Places having high temperature are always located near/exactly the equator. Also, the place have desert tho... 

As far as I know, Kuwait City and Ahwaz have an average temperature of 46° C or 115° F always.

I don't know which has the higher temp but I still hope that my answer help. ☺
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I've searched the cities on internet and based on the info's I got, Ahwaz has the higher temperature among the two which means Ahwaz had the highest temperature in the world ._.
ang galing nyo po :)
According to the table, Manila had the highest temperature.
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