You can plan your beach trip with this snapshot of year-round temperatures in Técpan de Galeana: The hottest months are usually May and July, with an average temperature of 27°C, while the coldest months are February and January, with an average of 25°C. The rainiest months in Técpan de Galeana are September, August, June and October, with each month seeing an average of 262 mm of rainfall.