For sure! August is a great time to visit FWIW, Parisians flee the city for vacation (and the tourist load is always high here any time of the year anyway), so

For sure! August is a great time to visit FWIW, Parisians flee the city for vacation (and the tourist load is always high here any time of the year anyway), so more quiet and calm. The catacombs are constant temperature, so a great way to escape the heatwave ;)