Other facts from our historical weather data: When is summer in Rapa Nui?The hottest season / summer takes place in January, February, March and April. Which is the warmest month in Rapa Nui? February has an average maximum temperature of 26°C (79°F) and is the warmest month of the year. Which is the coldest month in Rapa Nui? The coldest month is August with an average maximum temperature of 21°C (70°F). Which is the wettest month in Rapa Nui? April tops the wettest month list with 96mm (3.8 in) of rainfall. Which is the driest month in Rapa Nui? February is the driest month with 56mm (2.2 in) of precipitation. Which is the sunniest month in Rapa Nui? January is the sunniest month with an average of 291 hours of sunshine. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.