Marilia's weather is characterized by mild winters and hot, humid summers. The coldest months are June and July, with temperatures rarely dropping below 5°C or rising above 23°C, averaging around 16°C. Spring, from March to May, brings moderate temperatures, warming up to averages of 28-29°C. Summer, from September to November, is hot and humid, with temperatures often reaching highs of 33-36°C, while winters, from December to February, are mild, with temperatures ranging from 19-32°C on average. Autumn, from March to May, has a more stable temperature range, averaging around 28-21°C.