The tears of St. Laurent (or the Perseids), are in fact a swarm of meteors visible in the Earth's atmosphere. A pretty impressive show.
The maximum occurs each year around August 12 (the night of 11 to 12 or 12 to 13), shortly after the St. Laurent, which is worth the nickname "tears of St. Laurent."
(In memory of Laurent of Rome, died as a martyr on a grill on August 10, 258 in Rome).
These shooting stars are dust particles associated with the comet 109P / Swift-Tuttle whose orbital period is 133 years (its last passage closest to the Sun dates from 1992). As its orbit crosses that of the Earth around the Sun, our planet crosses this current of dust every year, in the heart of summer.