The best places for clear skies in Eastern Australia in July are all in Queensland. They are:
1. Croydon (best)
2. Georgetown
3. Julia Creek
4. Normanton
5. Richmond
6. Winton
Croydon has 24.8 clear days and 1.1 cloudy days in July.
http://www.bom.gov.au/climate/averag...w_029012.shtml
Georgetown has 21 clear days and 2 cloudy days in July.