As a rule of thumb the further north you travel the hotter it gets so bear this in mind when planning your vacation to Australia. However, heat can hamper any tour here and traveling around the north or the central regions during December and January is definitely not advisable. Head further south to Tasmania for the best of the weather.
January is also cyclone season in the north of Australia as well as vacation time for families across the country so beaches can get crowded and accommodation prices rise.
February and March are still hot; however, there's a bit more space on the beach during weekdays and you might catch a glimpse of a whale off the coast of Victoria.
April and May are great months to visit Brisbane, the Gold Coast and Melbourne as things are cooling down and there's not much in the way of rain.
Whale watching moves along the coast into New South Wales from May through to July and August with cooler temperatures making for an ideal time to visit the Northern Territory and the northern regions of Western Australia.
June is the start of the Aussie winter and perhaps offers the best time to explore Australia's cities or, alternatively, go hiking in places like Kangaroo Island, Kakadu National Park or the Kimberleys.
September and October are lovely months to visit, with whales moving further north into Queensland or in the other direction into South and Western Australia. The Aussie spring signals the start of flowers and warmer days with wine estates such as Hunter Valley or Barossa Valley offering an abundance of colour as well as grapes on the vine.
The tropical north gets its annual deluge from November through to May and you're advised to look out for jellyfish (stingers), especially around the Great Barrier Reef and the Whitsundays.