Hellish hot and humidity 30c daytime 20c evening
Humid and warm - 30 to 33 degrees from November until March. Rain and storms regularly after hot days. Sea breeze keeps it a bit cooler near the coast (Ipswich and western Suburbs can be a few degrees warmer).
It certainly can be humid here in the summer but 'hellishly hot'? 30 degrees is normal but I wouldn't call it that hot compared say with Rocky or even West of here such as Gayndah - now THAT'S hot!
Humid from Dec to March. Temp up to around 33c