June weather forecast in Rio das Ostras

June in Rio das Ostras is the coldest month of the year. In June, the weather in Rio das Ostras is typically warm. Average daily high temperature in June is about 24 degrees above zero. On average, Rio das Ostras has 20 sunny, 7 partly cloudy, and 3 rainy days in June. The rains are usually heavy. June as well as May, July, and August is considered the most comfortable time to visit Rio das Ostras.