Queens Birthday - or not?

This is a quote from Wikipedia

'The Queen's Official Birthday  is the selected day on which the birthday of the monarch (currently Queen Elizabeth II) is officially celebrated in those countries. The date varies as adopted by each Commonwealth country, but is generally around the end of May to the start of June, to coincide with a high probability of fine weather in the Northern Hemisphere for outdoor ceremonies'.

I love the thought of having a long weekend holiday.  But having recently celebrated reconciliation week in Australia has made me think about the relevance of the Queens Birthday.

Australia is a monarchy.  Until the time we are no longer part of the Commonwealth we have a day off in celebration of QEII's Birthday (not universities however - go figure).

Her real Birthday is the 21st April, not the 10th of June (today).

Having this holiday in June (the start of the Australian winter) makes little sense .... "high probability of fine weather in the Northern Hemisphere for outdoor ceremonies"  ?????**

From photos.exposay.com

In fact, I am not even sure of the ceremonies people actually attend in Australia, apart from the honours list events and a few BBQ's.

With our varied multicultural society, this day may mean little to many in our ethnic population. 

To our indigenous population, this day, like Australia Day, would not be one to celebrate.  

Not much of this makes sense in the bigger picture.  

Am I looking at this wrongly?


** Maybe it is this day so that we have the closest to an English summers day that we can get!