Balboa December Nights 2025. Balboa park december nights, san diego’s largest free holiday festival, is about to transform our cultural heart into the most incredible celebration of the year. Start your holidays with december nights!

It is billed as “the city of san diego’s largest free holiday festival in beautiful balboa park.” every year, on the first friday and saturday nights in december, hundreds of thousands. December nights is presented by the city of san diego, hosted in balboa park.