Taking the local weather in Santa Bárbara into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually September and August, with an average temperature of 19°C, while the coldest months are July and January, with an average of 19°C. The rainiest months in Santa Bárbara are November, October, April and March, with each month seeing an average of 455 mm of rainfall.