Angra dos Reis has a warm and humid climate year-round, with temperatures gradually decreasing over the course of the year. The hottest months are January and February, where temperatures soar above 30°C for most of the day, with average highs often reaching 38-39°C. As the months progress towards winter in the Southern Hemisphere, temperatures slowly drop, with July being the coolest month, averaging around 19°C. Autumn brings warmer days again, with September and October experiencing a slight increase in temperature, while winters are mild, with temperatures rarely dipping below 15°C. The summer months of December to February are characterized by high humidity and occasional heavy rainfall.