Since its inception the festival of light (and if you're lucky some sound too) has become a firm favorite with the local population as well as tourists, drawing tens of thousands into the streets.
This year, organizers claim the "Staro Riga 2014" program will offer a particularly dazzling display to mark the drawing to a close of the city's stint as a European Capital of Culture.
Earlier in the year organisers claimed this year's event "will change from being an event featuring light and video objects and installations, which it has been in previous years, to a platform for national and international multimedia light and technological art projects."
Hopefully that is just a highbrow way of saying it's still lots of pretty lights people will enjoy looking at.
The festival of Lights will take place over five evenings from 14 to 18 November, with buildings, installations and some sites that defy easy description shining bright between the hours of 18:00 and 23:00.
"The festival has become the largest festival of light, not only in the Baltic States, but also in Scandinavia, and with Riga the European Capital of Culture, the event has gained particularly wide range of international coverage," Riga mayor Nils Ushakovs said at a launch event Tuesday.
"This year's festival has taken not just a step forward but a giant leap, becoming a major international player," festival organizer Marcis Gulbis said. The festival program includes works by artists from Latvia, Lithuania, Great Britain, France, Canada, Portugal and other countries.
The official festival program includes 22 objects along a special route leading through the Old Town and the city center. Maps will be widely available both from booths on the ground and online at www.staroriga.lv (including information in English).
As well as the official installations, inhabitants of the city and business are encouraged to create their own works of art in light.
One of the international artists' works created especially for Latvia will be seen on the facade of the Riga Congress Centre - Canadian Artists' Group Lucioni's work inspired by the Singing Revolution.
Lithuania's Gluck Media will fill Dome Square with a tour through poet Imants Ziedonis' colorful fairy tales.
But as ever, half the fun will come from just wandering the streets at night, never quite sure what will be around the next corner.
A video of last year's Staro Riga can be seen below: