What time of year are new STD infections the most rampant ?

there are no seasonal outbreaks for STDs.. they can occur anytime of the year; but one could argue that seasonal long holidays (around Christmas and New Year) is to blame; or the fact that cold weather brings people closer under the blanket.. but no, there is no time of the year when STDs are more prevalent than other time of the year.. furthermore, some STDs like HIV and Syphilis may take YEARS before they manifest and present with symptoms; and other STDs you mentioned, Gonorrhoea and Chlamydia may go undetected and only present with symptoms months after contracting those illnesses.. and most people do not remember when or from whom they got the STD from..

i ran a family (GP) clinic for decades, and STD cases come at all seasons with no particular time nor season..