canicular
1. [ adjective ] of or relating to the dog days of summer
Examples:

"the canicular heat of the Deep South"

Related terms: dog_days
2. [ adjective ] relating to or especially immediately preceding or following the heliacal rising of Canicula (the Dog Star)
Examples:

"canicular days"

Related terms: Sirius
Similar spelling:   Canicula
  canicule