Weather is probably a major factor when you plan your trip to Paso, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually December and January, with an average temperature of 28°C, while the coldest months are August and July, with an average of 26°C. The rainiest months in Paso are May, June, July and April, with each month seeing an average of 350 mm of rainfall.