A normal day/night temperature swing is 30-60F degrees depending on the season and the cloud cover.  (Clouds equals warmer nights, cooler days.) So even when it is hot during the day it will cool rapidly as the sun goes down and the nights are always pleasantly cool.  For example, it was 102F today at noon but it's (checking the thermometer) 44F at 1:00 AM.  (The interior temperature of our non- air-conditioned adobe house is 76F -- which explains why adobe is a superior building material for New Mexico.)  

I guess I should add we live at 6,500' or about 2,000 meters in altitude which needs to be added when thinking about temperature swings.  

A doo run-run-run, a doo run-run