Rio Branco experiences a mild climate year-round, with temperatures rarely dropping below 12°C or rising above 38°C. The spring months of September and October bring warmth, averaging highs around 37°C, while the autumn months of April and May are slightly cooler, averaging highs in the mid-20s to low 30s Celsius. Winters in June and July are mild, with temperatures ranging from 12°C to 35°C on average, while summers from January to March are hot, but still relatively pleasant, with temperatures peaking at around 33°C. The city sees a slight increase in temperature during the latter part of the year, with August to December averaging highs slightly above 26°C. Overall, Rio Branco's climate is characterized by mild winters and warm summers, with minimal seasonal variation.