Other facts from our historical weather data: Which months have the greatest rainfall in Cape Coast? Most rainfall (rainy season) is seen in May and June. Which is the wettest month in Cape Coast? June tops the wettest month list with 228mm (9 in) of rainfall. Which is the driest month in Cape Coast? January is the driest month with 34mm (1.3 in) of precipitation. 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.