I also travelled to Iceland in warmer times. Talking to the locals about the aurora, you can see them pretty much anywhere outside of the towns and cities (to avoid the lights). Iceland is pretty much all nature – superb waterfalls, glaciers, lakes and unusual formations from a combination of ice and volcanoes (Lake Myvatn is excellent). I’d also look at a tour with folks who know more about the conditions of the roads and where you can get through etc. Have a great trip.