aestival
arctic
ardent
autumn
autumnal
baking
blistering
boiling
boreal
broiling
brumal
burning
burning hot
ebullient
equinoctial
feverish
flushed
grilling
heated
hibernal
hiemal
hot
hot as fire
hot as hell
like a furnace
like an oven
midsummer
midwinter
out of season
overheated
overwarm
parching
piping hot
red-hot
roasting
scalding
scorching
searing
seasonal
seething
simmering
sizzling hot
smoking hot
solstitial
spring
springlike
sudorific
summer
summerlike
summerly