The best time to visit is during the drier months: February and March. Other facts from our historical weather data: Which months have the greatest rainfall in Unitedville? Most rainfall (rainy season) is seen in June, September and October. Which is the hottest month in Unitedville? April has an average maximum temperature of 34°C (93°F) and is the hottest month of the year. Which is the coolest month in Unitedville? The coolest month is January with an average maximum temperature of 29°C (84°F). Which is the wettest month in Unitedville? June tops the wettest month list with 174mm (6.9 in) of rainfall. Which is the driest month in Unitedville? March is the driest month with 42mm (1.7 in) of precipitation. Which is the sunniest month in Unitedville? April is the sunniest month with an average of 256 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.