San Isidro, Philippines experiences a warm and relatively consistent climate year-round. The dry season typically starts in March and peaks in May, with temperatures rising to an average high of 38°C in May. June marks the beginning of the wet season, but temperatures remain relatively stable, ranging from 23-38°C. July is another hot month, although slightly cooler than May, with temperatures averaging around 28°C. The wet season continues into October, with temperatures gradually decreasing to a relatively mild average high of 25°C by the end of the month.