Ugh, this was the part I hated most about commuting on the MBTA in Boston. It's not too bad in the winter (cold) or summer (AC is on all the time), but the shoulder seasons, when humidity is high but temperatures are moderate so the AC isn't on, were brutal.

Ya, it often isn't very comfortable. Even our office has this problem, they can never see the bigger picture that humidity is just as bad as temperature for getting work done.