If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Elmina: The hottest months are usually April and March with an average temp of 82°F, while the coldest months are August and September with an average of 77°F. The rainiest months in Elmina are June, May, October, and July, with each month seeing an average of 8 inches of rainfall.