Weather will likely play an important role when you plan your trip to Oyo, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and February with an average temp of 80°F, while the coldest months are November and October with an average of 78°F. The rainiest months in Oyo are October, November, April, and December, with each month seeing an average of 8 inches of rainfall.