months ago
Which is worse for a runner - heat or humidity?
It Is The Heat—And The Humidity
This question about summer weather's impact on a runner has interested me for some time:
A runner runs 5 miles at 6 a.m. one day with cloudy skies, an 80-degree temperature and 80 percent humidity. That same runner a few days later runs 5 miles at 4 p.m. under sunny skies with a 95-degree temperature and 50 percent humidity. Which of the two external weather conditions is more taxing on the runner assuming the exact same running route and running pace? Why?