Taking the local weather in Santa Ana 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 January and February, with an average temperature of 27°C, while the coldest months are July and June, with an average of 17°C. The rainiest months in Santa Ana are November, October, January and March, with each month seeing an average of 188 mm of rainfall.