canicular (adj.)

• aestival
• arctic
• ardent
• autumnal
• baking
• blistering
• boreal
• brumal
• burning
• ebullient
• equinoctial
• feverish
• flushed
• heated
• hibernal
• hiemal
• hot
• overheated
• red-hot
• scorching
• searing
• seasonal
• seething
• springlike
• sudorific
• summery
• sweltering
• sweltry
• torrid
• vernal
• white-hot
• wintery
• wintry