If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Aguas de Santa Barbara: The hottest months are usually December and September, with an average temperature of 23°C, while the coldest months are July and June, with an average of 19°C. The rainiest months in Aguas de Santa Barbara are January, December, February and November, with each month seeing an average of 203 mm of rainfall.