Hi PARA45
Messmate got it spot on. Late May until even as late as August will give you the best chance at baggin your animals since this is our rut. Weather is also very comfortable, with cold mornings and then warming up in the day. September and October will mean that you will miss the rut, but thats not the end of it. With the amount of animals about it should still be action packed. Later than that , it actually becomes unpleasant because our summers can get really hot, which cuts your hunting time per day immensely. In summer you'll hunt from 6 - about 9 then 16:00-till about 19:00. Rest of the day you just loath around because its simply too hot. Moon phases do make a difference, but not as much as the time of the year.
Hope you have a great time.