Objective: To determine the sun protection knowledge and habits among street vendors of the Moshoqueque market (Chiclayo, Lambayeque) in January and February 2020. Materials and methods: A descriptive and cross-sectional study. A data collection sheet was prepared. The sample consisted of 362 street vendors. A 95 % confidence interval, 5 % accuracy and 50 % of the expected frequency were applied. Results: The average age of the study subjects was 48.54 (SD = 11.6 years) and most of them were women (61 %). The median time as street vendors was 15 years. Ninety-two point five percent (92.5 %) were exposed to the sun 7.6 hours per day. Regarding sun protection knowledge, more than 90 % were aware that skin redness and aging are effects of ultraviolet radiation (UVR). As for their sun protection habits, 34 % never used sunscreen, 90 % did not wear wide-brimmed hats, but they used visors and ...