Overview: CascavelCascavel (Brazil) in general has a tropical climate. The day temperatures range from 20 °C (67 °F) in June to 29 °C (84 °F) in December. The driest month is August with just 7 days of rain, on the contrary, the month when it rains the most is January with 17 days of rain. Temperatures during the night go from 8 °C (46 °F) in July to 16 °C (61 °F) in January.