Other facts from our historical weather data: Which is the hottest month in Nara? May has an average maximum temperature of 42°C (108°F) and is the hottest month of the year. Which is the coolest month in Nara? The coolest month is January with an average maximum temperature of 32°C (90°F). Which is the wettest month in Nara? August tops the wettest month list with 148mm (5.8 in) of rainfall. Which is the driest month in Nara? December is the driest month with 0mm (0 in) of precipitation. Which is the sunniest month in Nara? November is the sunniest month with an average of 270 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.