Marché Mouffetard in Paris's 5e runs daily down a pedestrian street the locals call la Mouffe. Open tue-sat 08:00-19:30, sun 08:00-12:30. At Rue Mouffetard.
Tip: Sunday morning 09:00-12:30 is the all-week peak; permanent shops trade Tuesday-Saturday too.
Market€Tue-Sun 09:00-13:00 + 16:00-19:30, Sun 09:00-13:30
Marché d'Aligre in Paris's 12e arrondissement runs the city's most editorially-loved open-air market and covered hall six mornings a week from Tuesday.
Tip: Saturday and Sunday morning are the peak; arrive before 11:00 for the cheese stalls.