I’m in Sydney so very different climate but we’re still hitting 19-20c some days and the coldest its been is 6c but only at dawn. My bees are behaving the same as yours and it’s almost like they think its spring.
I packed one of my hives down to 1 box and the other hadn’t actually reached two boxes due to SHB issues last summer. I do however use 10 frame deeps.
I assume you have the 6 frame flow hive / 8 frame brood box? At this stage I wouldn’t be doing anything like removing honey or the honey super but monitoring how much they have stored for winter survival, by the sounds of it they are still bringing in nectar so you may be able to harvest some just before spring and swarming season hits in August-September. Removing honey prior to swarming season can lower the instinct to swarm in the first place.
I would strongly consider having a second brood box ready to go for spring buildup as a single 8 frame brood box is likely to induce swarming, conventional wisdom advises a minimum of a single 10 frame brood box in Sydney (mostly two) and the same applies the further north you go in Australia.
I’m only just about to try 8-frame deep boxes and I bought four, at least two will be brood, a third may be brood and food, and the fourth will be for me lol.