We went to Warrnambool the few days over xmas and it wasn't overly hot. So lucky we had the indoor pool and lots of shopping to do!

We stayed at hopkins river caravanpark. They have their own website. ANd for $116 per night for a two bedroom self contained cabin, I thought that was pretty good!

It was 3 hours from my house. Im guessing it wouldn't be much further from you if you take the fwy.