On: July was the hottest month ever recorded, according to Nasa

[flukus]

How about Bangkok: http://www.holiday-weather.com/bangkok/averages/

The average high temperature for some months is in the low to mid 30's and with >90% humidity (which goes up locally after rain).

[madaxe_again → flukus]

>90%!=100%. Read up on "wet bulb temperature". Or, if you prefer, go sit in a 40 degree sauna at 100% humidity for six hours, then report back.