The present study reports the Portuguese adaptation of the Explora -Questionnaire for Career Guidance, analyzing indicators of precision and validity in a Portuguese sample of students from the 9th grade in Portuguese public schools in Lisbon, Setúbal and Beja (n=492), 244 (49.6%) female and 248 (50.4%) males, with a mean age of 14.7 years and a median of 15 years.The internal consistency indicators, the principal component analysis with varimax rotation, and the correlations with other instruments of interest assessment already adapted for Portugal, show that this instrument maintains good psychometric characteristics in the Portuguese adaptation and similar to the original version.These results allow us to consider the Explora an instrument suitable for use with students of this age group, that can help them in the educational choices at the end of the 9th year of schooling.