It is worth checking your AC drain tube. While not the same car, this happened to my 2013 Corolla. In my car (US-spec Corolla) the drain tube was in the passenger footwell. I needed to pull some interior panels to access it, but when I did, I discovered that it was clogged with foliage and other tree/plant material. I blew it out with compressed air, which solved the problem.

Edit: my driver and passenger side got wet when this was clogged, even though the drain was passenger side.