San Antonio, Philippines experiences a relatively consistent warm climate year-round. March marks the beginning of warmer temperatures, with an average high of 30°C, setting the tone for the upcoming months. June brings a slight dip in temperature, averaging around 27°C, but still pleasant and warm. The cooler season is brief, as September's average high returns to around 25°C, only slightly lower than previous months. Overall, San Antonio enjoys a tropical climate with mild winters and hot summers, making it an ideal destination for those seeking warm weather year-round.