If you're looking for summer vibes, the best time to travel to Marilia is in January, September and October, when the average temperature reaches 33.38 °C, while August, July and September are the 3 sunniest months of the year, with an average of 154.6 hours.
If you prefer colder temperatures, however, make sure you visit Marilia during the months of July, May and June to experience an average of 12.68 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during January, February and April, when the average precipitation in Marilia is 5.25 mm, while the months of January, February and March are drier, with an average of 0 mm.