Taking into account the local weather in Benin City is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually January and February with an average temp of 83°F, while the coldest months are August and July with an average of 78°F. The rainiest months in Benin City are September, June, July, and August, with each month seeing an average of 14 inches of rainfall.