Osasco, Brazil experiences a subtropical climate with mild winters and warm summers. The coldest months are June and July, with average temperatures ranging from 4-16°C, while the warmest months are January, February, and March, with average temperatures around 23-24°C. Spring and autumn seasons have moderate temperatures, with April and May being slightly cooler than September and October, which mark the beginning of summer. The temperature range during winter is narrow, with a consistent low of around 1-8°C and highs that don't exceed 33°C. Summer months see an increase in temperature, especially in September and November, with highs reaching up to 37°C.