Weather will likely play an important role when you plan your trip to Oyo, but bear 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 temperature of 27°C, while the coldest months are November and October, with an average of 26°C. The rainiest months in Oyo are October, November, April and December, with each month seeing an average of 198 mm of rainfall.