If you're looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Tepic: The hottest months are usually May and April, with an average temperature of 23°C, while the coldest months are February and January, with an average of 20°C. The rainiest months in Tepic are August, July, September and June, with each month seeing an average of 450 mm of rainfall.