San Ildefonso, Philippines experiences a warm and humid climate throughout the year. The dry season begins in March, with temperatures gradually increasing to reach their peak in May, averaging highs of around 38°C. From June to October, temperatures remain relatively consistent, with average highs ranging from 28-31°C. In November and December, temperatures begin to drop slightly, but still remain warm, with average highs in the mid-30s. The cooler months are limited, with January and February averaging highs of around 26-27°C, offering a brief respite from the heat.