If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Tequila: The hottest months are usually May and April, with an average temperature of 23°C, while the coldest months are January and February, with an average of 19°C. The rainiest months in Tequila are July, August, September and June, with each month seeing an average of 262 mm of rainfall.