Weather is probably a major factor when you plan your trip to Roxas, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and June with an average temp of 82°F, while the coldest months are February and January with an average of 78°F. The rainiest months in Roxas are December, January, September, and July, with each month seeing an average of 17 inches of rainfall.