While our local heatwave has given us a slight break, the whole country plus Europe can identify with our summer weather thus far.
French word for a heatwave. It is based on the alternate name of Sirius, the main star in the Grand Chien constellation (Great Dog or Canis Major in English), which rises and sets with the sun during the hottest days of summer. This also explains the English expression "the dog days" of summer.
Definition via: chocolateandzucchini.com